89 datasets found
  1. Cities with the highest altitudes in the world

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Cities with the highest altitudes in the world [Dataset]. https://www.statista.com/statistics/509341/highest-cities-in-the-world/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2020
    Area covered
    World
    Description

    The highest city in the world with a population of more than one million is La Paz. The Capital of Bolivia sits ***** meters above sea level, and is more than 1,000 meters higher than the second-ranked city, Quito. La Paz is also higher than Mt. Fuji in Japan, which has a height of 3,776 meters. Many of the world's largest cities are located in South America. The only city in North America that makes the top 20 list is Denver, Colorado, which has an altitude of ***** meters.

  2. Altitude of cities in Morocco 2020

    • statista.com
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    Statista, Altitude of cities in Morocco 2020 [Dataset]. https://www.statista.com/statistics/1316290/altitude-of-cities-in-morocco/
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    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2019 - 2020
    Area covered
    Morocco
    Description

    As of 2020, Ifrane was the highest city in Morocco, with an altitude of ***** meters. Midelt and Errachidia followed, as they were ***** meters and ***** meters above sea level, respectively. In contrast, the areas of Tétouan and Kénitra each recorded the lowest altitude in the country.

  3. Data from: STAQS NASA G-III High Altitude Lidar Observatory (HALO) Data

    • catalog.data.gov
    • s.cnmilf.com
    • +1more
    Updated Sep 18, 2025
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    NASA/LARC/SD/ASDC (2025). STAQS NASA G-III High Altitude Lidar Observatory (HALO) Data [Dataset]. https://catalog.data.gov/dataset/staqs-nasa-g-iii-high-altitude-lidar-observatory-halo-data-5c108
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    Dataset updated
    Sep 18, 2025
    Dataset provided by
    NASAhttp://nasa.gov/
    Description

    STAQS_AircraftRemoteSensing_NASA-G3_HALO_Data is the remotely sensed trace gas data for the NASA Gulfstream III aircraft taken by the High Altitude Lidar Observatory (HALO) instrument as part of the Synergistic TEMPO Air Quality Science (STAQS) mission. Data collection for this product is complete.Launched in April 2023, NASA’s Tropospheric Emissions: Monitoring of Pollution (TEMPO) satellite monitors major air pollutants across North America every daylight hour at high spatial resolution at a geostationary orbit (GEO). With these measurements, NASA’s STAQS mission seeks to integrate TEMPO satellite observations with traditional air quality monitoring to improve understanding of air quality science. STAQS is being conducted during summer 2023, targeting urban areas, including Los Angeles, New York City, and Chicago. As part of the mission two aircraft will be outfitted with various remote sensing payloads. The Johnson Space Center (JSC) Gulfstream-V (G-V) aircraft will feature the GeoCAPE Airborne Simulator (GCAS) and combined High Spectral Resolution Lidar-2 (HSRL-2) and Ozone Differential Absorption Lidar (DIAL). This payload provides repeated high-resolution mapping of NO2, HCHO, ozone, and aerosols up to 3x per day over targeted cities. NASA Langley Research Center’s (LaRC’s) Gulfstream-III will measure city-scale emissions 2x per day over the targeted cities with the High-Altitude Lidar Observatory (HALO) and Airborne Visible InfraRed Imaging Spectrometer – Next Generation (AVIRS-NG). STAQS will also incorporate ground-based tropospheric ozone profiles from the NASA Tropospheric Ozone Lidar Network (TOLNet), NO2, HCHO, and ozone measurements from Pandora spectrometers, and will leverage existing networks operated by the EPA and state air quality agencies. The primary goal of STAQS is to improve our current understanding of air quality science under the TEMPO field of regard. Further goals include evaluating TEMPO level 2 data products, interpreting the temporal and spatial evolution of air quality events tracked by TEMPO, improving temporal estimates of anthropogenic, biogenic, and greenhouse gas emissions, and assessing the benefit of assimilating TEMPO data into chemical transport models.

  4. Global elevation spans by select country

    • statista.com
    Updated Nov 26, 2018
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    Statista (2018). Global elevation spans by select country [Dataset]. https://www.statista.com/statistics/935722/highest-and-lowest-elevation-points-worldwide-by-select-country/
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    Dataset updated
    Nov 26, 2018
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2018
    Area covered
    World
    Description

    This statistic displays the countries with the greatest range between their highest and lowest elevation points. China and Nepal share the highest elevation point worldwide, which ascends to an amount of 8848 meters above sea level. Near the city Turpan Pendi, Xinjiang, China's elevation reaches *** meters below sea level.

