AndreaBozzo/ceres-open-data-index huggingface dataset:
Global Navigation Satellite System (GNSS) Final Orbit Products from NASA CDDIS

Precise satellite orbits derived from analysis of Global Navigation Satellite System (GNSS) data. Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce precise orbits identifying the position and velocity of the GNSS satellites. These orbits are determined sub-daily (ultra-rapid generation), daily (rapid generation), and weekly (final IGS product). The IGS Analysis Center Coordinator retrieves these individual solutions and generates the official IGS combined orbit products. The orbits generated by the individual ACs and the combination products generated by the ACCs are available at the CDDIS. These orbits can be used to determine precise coordinates of the observing stations, gravity field parameters, and Earth orientation parameters. The IGS Final products are the basis for the IGS reference frame and are intended for those applications demanding high consistency and quality.

Tags: earth-science-geodetics-solid-earth-techniques-gnss-global-navigation-satellite-systems, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-elev, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-incl, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-type, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-velocit, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbital-posit, earth-science-not-provided-not-provided, earth-science-platform-characteristics-spectral-engineering-orbital-characteristics
Organization: National Aeronautics and Space Administration
Global N Cycle: Fluxes and N2O Mixing Ratios Originating from Human Activity

Nitrogen is a major nutrient in terrestrial ecosystems and an important catalyst in tropospheric photochemistry. Over the last century human activities have dramatically increased inputs of reactive nitrogen (Nr, the combination of oxidized, reduced and organically bound nitrogen) to the Earth system. Nitrogen cycle perturbations have compromised air quality and human health, acidified ecosystems, and degraded and eutrophied lakes and coastal estuaries [Vitousek et al., 1997a, 1997b; Rabalais, 2002; Howarth et al., 2003; Townsend et al., 2003; Galloway et al., 2004]. To begin to quantify the changes to the global N cycle, we have assembled key flux data and N2O mixing ratios from various sources. The data assembled from different sources includes fertilizer production from 1920-2004; manure production from 1860-2004; crop N fixation estimated for three time points, 1860, 1900, 1995; tropospheric N2O mixing ratios from ice core and firn measurements, and tropospheric concentrations to cover the time period from 1756-2004. The changing N2O concentrations provide an independent index of changes to the global N cycle, in much the same way that changing carbon dioxide concentrations provide an important constraint on the global carbon cycle. The changes to the global N cycle are driven by industrialization, as indicated by fossil fuel NOx emission, and by the intensification of agriculture, as indicted by fertilizer and manure production and crop N2 fixation. The data set and the science it reflects are by nature interdisciplinary. Making the data set available through the ORNL DAAC is an attempt to make the data set available to the considerable interdisciplinary community studying the N cycle.

Tags: earth-science-agricultural-chemicals-agriculture-fertilizers, earth-science-atmospheric-chemistry-atmosphere-nitrogen-compounds, earth-science-atmospheric-chemistry-atmosphere-nitrogen-compounds-nitrogen-oxides, earth-science-ecological-dynamics-biosphere-ecosystem-functions-nutrient-cycling, earth-science-environmental-impacts-human-dimensions-agricultural-expansion, earth-science-socioeconomics-human-dimensions-industrialization
Organization: National Aeronautics and Space Administration
GPM SSMIS on F16 (GPROF) Radiometer Precipitation Profiling L3 1 month 0.25 degree x 0.25 degree V07 (GPM_3GPROFF16SSMIS) at GES DISC

Version 07 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 07. 3GPROF products provide global gridded monthly/daily precipitation averages from multiple satellites that can be used for climate studies. The 3GPROF products are based on retrievals from high-quality microwave sensors, which are sensitive to liquid and ice-phase precipitation hydrometeors in the atmosphere.

Tags: earth-science-atmospheric-water-vapor-atmosphere, earth-science-precipitation-atmosphere
Organization: National Aeronautics and Space Administration
GPM Ground Validation Snow Depth Monitoring System OLYMPEX V1

The GPM Ground Validation Snow Depth Monitoring System OLYMPEX dataset consists of snow depth, temperature, and relative humidity measurements which were collected using snow depth poles, time lapse cameras, temperature/relative humidity sensors, and manual snow surveys. This dataset was collected during the GPM Ground Validation Olympic Mountain Experiment (OLYMPEX) held on the Olympic Peninsula in the Pacific Northwest of the United States. The analyzed data files are available in netCDF-3 data format. The dataset includes the individual camera photos of snow poles taken hourly during the field campaign, provided as JPG images. There are up to 3 cameras/poles per study site location. In addition, a Microsoft Excel data file contains results of a manual snow survey taken on the specific days of the Airborne Snow Observatory OLYMPEX overflights. In total, measurements contained in this dataset extend from September 5, 2014 through August 20, 2016, but the primary field campaign data were collected during the fall 2015 to spring 2016 time period.

