Canadian quality-controlled Integrated Science Data Management (ISDM, formerly MEDS) drifting (and some moored) buoy data, used as input for International Comprehensive Ocean-Atmosphere Data Set (ICOADS). Data from drifters with deep drogues [http://www.meds-sdmm.dfo-mpo.gc.ca/isdm-gdsi/drib-bder/kiel/kiel-eng.htm], collected by the Institut fur Meereskunde, at the University of Kiel from 1980 to 1996, are also archived in this dataset.
The 1986 Ouachita Lithospheric Seismology Experiment consisted of a 200 km seismic profile with 793 recording sites spaced approximately 250 m apart into which 29 shots were fired. The experiment was conducted in three phases or deployments. Deployment 1 consisted of 400 seismic group recorders (SGR) deployed on the northern half of the profile (see report). Strings of 8 hz natural frequency geophones deployed in a single location were attached to the SGRs. Deployment 1A consisted of SGRs occupying the 120 northernmost stations on the line. Deployment 2 consisted of 400 SGR deployed on the southern half of the line. The experiment took place in May, 1986.
The Global Energy and Water Cycle Experiment (GEWEX) Continental-scale International Project (GCIP) Large Scale Area-North West (LSA-NW) Enhanced Annual Observing Period 2000 (EAOP-00) takes place in the Missouri River basin as a data collection effort in an LSA of the entire Mississippi River basin. The Missouri River basin provides a number of watershed areas that are potentially useful for focused hydrologic studies. The LSA-NW EAOP-00 data set constitutes the first GCIP data set within the LSA-NW which is the final focused region during the GCIP five year Enhanced Observing Period (EOP).
Abstract: Sediment cores were collected by SCUBA divers during the austral spring between September and November each year from 2002 to 2014 in McMurdo Sound, Antarctica. Samples were analyzed for grainsize, carbon, and nitrogen.
Related datasets: McMurdo epifauna: https://www.bco-dmo.org//dataset/745874 McMurdo epifauna species list: https://www.bco-dmo.org//dataset/746999
Acquisition Description: Samples were collected by SCUBA divers during the austral spring between September and November each year. Organisms identified in colocated images can be found in the dataset "McMurdo epifauna" https://www.bco-dmo.org//dataset/745874.
Two 4 cm diameter, 5 cm deep cores were collected, one for grainsize analysis which was refrigerated until processing, and one for carbon and nitrogen analysis that was frozen until analysis. Sediment grainsize analyses were carried out with a Beckman-Coulter LS 13 320 laser particle size analyzer attached to an aqueous module equipped with a pump and a built-in ultrasound unit. The measured size distributions were analyzed from 0.04 µm to 2 mm. Measurements of such a wide particle size range are possible because the particle sizer is composed of two units: a laser beam for conventional (Fraunhofer) diffraction (from 0.4 µm to 2 mm) and a polarized intensity differential scatter (PIDS) unit, which measures particles based on the Mie theory of light scattering (0.04 µm; Beckman Coulter Inc., 2003). The sediment samples were dispersed in de-ionized water, and increasing amounts of the sediment solution were added to the aqueous module of the particle sizer until obscuration values of 8%–12% and PIDS obscuration values of 48%–52% were obtained. Data interpolation and statistical analyses were obtained with the laser particle sizer proprietary software (Beckman Coulter Inc., 2003). Because all samples analyzed tend to log-normal grain size distributions in the 0.04 µm to 2 mm spectrum, geometric rather than arithmetic statistics were applied to the values obtained by the logarithmically spaced size channels of the particle sizer. For total organic carbon and nitrogen analysis, frozen samples were thawed at room temperature, stirred, and approximately 5 g equivalent dry weight subsample treated with 5-10 ml 0.5-1.0 M reagent grade H2SO4 as needed to remove all inorganic carbon. Samples were then dried at 60-70°C, visually inspected to ensure complete removal of any carbonate shell fragments, and homogenized in a ball-mill. A modification of the high temperature combustion method, utilizing a Wheatstone bridge current differential, was used in a 440 Elemental Analyzer (Control Equipment Co.). Combustion was at less than 800°C, below the CaCO3 decomposition temperature. The manufacturers-suggested procedures were followed on duplicate or triplicate 5-10 mg aliquots, with sample variance greater than 10% leading to re-homogenizing and re-running analysis. Calibration was with known standards using Acetanilide or L-Cystine every 20-30 machine sample runs, with ±2% acceptable limits, and detection limits were 0.2 µg/mg carbon and 0.01 µg/mg nitrogen, dry weight. Quality control was maintained by analysis of National Research Council of Canada Marine Sediment Reference Material BCSS-1 at the beginning and end of each sample analysis set. All analyzed values were within the suggested criteria of ±0.09% carbon, ±0.008% nitrogen. NA values indicate data not available. ND indicates Not Detected.