  5. a

    Surging Seas: Risk Zone Map

    • amerigeo.org
    • data.amerigeoss.org
    • +1more
    Updated Feb 18, 2019
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    AmeriGEOSS (2019). Surging Seas: Risk Zone Map [Dataset]. https://www.amerigeo.org/datasets/surging-seas-risk-zone-map
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    Dataset updated
    Feb 18, 2019
    Dataset authored and provided by
    AmeriGEOSS
    Description

    IntroductionClimate Central’s Surging Seas: Risk Zone map shows areas vulnerable to near-term flooding from different combinations of sea level rise, storm surge, tides, and tsunamis, or to permanent submersion by long-term sea level rise. Within the U.S., it incorporates the latest, high-resolution, high-accuracy lidar elevation data supplied by NOAA (exceptions: see Sources), displays points of interest, and contains layers displaying social vulnerability, population density, and property value. Outside the U.S., it utilizes satellite-based elevation data from NASA in some locations, and Climate Central’s more accurate CoastalDEM in others (see Methods and Qualifiers). It provides the ability to search by location name or postal code.The accompanying Risk Finder is an interactive data toolkit available for some countries that provides local projections and assessments of exposure to sea level rise and coastal flooding tabulated for many sub-national districts, down to cities and postal codes in the U.S. Exposure assessments always include land and population, and in the U.S. extend to over 100 demographic, economic, infrastructure and environmental variables using data drawn mainly from federal sources, including NOAA, USGS, FEMA, DOT, DOE, DOI, EPA, FCC and the Census.This web tool was highlighted at the launch of The White House's Climate Data Initiative in March 2014. Climate Central's original Surging Seas was featured on NBC, CBS, and PBS U.S. national news, the cover of The New York Times, in hundreds of other stories, and in testimony for the U.S. Senate. The Atlantic Cities named it the most important map of 2012. Both the Risk Zone map and the Risk Finder are grounded in peer-reviewed science.Back to topMethods and QualifiersThis map is based on analysis of digital elevation models mosaicked together for near-total coverage of the global coast. Details and sources for U.S. and international data are below. Elevations are transformed so they are expressed relative to local high tide lines (Mean Higher High Water, or MHHW). A simple elevation threshold-based “bathtub method” is then applied to determine areas below different water levels, relative to MHHW. Within the U.S., areas below the selected water level but apparently not connected to the ocean at that level are shown in a stippled green (as opposed to solid blue) on the map. Outside the U.S., due to data quality issues and data limitations, all areas below the selected level are shown as solid blue, unless separated from the ocean by a ridge at least 20 meters (66 feet) above MHHW, in which case they are shown as not affected (no blue).Areas using lidar-based elevation data: U.S. coastal states except AlaskaElevation data used for parts of this map within the U.S. come almost entirely from ~5-meter horizontal resolution digital elevation models curated and distributed by NOAA in its Coastal Lidar collection, derived from high-accuracy laser-rangefinding measurements. The same data are used in NOAA’s Sea Level Rise Viewer. (High-resolution elevation data for Louisiana, southeast Virginia, and limited other areas comes from the U.S. Geological Survey (USGS)). Areas using CoastalDEM™ elevation data: Antigua and Barbuda, Barbados, Corn Island (Nicaragua), Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, San Blas (Panama), Suriname, The Bahamas, Trinidad and Tobago. CoastalDEM™ is a proprietary high-accuracy bare earth elevation dataset developed especially for low-lying coastal areas by Climate Central. Use our contact form to request more information.Warning for areas using other elevation data (all other areas)Areas of this map not listed above use elevation data on a roughly 90-meter horizontal resolution grid derived from NASA’s Shuttle Radar Topography Mission (SRTM). SRTM provides surface elevations, not bare earth elevations, causing it to commonly overestimate elevations, especially in areas with dense and tall buildings or vegetation. Therefore, the map under-portrays areas that could be submerged at each water level, and exposure is greater than shown (Kulp and Strauss, 2016). However, SRTM includes error in both directions, so some areas showing exposure may not be at risk.SRTM data do not cover latitudes farther north than 60 degrees or farther south than 56 degrees, meaning that sparsely populated parts of Arctic Circle nations are not mapped here, and may show visual artifacts.Areas of this map in Alaska use elevation data on a roughly 60-meter horizontal resolution grid supplied by the U.S. Geological Survey (USGS). This data is referenced to a vertical reference frame from 1929, based on historic sea levels, and with no established conversion to modern reference frames. The data also do not take into account subsequent land uplift and subsidence, widespread in the state. As a consequence, low confidence should be placed in Alaska map portions.Flood control structures (U.S.)Levees, walls, dams or other features may protect some areas, especially at lower elevations. Levees and other flood control structures are included in this map within but not outside of the U.S., due to poor and missing data. Within the U.S., data limitations, such as an incomplete inventory of levees, and a lack of levee height data, still make assessing protection difficult. For this map, levees are assumed high and strong enough for flood protection. However, it is important to note that only 8% of monitored levees in the U.S. are rated in “Acceptable” condition (ASCE). Also note that the map implicitly includes unmapped levees and their heights, if broad enough to be effectively captured directly by the elevation data.For more information on how Surging Seas incorporates levees and elevation data in Louisiana, view our Louisiana levees and DEMs methods PDF. For more information on how Surging Seas incorporates dams in Massachusetts, view the Surging Seas column of the web tools comparison matrix for Massachusetts.ErrorErrors or omissions in elevation or levee data may lead to areas being misclassified. Furthermore, this analysis does not account for future erosion, marsh migration, or construction. As is general best practice, local detail should be verified with a site visit. Sites located in zones below a given water level may or may not be subject to flooding at that level, and sites shown as isolated may or may not be be so. Areas may be connected to water via porous bedrock geology, and also may also be connected via channels, holes, or passages for drainage that the elevation data fails to or cannot pick up. In addition, sea level rise may cause problems even in isolated low zones during rainstorms by inhibiting drainage.ConnectivityAt any water height, there will be isolated, low-lying areas whose elevation falls below the water level, but are protected from coastal flooding by either man-made flood control structures (such as levees), or the natural topography of the surrounding land. In areas using lidar-based elevation data or CoastalDEM (see above), elevation data is accurate enough that non-connected areas can be clearly identified and treated separately in analysis (these areas are colored green on the map). In the U.S., levee data are complete enough to factor levees into determining connectivity as well.However, in other areas, elevation data is much less accurate, and noisy error often produces “speckled” artifacts in the flood maps, commonly in areas that should show complete inundation. Removing non-connected areas in these places could greatly underestimate the potential for flood exposure. For this reason, in these regions, the only areas removed from the map and excluded from analysis are separated from the ocean by a ridge of at least 20 meters (66 feet) above the local high tide line, according to the data, so coastal flooding would almost certainly be impossible (e.g., the Caspian Sea region).Back to topData LayersWater Level | Projections | Legend | Social Vulnerability | Population | Ethnicity | Income | Property | LandmarksWater LevelWater level means feet or meters above the local high tide line (“Mean Higher High Water”) instead of standard elevation. Methods described above explain how each map is generated based on a selected water level. Water can reach different levels in different time frames through combinations of sea level rise, tide and storm surge. Tide gauges shown on the map show related projections (see just below).The highest water levels on this map (10, 20 and 30 meters) provide reference points for possible flood risk from tsunamis, in regions prone to them.