Tags: earth-science-atmospheric-temperature-atmosphere-surface-temperature, earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-humidity-relative-humid, earth-science-cryospheric-indicators-climate-indicators-snow-depth
Organization: National Aeronautics and Space Administration
Global MODIS and FLUXNET-derived Daily Gross Primary Production, V2

This dataset provides global gridded daily estimates of gross primary production (GPP) and uncertainties at 0.05-degree resolution for the period 2000-03-01 to the recent past. The GPP was derived from the MODerate-resolution Imaging Spectroradiometer (MODIS) instruments on the NASA Terra and Aqua satellites using the MCD43C4v006 Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectances (NBAR) product as input to neural networks that were used to globally upscale GPP estimated from selected FLUXNET 2015 eddy covariance tower sites. Additional data will be added periodically.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production, earth-science-soils-land-surface-soil-productivity-gross-primary-production-gpp, earth-science-surface-radiative-properties-land-surface-reflectance, earth-science-vegetation-biosphere-photosynthetically-active-radiation-fraction-of-absorbed-pho
Organization: National Aeronautics and Space Administration
Global Navigation Satellite System (GNSS) International Terrestrial Reference Frame (ITRF) 2020 products (IGS20) from NASA CDDIS

These data-derived products are the International GNSS Service (IGS) Analysis Centers' (AC) contribution to the International Terrestrial Reference Frame (ITRF) 2020.

Tags: earth-science-geodetics-solid-earth-coordinate-reference-system-global-coordinate-reference-sys, earth-science-geodetics-solid-earth-techniques-gnss-global-navigation-satellite-systems, earth-science-gravity-gravitational-field-solid-earth-gravity
Organization: National Aeronautics and Space Administration
Global Navigation Satellite System (GNSS) Satellite Data from NASA CDDIS

Global Navigation Satellite System (GNSS) data consists of the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS) (plus other international systems) data sets. The Global Positioning System, developed by the U.S. Department of Defense, has been fully operational since 1994. GPS consists of a constellation of 24 satellites and three active spares each traveling in a 12 hour circular orbit, 20,200 kilometers above the Earth. The satellites are positioned so that six are observable nearly 100 percent of the time from any point on the Earth. The GLObal NAvigation Satellite System (GLONASS), managed and deployed by the Russian Federation, is similar to the U. S. Global Positioning System (GPS) in terms of the satellite constellation, orbits, and signal structure. GNSS receivers detect, decode, and process signals from the GNSS satellites.

Tags: earth-science-geodetics-solid-earth, earth-science-geodetics-solid-earth-techniques-gnss-global-navigation-satellite-systems
Organization: National Aeronautics and Space Administration
Global Navigation Satellite Systems (GNSS) Real-Time Orbit Products from NASA CDDIS

Precise satellite orbits derived from analysis of Global Navigation Satellite System (GNSS) data. Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce precise orbits identifying the position and velocity of the GNSS satellites. The orbits derived from real-time data streams are used for comparison purposes.

Tags: earth-science-geodetics-solid-earth, earth-science-geodetics-solid-earth-techniques-gnss-global-navigation-satellite-systems
Organization: National Aeronautics and Space Administration
Ground-Based Global Navigation Satellite System (GNSS)-based Upper Atmospheric Realtime Disaster Information and Alert Network (GUARDIAN) GLONASS Earth Orientation Parameters (1-day sampling, 7-day files) from NASA CDDIS

This product contains a time series of Earth orientation parameters from the IERS Bulletin A for the GLONASS constellation of satellites. The product is generated at JPL's Global Differential GPS Operations Centers.

Tags: earth-science-geodetics-solid-earth-coordinate-reference-system-country-regional-coordinate-ref, earth-science-geodetics-solid-earth-coordinate-reference-system-global-coordinate-reference-sys, earth-science-geodetics-solid-earth-ellipsoid-characteristics, earth-science-geodetics-solid-earth-geoid-characteristics, earth-science-gravity-gravitational-field-solid-earth-crustal-motion-isostatic-adjustments, earth-science-gravity-gravitational-field-solid-earth-gravitational-field, earth-science-gravity-gravitational-field-solid-earth-gravity, earth-science-gravity-gravitational-field-solid-earth-gravity-anomalies, earth-science-gravity-gravitational-field-solid-earth-polar-motion-annual-elliptical-component, earth-science-gravity-gravitational-field-solid-earth-polar-motion-chandler-circular-component, earth-science-gravity-gravitational-field-solid-earth-rotational-motion-variations-rotational-r, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-elev, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-incl, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-type, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-velocit, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbital-posit, earth-science-tectonics-solid-earth-core-processes, earth-science-tectonics-solid-earth-earthquakes-earthquake-magnitude-intensity, earth-science-tectonics-solid-earth-earthquakes-earthquake-occurrences, earth-science-tectonics-solid-earth-earthquakes-earthquake-predictions, earth-science-tectonics-solid-earth-earthquakes-seismic-profile-seismic-body-waves, earth-science-tectonics-solid-earth-earthquakes-seismic-profile-seismic-surface-waves, earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-direction, earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-rate
Organization: National Aeronautics and Space Administration
High Altitude MMIC Sounding Radiometer (HAMSR) CPEX V1