Processing Description BCO-DMO Data Manager Processing Notes: * added a conventional header with dataset name, PI name, version date * modified parameter names to conform with BCO-DMO naming conventions * data transposed (rows to columns) * latitude and longitude changed from degrees decimal minutes to decimal degrees due to unsupported character restrictions in the bco-dmo system. * blank values changed to NA for not available because any blank values imported into the BCO-DMO system would be changed to "nd" meaning "no data" and would possibly not be distinguishable from data submitter's code for not detectable "ND."
A comprehensive review of seabed environmental surveys has been commissioned by UKOOA to document and analyse data collected from offshore environmental surveys carried out on the behalf of UK North Sea offshore oil operators. The purpose of these environmental surveys is to monitor the seabed in the vicinity of offshore operations with the aim of detecting environmental impact. It is estimated that some 520 seabed surveys were carried out between 1975 and 1998, covering work carried out by approximately 29 environmental monitoring contractors, government agencies and universities. 472 reports have been located, examined and listed in the database.
The UKOOA seabed environmental review was carried out in three phases. Phase 1 consisted of the compilation of an inventory of surveys carried out in the UK sector. Phase 2 involved the production of database files containing detailed biological, chemical and locational data. Phase 3 examines the extent of contamination from offshore E and P activities and impacts on the biota, and will attempt to determine any large-scale trends over wider geographical areas. The database files were exported to the NBN gateway in October 2004 - note that a new version of the database is now available. This involved a fair amount of data cleaning due to the range of quality of the data that had been compiled. There were 203945 records exported to the NBN gateway.
Size reference: 181715 records
[Source: The information provided in the summary was extracted from the MarBEF Data System at "http://www.marbef.org/data/eurobisproviders.php"]
A Reduced Space Optimal Interpolation procedure has been applied to the global sea level pressure (SLP) record from the Comprehensive Ocean Atmosphere Data Set (COADS) averaged on a 4x4 degree grid. The SLP anomalies are with respect to the climatological annual cycle estimated from COADS data for the period 1951-1980. The data are presented as a monthly climatology.
Additional Kaplan SLP data include: - Optimal Interpolation 1854-1992 - Projected SLP anomalies based on linear best fit of the EOF patterns to the data 1854-1992 - Kaplan RF and KF Analysis errors and estimates of SLP 1854-1992
Forest Ecosystem Dynamics (FED) Project Spatial Data Archive: Edinburg Township Forest Map
The Biospheric Sciences Branch (formerly Earth Resources Branch) within the Laboratory for Terrestrial Physics at NASA's Goddard Space Flight Center and associated University investigators are involved in a research program entitled Forest Ecosystem Dynamics (FED) which is fundamentally concerned with vegetation change of forest ecosystems at local to regional spatial scales (100 to 10,000 meters) and temporal scales ranging from monthly to decadal periods (10 to 100 years). The nature and extent of the impacts of these changes, as well as the feedbacks to global climate, may be addressed through modeling the interactions of the vegetation, soil, and energy components of the boreal ecosystem.
The Howland Forest research site lies within the Northern Experimental Forest of International Paper. The natural stands in this boreal-northern hardwood transitional forest consist of spruce-hemlock-fir, aspen-birch, and hemlock-hardwood mixtures. The topography of the region varies from flat to gently rolling, with a maximum elevation change of less than 68 m within 10 km. Due to the region's glacial history, soil drainage classes within a small area may vary widely, from well drained to poorly drained. Consequently, an elaborate patchwork of forest communities has developed, supporting exceptional local species diversity.
This data layer contains forest polygons with information on cover type, volume, and crown closure for both the forest overstory and understory for the Township of Edinburg located in Penobscot County, Maine. The map was digitized, projected and differentially corrected using Global Positioning System points. Forest types were determined by delineation from color infrared photographs.