  6. e

    Inspire data set BPL “Behind the high altitude path (original)”

    • data.europa.eu
    wfs, wms
    Updated Oct 17, 2023
    + more versions
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    (2023). Inspire data set BPL “Behind the high altitude path (original)” [Dataset]. https://data.europa.eu/data/datasets/665bb77f-37db-4647-8d62-c0b8cfafb9f7/embed
    Explore at:
    wms, wfsAvailable download formats
    Dataset updated
    Oct 17, 2023
    Description

    According to INSPIRE transformed development plan “Behind the high altitude path (original)” of the city of Nürtingen based on an XPlanung dataset in version 5.0.

  7. United States: average elevation in each state or territory as of 2005

    • statista.com
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    Statista, United States: average elevation in each state or territory as of 2005 [Dataset]. https://www.statista.com/statistics/1325529/lowest-points-united-states-state/
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    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2005
    Area covered
    United States
    Description

    The United States has an average elevation of roughly 2,500 feet (763m) above sea level, however there is a stark contrast in elevations across the country. Highest states Colorado is the highest state in the United States, with an average elevation of 6,800 feet (2,074m) above sea level. The 10 states with the highest average elevation are all in the western region of the country, as this is, by far, the most mountainous region in the country. The largest mountain ranges in the contiguous western states are the Rocky Mountains, Sierra Nevada, and Cascade Range, while the Appalachian Mountains is the longest range in the east - however, the highest point in the U.S. is Denali (Mount McKinley), found in Alaska. Lowest states At just 60 feet above sea level, Delaware is the state with the lowest elevation. Delaware is the second smallest state, behind Rhode Island, and is located on the east coast. Larger states with relatively low elevations are found in the southern region of the country - both Florida and Louisiana have an average elevation of just 100 feet (31m) above sea level, and large sections of these states are extremely vulnerable to flooding and rising sea levels, as well as intermittent tropical storms.

  8. World Cities

    • kaggle.com
    • huggingface.co
    zip
    Updated May 8, 2022
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    Harry Wang (2022). World Cities [Dataset]. https://www.kaggle.com/datasets/harrywang/world-cities
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    zip(1478133 bytes)Available download formats
    Dataset updated
    May 8, 2022
    Authors
    Harry Wang
    Description

    Source

    The data file is from https://simplemaps.com/data/world-cities.