The High Altitude MMIC Sounding Radiometer (HAMSR) CPEX dataset includes measurements gathered by the HAMSR instrument during the Convective Processes Experiment (CPEX) field campaign. The CPEX field campaign took place in the North Atlantic-Gulf of America-Caribbean Sea region from 25 May-25 June 2017. CPEX conducted a total of sixteen DC-8 missions from 27 May-24 June. The CPEX campaign collected data to help explain convective storm initiation, organization, growth, and dissipation in the North Atlantic-Gulf of America-Caribbean Oceanic region during the early summer of 2017. HAMSR has 25 spectral channels which are split into 3 bands to provide measurements that can be used to infer the 3-dimensional distribution of temperature, water vapor, and cloud liquid water profiles in the atmosphere, even in the presence of clouds. Data are available from May 24, 2017 through July 16, 2017 in netCDF-3 format.

Tags: earth-science-atmospheric-temperature-atmosphere-upper-air-temperature, earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-humidity-absolute-humid, earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-humidity-relative-humid, earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-water-vapor, earth-science-clouds-atmosphere-cloud-microphysics-cloud-liquid-water-ice, earth-science-infrared-wavelengths-spectral-engineering-brightness-temperature, earth-science-precipitation-atmosphere-atmospheric-precipitation-indices
Organization: National Aeronautics and Space Administration
High-Resolution Rectified Aerial Photography for Collaborative Research of Environmental Change at Barrow, Alaska, USA, Version 1

This data set includes aerial photography of Barrow, Alaska, which has been geocorrected to a 2002 QuickBird satellite image or Interferometric Synthetic Aperture Radar (IFSAR) imagery. Photography included in the set is from these specific dates, from 1948 to 1997: 4 August 1948, 29 July 1949, 12-14 August 1955, 12-24 August 1962, 14 July 1964, 15 July 1979, 31 August 1984, and 16 July 1997. Data are in GeoTIFF and ESRI Shapefile formats with FGDC compliant metadata. Data on DVD are available for ordering. Note: The data for 14 July 1964 span both DVDs. Send an email to NSIDC User Services at nsidc@nsidc.org to order the data.

Tags: earth-science-visible-wavelengths-spectral-engineering-visible-imagery-aerial-photography
Organization: National Aeronautics and Space Administration
Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)

Measurements from the GO-SHIP (Global Ocean Ship-based Hydrographic Investigations Program) project, which is a network of sustained hydrographic sections, supporting physical oceanography, the carbon cycle, and marine biogeochemistry and ecosystems.

Tags: earth-science-ocean-chemistry-oceans, earth-science-ocean-optics-oceans, earth-science-ocean-temperature-oceans, earth-science-salinity-density-oceans
Organization: National Aeronautics and Space Administration
GRACE NON-TIDAL ATMOSPHERE GEOPOTENTIAL COEFFICIENTS GFZ RELEASE 6.0 GAA

FOR EXPERT USE ONLY. This dataset contains estimates of geopotential field derived from the Gravity Recovery and Climate Experiment (GRACE) mission measurements and a non-tidal atmospheric model produced by the German Research Centre for Geosciences (GFZ). The data are in spherical harmonics averaged over approximately a month. The primary objective of the GRACE mission is to obtain accurate estimates of the mean and time-variable components of the gravity field variations. This objective is achieved by making continuous measurements of the change in distance between twin spacecraft, co-orbiting in about 500 km altitude, near circular, polar orbit, spaced approximately 200 km apart, using a microwave ranging system. In addition to these range change, the non-gravitional forces are measured on each satellite using a high accuracy electrostatic, room-temperature accelerometer. The satellite orientation and position (and timing) are precisely measured using twin star cameras and a GPS receiver, respectively. Spatial and temporal variations in the gravity field affect the orbits (or trajectories) of the twin spacecraft differently. These differences are manifested as changes in the distance between the spacecraft, as they orbit the Earth. This change in distance is reflected in the time-of-flight of microwave signals transmitted and received nearly simultaneously between the two spacecraft. The change in this time of fight is continuously measured by tracking the phase of the microwave carrier signals. The so called dual-one-way range change measurements can be reconstructed from these phase measurements. This range change (or its numerically derived derivatives), along with other mission and ancillary data, is subsequently analyzed to extract the parameters of an Earth gravity field model.

