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HFR

## Overview

HFR is a dataset for object detection tasks - it contains Target annotations for 880 images.

## Getting Started

You can download this dataset for use within your own projects, or fork it into a workspace on Roboflow to create your own model.

  ## License

  This dataset is available under the [CC BY 4.0 license](https://creativecommons.org/licenses/CC BY 4.0).

HF Radar data in the gulf of Trieste

This collection is composed of Cassini RPWS Quasi Thermal Noise (QTN) data set contains thermal plasma parameters derived by QTN spectroscopy analysis applied on data acquired with the High Frequency Receiver (HFR) during the perikrones of the entire mission.

Sea Currents field (totals) from HFR data. Radial velocity measurements are obtained from individual stations located at S.Juliao and Cabo Espichel , which hourly data are combined to produce Lisbon data.

This data set contains the CASSINI RPWS HFR raw data in telemetry values. It is composed of hourly binary files.

As a part of the broader Harvard Forest Flora project (see data set HF116), we prepared a database of all specimens located in the Harvard Forest herbarium.

Highfield Resources reported AUD-4124080 in EBITDA for its fiscal semester ending in June of 2024. Data for Highfield Resources | HFR - Ebitda including historical, tables and charts were last updated by Trading Economics this last June in 2025.

Scientific data provenance is the information required to document the history of an item of data, including how it was created and how it was transformed. Data provenance has great potential to improve the transparency, reliability, and reproducibility of scientific results. However it has been little used to date by domain scientists because most systems that collect provenance require scientists to learn specialized software tools and jargon. This project is developing tools that allow scientists to collect, visualize, and query provenance directly from the R statistical language. The first tool (RDataTracker) is a library of R functions that can be downloaded and installed as an R package. RDataTracker allows the scientist to collect data provenance during an R console session or while executing an R script. The resulting provenance is stored on the scientist's computer as a DDG (data derivation graph) file. The second tool (DDG Explorer) is a stand-alone Java program that can be downloaded and run to visualize, store, and query DDGs. The third tool is an R script (DDGCheckpoint.R) may be used with RDataTRacker to create and restore checkpoints that store the R environment and user files. Documentation for all tools is included with the RDataTracker package or may be downloaded separately.

This is a database containing all the HFR atomic data needed to compute the opacity of all neutral to trebly-ionized elements between Ca (Z=20) and Lr (Z=103) in the context of kilonova emission following neutron star mergers, as well as expansion and line-binned opacity tables for a grid of conditions, namely a time t = 1, 2, 3, 4, 5, 6, 7 days after the merger ; an ejecta density \rho = 1E-17, 1E-16, 1E-15, 1E-14, 1E-13 g/cm^3 ; and an ejecta temperature T = 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000 K. A table of Planck mean expansion opacities for all the elements is also provided for this grid of conditions.

The details of the computations can be found in our paper: Deprince J. et al., "Kilonova ejecta opacity inferred from new large-scale HFR atomic calculations in all elements between Ca (Z=20) and Lr (Z=103)", in press (Astronomy & Astrophysics, 2025); arXiv:2412.16688 [astro-ph.HE]. The present data have been obtained in tight collaboration between the University of Mons (UMONS) and the University of Brussels (ULB), in Belgium.

Note that the present version (v2) replaces version 1 (v1) that is obsolete. In this new version, we have corrected an error in the previous data for Pb (Z=82).

Description of the files:

1) Atomic data:

• atomic-data-lanthanides includes the atomic data for all lanthanides ;
• atomic-data-actinides includes the atomic data for all actinides ;
• atomic-data-other includes the atomic data for all other elements from Z=20.

All the three compressed files include two types of files, namely outglv and outggf files:

• outglv files: energy level lists. The first column gives the value of the energy level E_i (in 1000 cm^{-1}), and the second columns indicates the corresponding value of the total angular momentum J_i ;
• outggf files: transition lists. The three columns gives, for each line, the transition wavelengths (in A), the energy of the transition lower level E_i (in 1000 cm^{-1}), and the corresponding oscillator strength, gf.