    fieldnamedescription
    cityThe name of the city/town as a Unicode string
    city_asciicity as an ASCII string (e.g. Goiania). Left blank if ASCII representation is not possible.
    latThe latitude of the city/town.
    lonThe longitude of the city/town.
    countryThe name of the city/town's country.
    iso2The alpha-2 iso code of the country.
    iso3The alpha-3 iso code of the country.
    admin_nameThe name of the highest level administration region of the city town (e.g. a US state or Canadian province). Possibly blank.
    capitalBlank string if not a capital, otherwise: primary - country's capital (e.g. Washington D.C.) admin - first-level admin capital (e.g. Little Rock, AR) minor - lower-level admin capital (e.g. Fayetteville, AR)
    populationAn estimate of the city's urban population. Only available for some (prominent) cities. If the urban population is not available, the municipal population is used.
    idA 10-digit unique id generated by SimpleMaps. We make every effort to keep it consistent across releases and databases (e.g. U.S Cities Database).
  9. World Cities Database

    • kaggle.com
    zip
    Updated Aug 23, 2017
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    Max Mind (2017). World Cities Database [Dataset]. https://www.kaggle.com/max-mind/world-cities-database
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    zip(44473063 bytes)Available download formats
    Dataset updated
    Aug 23, 2017
    Dataset authored and provided by
    Max Mind
    Description

    Context

    This dataset is meant to be used with other datasets that have features like country and city but no latitude/longitude. It is simply a list of cities in the world. Being able to put cities on a map will help people tell their stories more effectively. Another way to think about it is that you can use this make more pretty graphs!

    Content

    Fields:

    • city
    • region
    • country
    • population
    • latitude
    • longitude

    Acknowledgements

    These data come from Maxmind.com and have not been altered. The original source can be found by clicking here

    Additionally, the Maxmind sharing license has been included.

    Inspiration

    I wanted to analyze a dataset and make a map, but I was only given a city name without any latitude or longotude coordinates. I found this dataset very helpful and I hoe you do too!

  10. Z

    Songdo Vision: Vehicle Annotations from High-Altitude BeV Drone Imagery in a...

    • data-staging.niaid.nih.gov
    • zenodo.org
    Updated Mar 17, 2025
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    Fonod, Robert; Cho, Haechan; Yeo, Hwasoo; Geroliminis, Nikolas (2025). Songdo Vision: Vehicle Annotations from High-Altitude BeV Drone Imagery in a Smart City [Dataset]. https://data-staging.niaid.nih.gov/resources?id=zenodo_13828407
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    Dataset updated
    Mar 17, 2025
    Dataset provided by
    Korea Advanced Institute of Science and Technology
    École Polytechnique Fédérale de Lausanne
    Authors
    Fonod, Robert; Cho, Haechan; Yeo, Hwasoo; Geroliminis, Nikolas
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Songdo-dong
    Description

    Overview

    The Songdo Vision dataset provides high-resolution (4K, 3840×2160 pixels) RGB images annotated with categorized axis-aligned bounding boxes (BBs) for vehicle detection from a high-altitude bird’s-eye view (BeV) perspective. Captured over Songdo International Business District, South Korea, this dataset consists of 5,419 annotated video frames, featuring approximately 300,000 vehicle instances categorized into four classes:

    Car (including vans and light-duty vehicles)

    Bus

    Truck

    Motorcycle

    This dataset can serve as a benchmark for aerial vehicle detection, supporting research and real-world applications in intelligent transportation systems, traffic monitoring, and aerial vision-based mobility analytics. It was developed in the context of a multi-drone experiment aimed at enhancing geo-referenced vehicle trajectory extraction.

    ⚠️ Important: If you use this dataset in your work, please cite the following reference [1]:

    Robert Fonod, Haechan Cho, Hwasoo Yeo, Nikolas Geroliminis (2025). Advanced computer vision for extracting georeferenced vehicle trajectories from drone imagery, arXiv preprint arXiv:2411.02136.

    (Note: This manuscript shall be replaced by the published version once available.)

    Motivation

    Publicly available datasets for aerial vehicle detection often exhibit limitations such as:

    Non-BeV perspectives with varying angles and distortions

    Inconsistent annotation quality, with loose or missing bounding boxes

    Lower-resolution imagery, reducing detection accuracy, particularly for smaller vehicles

    Lack of annotation detail, especially for motorcycles in dense urban scenes with complex backgrounds

    To address these challenges, Songdo Vision provides high-quality human-annotated bounding boxes, with machine learning assistance used to enhance efficiency and consistency. This ensures accurate and reliable ground truth for training and evaluating detection models.

    Dataset Composition

    The dataset is randomly split into training (80%) and test (20%) subsets:

    Subset Images Car Bus Truck Motorcycle Total Vehicles

    Train 4,335 195,539 7,030 11,779 2,963 217,311

    Test 1,084 49,508 1,759 3,052 805 55,124

    A subset of 5,274 frames was randomly sampled from drone video sequences, while an additional 145 frames were carefully selected to represent challenging cases, such as motorcycles at pedestrian crossings, in bicycle lanes, near traffic light poles, and around other distinctive road markers where they may blend into the urban environment.

    Data Collection

    The dataset was collected as part of a collaborative multi-drone experiment conducted by KAIST and EPFL in Songdo, South Korea, from October 4–7, 2022.

    A fleet of 10 drones monitored 20 busy intersections, executing advanced flight plans to optimize coverage.