Tags: earth-science-atmospheric-pressure-atmosphere-pressure-anomalies, earth-science-gravity-gravitational-field-solid-earth-gravity-anomalies
Organization: National Aeronautics and Space Administration
GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IPHEX V1

The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IPHEx dataset was collected during the GPM Ground Validation Integrated Precipitation and Hydrology Experiment (IPHEx) held in North Carolina. The goal of IPHEx was to evaluate the accuracy of satellite precipitation measurements and use the collected data for hydrology models in the region. Collected from five sites, the data contains daily ASCII files with information on individual hydrometeors including the number of hydrometeors, raindrop size distribution, and particle concentration. Overall data dates range from April 23, 2014 through June 17, 2014; exact dates may vary per site.

Tags: earth-science-precipitation-atmosphere-droplet-size, earth-science-precipitation-atmosphere-hydrometeors
Organization: National Aeronautics and Space Administration
Global Organic Soil Carbon and Nitrogen (Zinke et al.)

This package contains worldwide soil carbon and nitrogen data for more than 3,500 soil profiles. The database was begun about 40 years ago with the collection and analyses by Zinke of soil samples from California. Additional data came from soil surveys of California, Italy and Greece, Iran, Thailand, Vietnam, various tropical Amazonian areas, U.S. forest soils,and from the soil survey literature. The main samples for laboratory analyses were collected at uniform soil depth increments and included bulk density determinations, but samples reported in the literature did not always have this uniformity. For the latter group of samples, only profiles that were samples to a meter depth or to actual depth were used; if bulk densities were not reported, then estimates were made from regressions based on organic carbon content of the soil samples associated with the profile. Methods used for analytical carbon determinations were dry combustion, 'wet combustion', or loss on ignition with adjustments made to the values obtained with the last two methods. Nitrogen was determined by the Kjeldahl method on the soil fine earth fraction and reported as total organic nitrogen. The data can be used to estimate the size of the soil's organic carbon and nitrogen pools at equilibrium with natural soil-forming factors. Most of the data are from profiles associated with natural vegetation so they constitute a baseline for evaluation of the effects that disturbance or modification to natural vegetation has on soil carbon equilibrium at either a global or regional scale. The data can also be used for understanding the range and viability of soil carbon and nitrogen pools for specific ecosystems or climatic regimes.

Tags: earth-science-soils-land-surface-organic-matter, earth-science-soils-land-surface-soil-chemistry
Organization: National Aeronautics and Space Administration
GRACE FIELD GEOPOTENTIAL COEFFICIENTS CSR RELEASE 6.0

FOR EXPERT USE ONLY. This dataset contains estimates of static field geopotential of the Earth, derived from the Gravity Recovery and Climate Experiment (GRACE) mission measurements, produced by the Center for Space Research (CSR) at University of Texas at Austin. The data are in spherical harmonics averaged over approximately a month. The primary objective of the GRACE mission is to obtain accurate estimates of the mean and time-variable components of the gravity field variations. This objective is achieved by making continuous measurements of the change in distance between twin spacecraft, co-orbiting in about 500 km altitude, near circular, polar orbit, spaced approximately 200 km apart, using a microwave ranging system. In addition to these range change, the non-gravitional forces are measured on each satellite using a high accuracy electrostatic, room-temperature accelerometer. The satellite orientation and position (and timing) are precisely measured using twin star cameras and a GPS receiver, respectively. Spatial and temporal variations in the gravity field affect the orbits (or trajectories) of the twin spacecraft differently. These differences are manifested as changes in the distance between the spacecraft, as they orbit the Earth. This change in distance is reflected in the time-of-flight of microwave signals transmitted and received nearly simultaneously between the two spacecraft. The change in this time of fight is continuously measured by tracking the phase of the microwave carrier signals. The so called dual-one-way range change measurements can be reconstructed from these phase measurements. This range change (or its numerically derived derivatives), along with other mission and ancillary data, is subsequently analyzed to extract the parameters of an Earth gravity field model.

Tags: earth-science-gravity-gravitational-field-solid-earth-gravity
Organization: National Aeronautics and Space Administration
Global River Discharge, 1807-1991, V[ersion]. 1.1 (RivDIS)

The Global Monthly River Discharge Data Set (RivDIS) contains monthly averaged discharge measurements for 1,018 stations located throughout the world from 1807-1991. The period of record varies widely from station to station with a mean of 21.5 years. The data are derived from the published UNESCO archives for river discharge, and checked against information obtained from the Global Runoff Center in Koblenz, Germany through the U.S. National Geophysical Data Center in Boulder, Colorado.

Tags: earth-science-surface-water-terrestrial-hydrosphere-surface-water-processes-measurements-discha
Organization: National Aeronautics and Space Administration