2,066 datasets

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset contains a map of tree crown polygons and orthomosaics for field sites in Panama across 153.36 ha of mapped plots in old-growth and old secondary forest in the Barro Colorado Nature Monument (BCNM), and San Lorenzo Protected Area (SLPA). Tree crown polygons were developed from orthophoto mosaics of UAV imagery acquired in July 2024, November 2024, and January 2025. Field work verified

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset contains vegetation plot data collected across the Cape Floristic Region (CFR) of South Africa as part of the BioSCape (Biodiversity Survey of the Cape) project. It holds field-based measurements of vegetation composition, structure, and cover across the region's Fynbos and associated plant communities. Variables include plot center coordinates, percent cover, canopy diameter, and abu

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset includes ground-based reflectance spectra collected using a Spectral Evolution PSR+ spectroradiometer during July and August of 2018 and 2019 as part of the NASA Arctic Boreal Vulnerability Experiment (ABoVE). Ground spectra provide high spectral resolution reference measurements for vegetation and surface targets that occur within or near UAV image footprints and across the broader A

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset provides pre-fire soil moisture and soil temperature profiles, and Live Fuel Moisture Content (LFMC) of six vegetation species collected at Sedgwick Reserve in Santa Barbara County, California, between July 20 and October 2, 2023. Soil moisture and soil temperature were measured using a METER TEROS 11 probe at standardized depths within soil pits dug near the time-of-flight overpass.

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset is a synthesis of terrestrial and freshwater CO2 and CH4 fluxes from the Arctic-Boreal region aggregated to monthly timesteps. The dataset, known as ABCFlux v2, includes 1,024 unique sites and spans 1984-2024 with the majority of observations occurring after 1999. ABCFlux v2 includes surface-atmosphere CO2 fluxes of net ecosystem exchange (NEE), gross primary production (GPP), and eco

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset provides aboveground biomass (AGB) maps at 10-m spatial resolution for the Howland Research Forest in central Maine for the years 2012, 2015, 2017, 2021, 2023, and 2025. Forest inventory measurements were collected from 38 plots during the summers of 2024 and 2025. Airborne LiDAR data were obtained from multiple sources and acquisition periods. The USGS 3D Elevation Program 3DEP data

NASA Earthdata CMR + NASA Data Portal2026 · Image data

This dataset provides predicted soil organic carbon (SOC) for 2021-2022 (nominal) as well as the predictor data for spatial models in four watersheds of the Pacific Northwest (PNW). These data support the study of wetland carbon storage within this landscape. Field sample collection for soil carbon stocks at 114 locations provide observations for modeling and were collected through 2021-2022. The

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides vegetation information for 64 coastal wetland plots and coastal wetland extent maps for three habitat classes in 84 estuaries in South Africa. The vegetation plot data include vegetation species occurrence, percent cover, salinity, representative vegetation heights, porewater salinity, and ground temperature. In situ plot data were collected between October 27 and November 10

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset includes field data, analysis code, and corresponding airborne imagery collected and generated during the 2022 NASA Surface Biology Geology (SBG) High Frequency Time series (SHIFT) campaign within Devereux Slough estuary in Santa Barbara County, California, USA. This campaign collected field data contemporaneously with weekly flights of the NASA's Airborne Visible-Infrared Imaging Spe

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides estimates of fractional vegetation cover across the Atchafalaya and Terrebonne basins. Atmospheric correction was applied to a L2B BRDF-adjusted surface reflectance product from AVIRIS-NG imagery to produce L2 Hemispherical-Directional surface reflectance. A spectral library was compiled using in situ spectra in the USGS Spectral Library (v7) to represent green vegetation, no

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset contains vegetation plot survey data collected at 36 sites across the Berg and Eerste River catchments in the Western Cape, South Africa collected during 2022 and again in 2023 during the 2023 BioSCape Field Collection season. Sampling protocols were designed by the BioSCape Leadership team for use by multiple teams to generate standardized and comparable vegetation plot data across s

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset includes five metrics of forest resilience (recruitment, invasives, permafrost change, tree damage, and radial growth) at five recently burned forest sites (2010-2019) near Fairbanks, Alaska. The sites were imaged by the Airborne Visible InfraRed Imaging Spectrometer (AVIRIS-NG) in 2017 and 2022 during the Arctic-Boreal Vulnerability Experiment (ABoVE). Field measurements were conduct