    4K (3840×2160) RGB video footage was recorded at 29.97 FPS from altitudes of 140–150 meters.

    Each drone flew 10 sessions per day, covering peak morning and afternoon periods.

    The experiment resulted in 12TB of 4K raw video data.

    More details on the experimental setup and data processing pipeline are available in [1].

    Bounding Box Annotations & Formats

    Annotations were generated using a semi-automated object detection annotation process in Azure ML Studio, leveraging machine learning-assisted bounding box detection with human verification to ensure precision.

    Each annotated frame includes categorized, axis-aligned bounding boxes, stored in three widely-used formats:

    1. COCO JSON format

    Single annotation file per dataset subset (i.e., one for training, one for testing).

    Contains metadata such as image dimensions, bounding box coordinates, and class labels.

    Example snippet:

    { "images": [{"id": 1, "file_name": "0001.jpg", "width": 3840, "height": 2160}], "annotations": [{"id": 1, "image_id": 1, "category_id": 2, "bbox": [500, 600, 200, 50], "area": 10000, "iscrowd": 0}], "categories": [ {"id": 1, "name": "car"}, {"id": 2, "name": "bus"}, {"id": 3, "name": "truck"}, {"id": 4, "name": "motorcycle"} ] }

    1. YOLO TXT format

    One annotation file per image, following the format:

    Bounding box values are normalized to [0,1], with the origin at the top-left corner.

    Example snippet:

    0 0.52 0.63 0.10 0.05 # Car bounding box 2 0.25 0.40 0.15 0.08 # Truck bounding box

    1. Pascal VOC XML format

    One annotation file per image, structured in XML.

    Contains image properties and absolute pixel coordinates for each bounding box.

    Example snippet:

    0001.jpg 384021603

    car
    500600600650
    

    File Structure

    The dataset is provided as two compressed archives:

    1. Training Data (train.zip, 12.91 GB)

    train/ │── coco_annotations.json # COCO format │── images/ │ ├── 0001.jpg │ ├── ... │── labels/ │ ├── 0001.txt # YOLO format │ ├── 0001.xml # Pascal VOC format │ ├── ...

    1. Testing Data (test.zip, 3.22 GB)

    test/ │── coco_annotations.json │── images/ │ ├── 00027.jpg │ ├── ... │── labels/ │ ├── 00027.txt │ ├── 00027.xml │ ├── ...

    Additional Files

    README.md – Dataset documentation (this description)

    LICENSE.txt – Creative Commons Attribution 4.0 License

    names.txt – Class names (one per line)

    data.yaml – Example YOLO configuration file for training/testing

    Citation & Attribution

    Preferred Citation:

    If you use Songdo Vision for any purpose, whether in academic research, commercial applications, open-source projects, or benchmarking efforts, please cite our accompanying manuscript [1]:

    Robert Fonod, Haechan Cho, Hwasoo Yeo, Nikolas Geroliminis (2025). Advanced computer vision for extracting georeferenced vehicle trajectories from drone imagery, arXiv preprint arXiv:2411.02136.

    (Note: This manuscript shall be replaced by the published version once available.)

    Note: Although Zenodo automatically provides a formal dataset citation (shown below), we kindly request that you reference the manuscript as the primary source of this work.

    Dataset Citation (for archival purposes):

    Robert Fonod, Haechan Cho, Hwasoo Yeo, Nikolas Geroliminis (2025). Songdo Vision: Vehicle Annotations from High-Altitude BeV Drone Imagery in a Smart City (v1). Zenodo. DOI: 10.5281/zenodo.13828408.

  11. d

    Data from: Geospatial data for bedrock elevation and overburden thickness...

    • catalog.data.gov
    • data.usgs.gov
    Updated Oct 8, 2025
    + more versions
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    U.S. Geological Survey (2025). Geospatial data for bedrock elevation and overburden thickness maps of the Five Boroughs, New York City, New York [Dataset]. https://catalog.data.gov/dataset/geospatial-data-for-bedrock-elevation-and-overburden-thickness-maps-of-the-five-boroughs-n
    Explore at:
    Dataset updated
    Oct 8, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    New York
    Description

    Using a combination of public and proprietary historical construction test borings, recent exploration drilling, USGS observation wells, outcrops, and seismic measurements, a series of geospatial overlays for bedrock elevation and overburden thickness were created for the Five Boroughs of New York City, New York. Rasters were interpolated from a point elevation data set and refined using published and interpretive bedrock contours, and interpreted glacial valleys and faults. Contours for bedrock elevation were generated at 100-ft contour intervals and smoothed. This data release includes shapefiles containing the input point elevation features and output contours, and rasters of interpolated bedrock elevation and overburden thickness surfaces.