2) Opacity tables :

• exp-opacity-table contains, for each element, the expansion opacity as a function of the wavelength for the above-mentionned grid of conditions. The first column gives the wavelength at which the opacity is computed, and the following ones correspond to the expansion opacities for the conditions (t,\rho,T) mentioned in the first three rows ;
• lb-opacity-table contains, for each element, the line-binned opacity as a function of the wavelength for the above-mentionned grid of conditions. The first column gives the wavelength at which the opacity is computed, and the following ones correspond to the line-binned opacities for the conditions (t,\rho,T) mentioned in the first three rows ;
• table_planck_opacity.txt is a table of Planck mean expansion opacities of all element for the above-mentionned grid of conditions. Each line gives, for a given element labeled by its atomic number Z in the first column, the Planck mean opacities for the conditions indicated in the first three rows.

Surface ocean velocities estimated from High Frequency (HF)-Radar are representative of the upper 2.4 meters of the ocean. The main objective of near-real time processing is to produce the best product from available data at the time of processing. Radial velocity measurements are obtained from individual radar sites through the U.S. HF-Radar Network. Hourly radial data are processed by unweighted least squares on a 6km resolution grid of the Puerto Rico and the Virgin Islands to produce near real-time surface current maps. acknowledgement=HFR-US-PuertoRicoVirginIslands HF Radar Network has been established within the Integrated Ocean Observing System (IOOS) program. area=Puerto Rico and Virgin Islands calibration_link=CDDO: hfrnet.administrators@sio.ucsd.edu; FARO: hfrnet.administrators@sio.ucsd.edu; FURA: hfrnet.administrators@sio.ucsd.edu; MABO: hfrnet.administrators@sio.ucsd.edu; PYFC: hfrnet.administrators@sio.ucsd.edu calibration_type=CDDO: APM; FARO: APM; FURA: APM; MABO: APM; PYFC: APM cdm_data_type=Grid citation=These data were collected and made freely available by the Copernicus project and the programs that contribute to it. Data collected and processed by CORDC. comment=Total velocities are derived using least square fit that maps radial velocities measured from individual sites onto a cartesian grid. The final product is a map of the horizontal components of the ocean currents on a regular grid in the area of overlap of two or more radar stations. contact=euhfrnode@azti.es cmems-service@ifremer.fr contributor_email=hfrnet.administrators@sio.ucsd.edu; hfrnet.administrators@sio.ucsd.edu; hfrnet.administrators@sio.ucsd.edu contributor_name=Lisa Hazard; Hugh Roarty; Mark Otero contributor_role=HFR expert; HFR expert; HFR expert Conventions=CF-1.6 Copernicus-InSituTAC-FormatManual-1.41 Copernicus-InSituTAC-SRD-1.5 Copernicus-InSituTAC-ParametersList-3.2.0, COARDS, ACDD-1.3 data_assembly_center=European HFR Node data_character_set=utf8 data_language=eng data_mode=R data_type=HF radar total data date_update=2021-08-14T10:48:25Z distribution_statement=These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data. DoA_estimation_method=CDDO: Direction Finding; FARO: Direction Finding; FURA: Direction Finding; MABO: Direction Finding; PYFC: Direction Finding Easternmost_Easting=-61.0242 feature_type=surface format_version=1.4 geospatial_lat_max=21.99766 geospatial_lat_min=14.5 geospatial_lat_resolution=0.053939999999999995 geospatial_lat_units=degrees_north geospatial_lon_max=-61.0242 geospatial_lon_min=-70.5 geospatial_lon_resolution=0.05574 geospatial_lon_units=degrees_east grid_resolution=6 history=2021-08-11T00:00:00Z data collected. 2021-08-14T10:48:25Z netCDF file created and sent to European HFR Node id=HFR-US-PuertoRicoVirginIslands-Total_2021-08-11T00:00:00Z infoUrl=http://eurogoos.eu/high-frequency-radar-task-team/ institution=CORDC - Coastal Observing Research and Development Center institution_edmo_code=3790 institution_references=https://cordc.ucsd.edu/ keywords_vocabulary=GCMD Science Keywords last_calibration_date=CDDO: N/A; FARO: N/A; FURA: N/A; MABO: N/A; PYFC: N/A metadata_character_set=utf8 metadata_contact=lorenzo.corgnati@sp.ismar.cnr.it metadata_date_stamp=2021-08-14T10:48:25Z metadata_language=eng naming_authority=Copernicus Marine In Situ netcdf_format=netcdf4_classic netcdf_version=netCDF-4 classic model network=HFR_US_PuertoRicoVirginIslands Northernmost_Northing=21.99766 platform_code=HFR-US-PuertoRicoVirginIslands-Total platform_name=HFR-US-PuertoRicoVirginIslands-Total processing_level=3B project=Integrated Ocean Observing System (IOOS) reference_system=EPSG:4806 references=http://marine.copernicus.eu http://www.marineinsitu.eu http://www.marineinsitu.eu/wp-content/uploads/2018/02/HFR_Data_Model_Reference_Card_v1.pdf sensor=Codar site_code=HFR-US-PuertoRicoVirginIslands software_name=HFR_Node_Centralized_Processing software_version=v2.2 source=coastal structure source_platform_category_code=17 sourceUrl=(local files) Southernmost_Northing=14.5 standard_name_vocabulary=CF Standard Name Table v70 testOutOfDate=now-2day time_coverage_duration=PT1H time_coverage_end=2021-08-14T05:00:00Z time_coverage_resolution=PT1H time_coverage_start=2020-04-08T00:30:00Z topic_category=oceans update_interval=void Westernmost_Easting=-70.5