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides soil thaw depth and moisture measurements and dielectric properties measured by different research teams at sites in Alaska, U.S., and the Northwest Territories, Canada. There are multiple observations per site and 529,862 total observations. The dataset includes 224,200 observations of active layer thickness measured by mechanical probing (9.8%) or ground penetrating radar (

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset contains soil moisture sampling protocols and calibration algorithms for Campbell Scientific Hydrosense-I and II units used at burned and unburned sites in the ABoVE project domain. The soil moisture sampling protocols document provides guidance for sampling in situ soil moisture to relate to synthetic aperture radar (SAR) data collections. Two additional documents describe algorithms

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides vegetation phenological observations for 738 sites across diverse ecosystems of the world (mostly North America) from 2000 to 2023. The phenology data were derived from conventional visible-wavelength automated digital camera imagery collected through the PhenoCam Network at each site. From each acquired image, RGB (red, green, blue) color channel information was extracted an

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset holds measurements of Cesium-137 (137Cs) activity sampled from sites in the Atchafalaya and Terrebonne Basins on the southern coast of Louisiana, USA. Sediment cores were taken to validate modeled estimates of soil accretion rates. The NUMAR model was designed to predict soil properties and corresponding accretion rates in marsh environments. This study explored whether the probabilis

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides AutoMObile trace Gas Surveyor (AMOG) in situ relevant datasets collected during the CO2 and Methane EXperiment (COMEX) field campaign and afterwards. COMEX was conducted in the summer and fall 2014 to study strong methane, CH4, sources in S. California including animal husbandry, fossil fuel industrial (FFI) production, petroleum refining, landfills, and natural geological fo

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset includes sediment concentration and grain size distribution measurements from suspended and bed sediment samples collected in the Atchafalaya River and Terrebonne Basins as part of the Delta-X Spring campaign between March 25 and April 2, 2021, and the Delta-X Fall campaign between August 17 and 22, 2021. In addition, ten samples were collected during a field campaign in October 2019.

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides grain size distribution measurements collected from sediment core samples on Mike Island in the Wax Lake Delta, Louisiana, as part of the Delta-X Spring campaign in March, 2021,and the Fall campaign during August, 2021. The data are for March 26 and 29, and August 18 and 24. Sediment cores were collected using a piston core, then volume-based grain size distribution for each

NASA Earthdata CMR + NASA Data Portal2025 · Image data

This dataset provides elevation, hydrogeomorphic zone classification, soil carbon content, bulk density, organic matter content, and sediment accretion measurements collected at feldspar stations established near Louisiana's Coastwide Reference Monitoring Systems (CRMS) sites and on Mike Island in Wax Lake Delta (WLD). Feldspar stations were established to capture recent sediment deposition rates

NASA Earthdata CMR2024 · collection

Not Available

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset provides dissolved carbon dioxide (CO2) and methane (CH4) concentrations alongside their stable and radiocarbon isotopic compositions within the Arctic Sagavanirktok and Kuparuk River watersheds located on the North Slope of Alaska. The data were collected during the spring, fall, and summer seasons in 2022. In field separation of the bulk gaseous components (N2, CO2, and CH4) from th

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset provides measurements of vegetation biomass from 11 locations across Alaska during 2016 to 2018. Vegetation was harvested from plots that were located at the end of previously established 30-m transects at each site, except at one site where plots were randomly selected. Vascular vegetation was clipped from 50 cm x 50 cm plots, and non-vascular vegetation was clipped from 25 cm x 25 c

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset provides estimates of carbon dioxide (CO2) and methane (CH4) diffusive fluxes from waterbodies, and watershed landcover data for the central-interior of the Yukon-Kuskokwim Delta (YK delta), Alaska. Dissolved concentrations of methane and carbon dioxide were predicted using an integrated terrestrial-aquatic approach to scale observations based on landscape and waterbody remote sensing

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset contains vegetation plot locations, descriptions, fractional cover, and sample identifier information from surveys conducted as part of the 2022 NASA Surface Biology Geology (SBG) High Frequency Time series (SHIFT) campaign. Surveys took place from 2022-02-23 to 2022-09-27 at the Jack and Laura Dangermond Preserve, Sedgwick Reserve, and Carpinteria Salt Marsh Reserve, which are locate