  12. n

    Alaska High Altitude Aerial Photography (AHAP) Program

    • access.earthdata.nasa.gov
    • cmr.earthdata.nasa.gov
    Updated Apr 20, 2017
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    (2017). Alaska High Altitude Aerial Photography (AHAP) Program [Dataset]. https://access.earthdata.nasa.gov/collections/C1214585044-SCIOPS
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    Dataset updated
    Apr 20, 2017
    Time period covered
    Jan 1, 1978 - Dec 31, 1986
    Area covered
    Description

    [From GeoData Center Home Page descriptions, "http://www.gi.alaska.edu/alaska-satellite-facility/geodata-center"]

     The GeoData Center is the browse facility for the state copy of the AHAP
     collection, which covers approximately 95% of the State of Alaska in 1:60,000
     color infrared (CIR) and 1:120,000 black and white (B&W) photography. The data
     reside in 10" film format. Approximately 70,000 frames of photography were
     acquired between 1978 and 1986.
    
  13. Cities of Pakistan with Coordinates

    • kaggle.com
    zip
    Updated Mar 16, 2021
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    Agha Abdul Rauf (2021). Cities of Pakistan with Coordinates [Dataset]. https://www.kaggle.com/datasets/aghabdurauf/cities-of-pakistan-with-coordinates
    Explore at:
    zip(3136 bytes)Available download formats
    Dataset updated
    Mar 16, 2021
    Authors
    Agha Abdul Rauf
    License

    https://creativecommons.org/publicdomain/zero/1.0/https://creativecommons.org/publicdomain/zero/1.0/

    Area covered
    Pakistan
    Description

    Dataset

    This dataset was created by Agha Abdul Rauf

    Released under CC0: Public Domain

    Contents

  14. C

    Elevation Benchmarks

    • chicago.gov
    • data.cityofchicago.org
    • +3more
    csv, xlsx, xml
    Updated Sep 29, 2011
    + more versions
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    City of Chicago (2011). Elevation Benchmarks [Dataset]. https://www.chicago.gov/city/en/depts/water/dataset/elevation_benchmarks.html
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    csv, xlsx, xmlAvailable download formats
    Dataset updated
    Sep 29, 2011
    Dataset authored and provided by
    City of Chicago
    Description

    The following dataset includes "Active Benchmarks," which are provided to facilitate the identification of City-managed standard benchmarks. Standard benchmarks are for public and private use in establishing a point in space. Note: The benchmarks are referenced to the Chicago City Datum = 0.00, (CCD = 579.88 feet above mean tide New York). The City of Chicago Department of Water Management’s (DWM) Topographic Benchmark is the source of the benchmark information contained in this online database. The information contained in the index card system was compiled by scanning the original cards, then transcribing some of this information to prepare a table and map. Over time, the DWM will contract services to field verify the data and update the index card system and this online database.This dataset was last updated September 2011. Coordinates are estimated. To view map, go to https://data.cityofchicago.org/Buildings/Elevation-Benchmarks-Map/kmt9-pg57 or for PDF map, go to http://cityofchicago.org/content/dam/city/depts/water/supp_info/Benchmarks/BMMap.pdf. Please read the Terms of Use: http://www.cityofchicago.org/city/en/narr/foia/data_disclaimer.html.

  15. e

    Elevations list of the city Osnabrück

    • data.europa.eu
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    Elevations list of the city Osnabrück [Dataset]. https://data.europa.eu/data/datasets/228659f0-45e9-4218-8ecb-c58a19fab26c?locale=en
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    Area covered
    Osnabrück
    Description

    The city of Osnabrück — Specialist Service Geodata — holds for planning and structural tasks its own high-altitude field, which was created by network compaction following the official “Deutsche Haupthöhennetz”. The original normal zero heights (NN heights) have now been transferred to the official height reference system heights above normal height zero (NHN heights). Excerpts from the height index including a map overview can be provided digitally (in PDF or TIFF format) or analogue as print output.

  16. o

    Homeland Security and Infrastructure US Cities

    • registry.opendata.aws
    Updated Sep 8, 2022
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    Hobu, Inc. (2022). Homeland Security and Infrastructure US Cities [Dataset]. https://registry.opendata.aws/hsip-lidar-us-cities/
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    Dataset updated
    Sep 8, 2022
    Dataset provided by
    <a href="https://hobu.co">Hobu, Inc.</a>
    Description

    The U.S. Cities elevation data collection program supported the US Department of Homeland Security Homeland Security and Infrastructure Program (HSIP). As part of the HSIP Program, there were 133+ U.S. cities that had imagery and LiDAR collected to provide the Homeland Security, Homeland Defense, and Emergency Preparedness, Response and Recovery (EPR&R) community with common operational, geospatially enabled baseline data needed to analyze threat, support critical infrastructure protection and expedite readiness, response and recovery in the event of a man-made or natural disaster. As a part of that, for some time, recurring LiDAR data was also being collected by a joint agreement of NGA and other federal agencies and the HIFLDS Working Group. The publicly released data excluded US Military Installation coverage, but it is provided in as is. These collects were acquired by contract using commercial collection companies. Some metadata information about the collection can be found at USGS at https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/Non_Standard_Contributed/NGA_US_Cities/Topeka_KS/NGA%20133%20US%20Cities%20Data%20Disclaimer%20and%20Explanation%20Readme.pdf