Note that the USGS records show that the orthophotoquads from which the data were digitized are in the Transverse Mercator projection. The printed map grid on both Howland and Edinburg maps is in the Universal Transverse Mercator projection. So, although the Edinburg map states that base map and control are from a Polyconic projection, (the Howland does not mention projection) the original base maps were assumed to be in the Transverse Mercator.
Information about the FED project and other datasets can be found at the FED Home Page: "https://forest.gsfc.nasa.gov/".
Long term monthly mean winds which Sadler derived from his collection of aircraft data (which we have in DS365.0. [https://rda.ucar.edu/datasets/ds365.0/]) and average rawinsonde data. The aircraft data were obtained from two sources: operational GTS reports collected in Honolulu and the FHWF; and aircraft logs from many routes which often were not reported over the GTS. The aircraft winds were summarized for each month in 5-degree latitude-longitude squares. The average monthly rawinsonde data were then combined with these in manual analyses of streamlines and isotachs. The 2.5- degree grids of wind speed and direction were manually read from these.
Unless you have a special interest in this dataset, DSS recommends that you use one of our reanalysis datasets, such as ds090.2 [https://rda.ucar.edu/datasets/ds090.2/]. That's because those are based on a more complete collection of observations, improved analysis methods, and are provided in a common modern format (GRIB).
The HMAP database (http://www.hull.ac.uk/hmap) is an open access facility that currently comprises time series of commercial catches covering the period 1611-2000. It is a growing resource and extends more that 240,000 records and more than 100 species. Data are mostly recovered from archives, tax records, custom records or surveys. The facility includes a web guide to the database (the Data Directory) and a web library of dataset downloads (the Data Library), while users can create customized datasets through the HMAP Portal, which is an interactive facility for searching the database. A significant proportion of these holdings are currently available through OBIS. HMAP is a distributed data contributor and the constituent datasets have been mapped to the OBIS schema using DiGIR since 2004.
The HMAP program (http://www.hmapcoml.org) is the historical component of the Census of Marine Life (CoML). It is a multidisciplinary, collaborative project which aims to enhance knowledge and understanding of how and why the diversity, distribution and abundance of marine life in the world's oceans changes over the long term. The HMAP program is currently composed of 9 datasets, 3 of which focus on trawl records from Southeast Australia, one on world whaling, 2 on Northwest Atlantic, and 3 on catch data from Norwegian and North and Baltic seas.
This dataset represents spatial aggregates of a variable number of granules of the MODIS Ocean standard level 2 products that cover the Gulf of Maine. Each product is an 8-day composite, which was derived as the average data value for the 8-day period. If data quality is poor on particular days, the average was derived only from those days having good data. Files containing the number of days used to produce the averages (counts) are included.
The University of New Hampshire's Coastal Observing Center (&http://cooa.sr.unh.edu&) has created this MODIS product from daily chlorophyll-a and MOD28L2 Sea Surface Temperature level 2 granules covering the Northeastern Coastal United States. This MODIS data is provided as 8-day averages for the Gulf of Maine region in the Lambert Conformal Conic projection. UNH has resampled to 1.25 km grid and reprojected the granule data using the SeaDAS software (&http://seadas.gsfc.nasa.gov/&), to make a product which can be spatially subset within the Search and Retrieve data ordering tool
These regional products allow COOA users to subset MODIS 8-day SST and chlorophyll-a data across tile boundaries and to customize the spatial region of interest using an on-line GUI interface.
Data are also provided in HDF-EOS, NetCDF, and a generic binary format (BSQ) with detailed header information, which can be read into most image or data processing applications.
Please see: http://ladsweb.nascom.nasa.gov/ to learn more about the MOD28L2 input data and http://oceancolor.gsfc.nasa.gov/ for MODIS Ocean Color products. Data Set Characteristics: Output format: HDF-EOS, NetCDF, ASCII, BSQ with header Logical Data Holdings: Chlorophyll-a: 32 bit real number Sea Surface Temperature: 32 bit real number Counts chlorophyll-a: byte integer Counts Sea Surface temperature: byte integer
Aircraft and rawinsonde (300, 250, and 200mb) observations over the tropical Pacific were analyzed to produce monthly grids of wind at approximately 250mb for the periods January 1966 to September 1968 and August 1970 to December 1973. The grid has a resolution of 2.5 degrees and runs from 30S to 45N latitude and 75E to 70W longitude.