Puerto Morelos, Mexico(UASA) - Ideal - Long Range Radial Currents. Radial Vectors quality controlled using HFRadarPyPython toolbox

Customs records of are available for HFR INT FURNITURE MANUFACTURER CO L.. Learn about its Importer, supply capabilities and the countries to which it supplies goods

Highfield Resources stock price, live market quote, shares value, historical data, intraday chart, earnings per share and news.

Highfield Resources reported AUD-5039940 in Operating Profit for its fiscal semester ending in June of 2024. Data for Highfield Resources | HFR - Operating Profit including historical, tables and charts were last updated by Trading Economics this last June in 2025.

Highfield Resources reported AUD43.14M in Market Capitalization this May of 2025, considering the latest stock price and the number of outstanding shares.Data for Highfield Resources | HFR - Market Capitalization including historical, tables and charts were last updated by Trading Economics this last June in 2025.

We conducted a floristic inventory of Harvard Forest, in order to: (1) document the current vascular flora of Harvard Forest; (2) evaluate the extent to which the flora has changed over the past century.

Customs records of are available for HFR INTERNATIONAL MANUFACTURER HK LTD. Learn about its Importer, supply capabilities and the countries to which it supplies goods

Highfield Resources reported AUD0 in Loan Capital for its fiscal semester ending in June of 2024. Data for Highfield Resources | HFR - Loan Capital including historical, tables and charts were last updated by Trading Economics this last May in 2025.

Surface current data measured by the CNR-ISMAR HF radar network are made available in graphical format for the last 48 hours and in real time and delayed mode via a THREDDS catalog which provides metadata and data access. The web site gives information on HF radar technology, sites position and operational parameters, and links to the THREDDS catalog. The catalog offers different remote-data-access protocols such as Open-source Project for a Network Data Access Protocol (OpenDaP), Web Coverage Service (WCS), Web Map Service (WMS) (OGS standards), as well as pure HTTP or NetCDF-Subsetter. They allow for metadata interrogation and data download (even sub-setting the dataset in terms of time and space) while embedded clients, such as GODIVA2, NetCDF-JavaToolsUI and Integrated Data Viewer, grant real-time data visualization directly via browser and allow for navigating within the plotted maps, saving images, exporting-importing on Google Earth, generating animations in selected time intervals. The data on the THREDDS catalog are organized in two folders, collecting the hourly current files of the last five days and grouping all the historical data. The two folders are accessible both in aggregated and in non-aggregated configuration.

The data set consists of maps of radial and total velocity of the sea water surface current collected by the HF radars within the Italian Coastal Radar Network established in the framework of the Italian flagship project RITMARE. Surface ocean velocities estimated by HF Radar are representative of the upper 0.3-2.5 meters of the ocean. The radar sites are operated according to Quality Assessment procedures and data are processed for Quality Control. Data access tools are compliant to Open Geospatial Consortium (OGC), Climate and Forecast (CF) convention and INSPIRE directive. The use of netCDF format allows an easy implementation of all the open source services developed by UNIDATA.