  17. o

    Geonames Cities with population > 5000

    • documentation-resources.opendatasoft.com
    csv, excel, geojson +1
    Updated Jan 4, 2021
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    (2021). Geonames Cities with population > 5000 [Dataset]. https://documentation-resources.opendatasoft.com/explore/dataset/doc-geonames-cities-5000/
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    geojson, excel, csv, jsonAvailable download formats
    Dataset updated
    Jan 4, 2021
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Extract From geonames files. The data represents populated places with a population > 5000 inhabitants.Table information:geonameid : integer id of record in geonames database name : name of geographical point (utf8) varchar(200) asciiname : name of geographical point in plain ascii characters, varchar(200) alternatenames : alternatenames, comma separated, ascii names automatically transliterated, convenience attribute from alternatename table, varchar(10000) latitude : latitude in decimal degrees (wgs84) longitude : longitude in decimal degrees (wgs84) feature class : see http://www.geonames.org/export/codes.html, char(1) feature code : see http://www.geonames.org/export/codes.html, varchar(10) country code : ISO-3166 2-letter country code, 2 characters cc2 : alternate country codes, comma separated, ISO-3166 2-letter country code, 200 characters admin1 code : fipscode (subject to change to iso code), see exceptions below, see file admin1Codes.txt for display names of this code; varchar(20) admin2 code : code for the second administrative division, a county in the US, see file admin2Codes.txt; varchar(80) admin3 code : code for third level administrative division, varchar(20) admin4 code : code for fourth level administrative division, varchar(20) population : bigint (8 byte int) elevation : in meters, integer dem : digital elevation model, srtm3 or gtopo30, average elevation of 3''x3'' (ca 90mx90m) or 30''x30'' (ca 900mx900m) area in meters, integer. srtm processed by cgiar/ciat. timezone : the iana timezone id (see file timeZone.txt) varchar(40) modification date : date of last modification in yyyy-MM-dd format

  18. H

    High Altitude Long Endurance (Pseudo Satellite) Report

    • archivemarketresearch.com
    doc, pdf, ppt
    Updated Aug 14, 2025
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    Archive Market Research (2025). High Altitude Long Endurance (Pseudo Satellite) Report [Dataset]. https://www.archivemarketresearch.com/reports/high-altitude-long-endurance-pseudo-satellite-358974
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    ppt, pdf, docAvailable download formats
    Dataset updated
    Aug 14, 2025
    Dataset authored and provided by
    Archive Market Research
    License

    https://www.archivemarketresearch.com/privacy-policyhttps://www.archivemarketresearch.com/privacy-policy

    Time period covered
    2025 - 2033
    Area covered
    Global
    Variables measured
    Market Size
    Description

    The High Altitude Long Endurance (HALE) pseudo-satellite market is experiencing robust growth, driven by increasing demand for persistent surveillance, communication relay, and atmospheric research applications. The market size in 2025 is estimated at $2.5 billion, exhibiting a Compound Annual Growth Rate (CAGR) of 15% from 2025 to 2033. This significant expansion is fueled by advancements in unmanned aerial vehicle (UAV) technology, miniaturization of sensors and payloads, and the growing need for cost-effective alternatives to traditional satellites. Key drivers include escalating security concerns, the rise of smart cities requiring enhanced monitoring capabilities, and the increasing adoption of HALE systems in diverse sectors like telecommunications, environmental monitoring, and disaster response. Government investments in defense and national security further bolster market growth. While the market enjoys significant momentum, challenges remain. Regulatory hurdles surrounding airspace management and international protocols for UAV operations present considerable restraints. Furthermore, technological limitations in power generation and endurance, along with the high initial investment costs associated with HALE system development and deployment, could hinder market penetration to some degree. However, ongoing technological innovations focused on improving battery life, solar power integration, and reducing operational complexities are expected to mitigate these challenges over the forecast period. The market segmentation reflects a diverse range of applications and technological approaches, with key players like Airbus, Lockheed Martin, and Boeing actively shaping industry dynamics through continuous R&D and strategic partnerships. The regional market is geographically dispersed, with North America and Europe currently holding the largest market share, although emerging economies in Asia-Pacific are expected to witness accelerated growth in the coming years.