The Madagascar National Oceanographic Data Centre is attached to the University of Toliara. Some of the research achievements of the Oceanographic Data Centre are: a project for the protection of coastal reefs in south-western Madagascar; a marine biodiversity assessment in the same coastal area; a socio-economic investigation of traditional fishing practices; and bio-ecological surveys to facilitate the development of a sustainable marine park in the Masoala area far away on Madagascar’s northeast coast.
This dataset of dinoflagellates has been collected at three stations in Toliara Bay, and it currently consists of 1297 records of 15 families.
Some selected data, managed by a variety of people and projects within the Climatic Research Unit (CRU), University of East Anglia.
SILO (Scientific Information for Land Owners) is a database of Australian climate data from 1889 (current to yesterday). It provides daily datasets for a range of climate variables in ready-to-use formats suitable for research and climate applications. SILO products provide national coverage with interpolated infills for missing data, which allows you to focus on your research or model development without the burden of data preparation.
SILO is hosted by the Science and Technology Division of the Queensland Government's Department of Environment and Science (DES). The datasets are constructed from observational data obtained from the Australian Bureau of Meteorology.
These NCEP FNL (Final) Operational Global Analysis data are on pairs of 2.5x2.5 degree hemispheric grids every twelve hours. This product was from the Global Forecast System (GFS) that was run operationally in near-real time at NCEP. DSS prepared this surface subset from ds082.0. The analyses are available on the surface, at 1000mb and a boundary layer. Parameters include surface pressure, sea level pressure, geopotential height, temperature, sea surface temperature, soil temperature, water content of soil, ice cover, water equivalent of snow depth, relative humidity, specific humidity, u- and v-wind components, minimum temperature, maximum temperature and land-sea mask. More information is available [https://rda.ucar.edu/datasets/ds083.1/more.html]
The dataset provides the turbidity in the sea water measured by a backscattering meter.
The Japan Meteorological Agency (JMA) conducted JRA-55, the second Japanese global atmospheric reanalysis project. It covers 55 years, extending back to 1958, coinciding with the establishment of the global radiosonde observing system. Compared to its predecessor, JRA-25, JRA-55 is based on a new data assimilation and prediction system (DA) that improves many deficiencies found in the first Japanese reanalysis. These improvements have come about by implementing higher spatial resolution (TL319L60), a new radiation scheme, four-dimensional variational data assimilation (4D-Var) with Variational Bias Correction (VarBC) for satellite radiances, and introduction of greenhouse gases with time varying concentrations.
The entire JRA-55 production was completed in 2013, and thereafter will be continued on a real time basis. Specific early results of quality assessment of JRA-55 indicate that a large temperature bias in the lower stratosphere has been significantly reduced compared to JRA-25 through a combination of the new radiation scheme and application of VarBC (which also reduces unrealistic temperature variations). In addition, a dry land surface anomaly in the Amazon basin has been mitigated, and overall forecast scores are much improved over JRA-25.
Most of the observational data employed in JRA-55 are those used in JRA-25. Additionally, newly reprocessed METEOSAT and GMS data were supplied by EUMETSAT and MSC/JMA respectively. Snow depth data over the United States, Russia and Mongolia were supplied by UCAR, RIHMI and IMH respectively. The Data Support Section (DSS) at NCAR has processed the 1.25 degree version of JRA-55 with the RDA (Research Data Archive) archiving and metadata system. The model resolution data has also been acquired, archived and processed as well, including transformation of the TL319L60 grid to a regular latitude-longitude Gaussian grid (320 latitudes by 640 longitudes, nominally 0.5625 degree). All RDA JRA-55 data is available for internet download, including complete subsetting and data format conversion services.
ADCP velocity profiles were obtained with 3m vertical resolution through a 300 kHz Workhorse ADCP unit mounted in a upward looking configuration on one side of the GEOSTAR station free from any possible obstacle. The record lasted one year with an hourly sampling rate providing current data of water column above the station.
The dataset contains sea bottom Conductivity, Temperature and Pressure data acquired by a SBE 16 plus device installed on SN4 station.
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Canadian quality-controlled Integrated Science Data Management (ISDM, formerly MEDS) drifting (and some moored) buoy data, used as input for International Comprehensive Ocean-Atmosphere Data Set (ICOADS). Data from drifters with deep drogues [http://www.meds-sdmm.dfo-mpo.gc.ca/isdm-gdsi/drib-bder/kiel/kiel-eng.htm], collected by the Institut fur Meereskunde, at the University of Kiel from 1980 to 1996, are also archived in this dataset.