  19. D

    High-Altitude Charger Derating Strategies Market Research Report 2033

    • dataintelo.com
    csv, pdf, pptx
    Updated Oct 1, 2025
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    Dataintelo (2025). High-Altitude Charger Derating Strategies Market Research Report 2033 [Dataset]. https://dataintelo.com/report/high-altitude-charger-derating-strategies-market
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    csv, pdf, pptxAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Dataintelo
    License

    https://dataintelo.com/privacy-and-policyhttps://dataintelo.com/privacy-and-policy

    Time period covered
    2024 - 2032
    Area covered
    Global
    Description

    High-Altitude Charger Derating Strategies Market Outlook




    According to our latest research, the global High-Altitude Charger Derating Strategies market size reached USD 1.47 billion in 2024, and is anticipated to grow at a robust CAGR of 8.3% from 2025 to 2033, reaching approximately USD 2.93 billion by 2033. This growth is primarily driven by the rapid expansion of electric vehicle (EV) infrastructure, increasing demand for reliable power electronics in high-altitude regions, and stringent regulatory standards for charger safety and efficiency.




    One of the primary growth factors propelling the High-Altitude Charger Derating Strategies market is the global surge in electric vehicle adoption, particularly in regions with challenging geographical terrains. As governments and private enterprises invest in EV charging infrastructure, the need for chargers that can operate efficiently at high altitudes—where reduced air density can significantly impact cooling and performance—has become increasingly critical. This has led to a heightened focus on derating strategies, ensuring chargers maintain reliability and safety standards even in adverse atmospheric conditions. Furthermore, advancements in power electronics and thermal management technologies are enabling manufacturers to design chargers specifically optimized for high-altitude use, thereby expanding the market potential.




    Another significant driver is the growing demand for industrial and commercial applications of high-power chargers in mountainous and high-elevation regions. Industries such as mining, telecommunications, and aerospace, which frequently operate in high-altitude environments, require robust charging solutions to support a variety of equipment, from heavy-duty vehicles to sensitive electronic devices. The implementation of derating strategies is essential in these contexts to prevent overheating, electrical failures, and reduced charger lifespan. Additionally, as renewable energy projects such as wind and solar farms are increasingly sited in high-altitude locations, the need for reliable charging infrastructure that can withstand these unique environmental challenges continues to rise, further bolstering market growth.




    Stringent regulatory frameworks and international standards for charger safety and performance are also contributing to the expansion of the High-Altitude Charger Derating Strategies market. Regulatory bodies across North America, Europe, and Asia Pacific have introduced guidelines that require derating considerations for chargers installed above certain elevations, ensuring that end-users receive products that meet or exceed safety and efficiency benchmarks. This regulatory emphasis is driving innovation among manufacturers, encouraging the development of chargers with advanced derating algorithms and adaptive thermal management features. As a result, companies that can demonstrate compliance with these standards are gaining a competitive edge, fostering further growth within the market.




    From a regional perspective, Asia Pacific currently leads the global market, accounting for the largest revenue share in 2024, followed by North America and Europe. The dominance of Asia Pacific is attributed to the region's rapid urbanization, extensive infrastructure development in mountainous areas, and the aggressive rollout of EV charging networks in countries like China and India. North America, with its significant investments in clean energy and EV adoption, is also witnessing robust growth, particularly in states with high-altitude cities such as Colorado and Utah. Meanwhile, Europe is characterized by a strong regulatory focus on environmental sustainability and technological innovation, further supporting the adoption of high-altitude charger derating strategies. The Middle East & Africa and Latin America, though smaller in market size, are expected to experience accelerated growth during the forecast period as infrastructure projects and EV penetration expand into high-altitude regions.



    Product Type Analysis




    The Product Type segment in the High-Altitude Charger Derating Strategies market encompasses AC Chargers, DC Chargers, Portable Chargers, and Others. AC Chargers remain a fundamental component, particularly for residential and commercial applications where grid compatibility and cost-effectiveness are essential. These chargers are widely deployed in urban and suburban high-altitude areas, be

  20. w

    Dataset of country, latitude, longitude and population of cities in the...

    • workwithdata.com
    Updated Nov 7, 2024
    + more versions
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    Work With Data (2024). Dataset of country, latitude, longitude and population of cities in the United States [Dataset]. https://www.workwithdata.com/datasets/cities?col=city%2Ccountry%2Clatitude%2Clongitude%2Cpopulation&f=1&fcol0=country&fop0=%3D&fval0=United+States
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    Dataset updated
    Nov 7, 2024
    Dataset authored and provided by
    Work With Data
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    United States
    Description

    This dataset is about cities in the United States. It has 4,171 rows. It features 5 columns: country, population, latitude, and longitude.

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Statista (2025). Cities with the highest altitudes in the world [Dataset]. https://www.statista.com/statistics/509341/highest-cities-in-the-world/
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Cities with the highest altitudes in the world

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Dataset updated
Nov 28, 2025
Dataset authored and provided by
Statistahttp://statista.com/
Time period covered
2020
Area covered
World
Description

The highest city in the world with a population of more than one million is La Paz. The Capital of Bolivia sits ***** meters above sea level, and is more than 1,000 meters higher than the second-ranked city, Quito. La Paz is also higher than Mt. Fuji in Japan, which has a height of 3,776 meters. Many of the world's largest cities are located in South America. The only city in North America that makes the top 20 list is Denver, Colorado, which has an altitude of ***** meters.

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