201 datasets

NASA Earthdata CMR2026 · Image data

This data set contains SWE data collected from the Reynolds Creek Experimental Watershed on 23 January 2020 and 23 February 2020 as part of the NASA SnowEx20 field campaign. Also available are raw point clouds of the snow surface from terrestrial laser scans (TLS) and RGB imagery from Unoccupied Aerial System (UAS) flights collected between 15 November 2018 and 23 February 2020. Real-time kinetic

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 provides a time series of visible-wavelength digital camera imagery collected through the PhenoCam Network at each of 393 sites predominantly in North America from 2000-2018. The raw imagery was used to derive information on phenology, including time series of vegetation color, canopy greenness, and phenology transition dates for the PhenoCam Dataset v2.0.

NASA Earthdata CMR2025 · collection

Air-sea interaction in the Southern Ocean connects the "conveyor belt" overturning circulations in each the major oceans of the world (Atlantic, Pacific, and Indian), providing the long-term memory of the climate system by determining the rates of oceanic heat and carbon storage over tens to hundreds of years as well as the supply of heat to melt Antarctic ice shelves. With the goal of enhancing o

NASA Earthdata CMR2024 · Raster · GeoTIFF

This dataset includes Digital Surface Models (DSMs) derived from UAV-LiDAR imagery acquired during the SnowEx 2021 field campaign at the Central Agricultural Research Center in central Montana (USA). The DSMs are at 0.3 m resolution and consist of one snow-off and seven snow-on flights. Also available is a 0.25 m resolution orthomosaic of the study area collected via UAV on 21 January 2021.

NASA Earthdata CMR + NASA Data Portal2024 · Image data

This dataset contains photographs of the plots where field vegetation sampling was conducted during the 2022 NASA Surface Biology Geology (SBG) High Frequency Time series (SHIFT) campaign. Sampling occurred at the Jack and Laura Dangermond Preserve, Sedgwick Reserve, and Carpinteria Salt Marsh Reserve, which are located in Santa Barbara County, California, USA. Photographs were taken from 2022-02-

NASA Earthdata CMR2024 · Raster · GeoTIFF

This data set contains a time series of snow depth maps and related intermediary snow-on and snow-off DEMs for Grand Mesa and the Banded Peak Ranch areas of Colorado derived from very-high-resolution (VHR) satellite stereo images and lidar point cloud data. Two of the snow depth maps coincide temporally with the 2017 NASA SnowEx Grand Mesa field campaign, providing a comparison between the satelli

NASA Earthdata CMR2023 · Raster · GeoTIFF

This data set includes: (1) fine-scale snow and land cover maps from two mountainous study sites in the Western U.S., produced using machine-learning models trained to extract land cover data from WorldView-2 and WorldView-3 stereo panchromatic and multispectral images; (2) binary snow maps derived from the land cover maps; and (3) 30 m and 465 m fractional snow-covered area (fSCA) maps, produced

NASA Earthdata CMR + NASA Data Portal2023 · Image data

This dataset provides measurements of gas exchange (light response curves, Kok curves and ACi curves), leaf traits (carbon, nitrogen, and specific leaf area), leaf pigments (Chlorophyll a, Chlorophyll b and Carotenoids), the photochemical reflectance index (PRI), and average photosynthetic photon flux density as collected from hemispherical photographs. Data were collected on white spruce trees (P

NASA Earthdata CMR2022 · Image data

This data set contains a 2-m resolution DEM composite and auxiliary parameters over the Chamoli disaster area in Uttarakhand, India, where on 7 February 2021 a glacier burst led to a massive flood. This is the pre-event DEM constructed from monoscopic Maxar/DigitalGlobe WorldView-1 and WorldView-2 images collected in September 2015. A post-event DEM is available as a separate data set (Chamoli Dis

NASA Earthdata CMR2022 · Image data

This data set contains 2-m resolution DEM composites and a DEM difference map over the Chamoli disaster area in Uttarakhand, India, where on 7 February 2021 a glacier burst led to a massive flood. These post-event DEMs were constructed from monoscopic Maxar/DigitalGlobe WorldView-2, WorldView-3, and GeoEye-1 images acquired on 10 February 2021 and 11 February 2021, and one DEM was generated from P

NASA Earthdata CMR2022 · collection

The transboundary Pumpqu/Arun River basin spreads across Nepal and Tibet. Nearly 95% of the basin lies in Tibet through which the Pumpqu River flows. The river is named the Arun River once it enters Nepal. Five large hydropower projects (in total about 3,163 MW) are currently under construction or are planned for the Arun River valley. Rainfall and earthquake-induced landslides, landslide dammed l

NASA Earthdata CMR + NASA Data Portal2021 · Image data

This dataset contains a high-resolution land cover classification focused on water and wetland vegetation classes over three NASA ABoVE Campaign regions: Yukon Flats, Alaska, USA; the Peace-Athabasca Delta, Alberta; and the Canadian Shield, Northwest Territories (NWT), Canada. The product was derived from L-band synthetic aperture radar (SAR) acquisitions from the airborne NASA UAVSAR instrument i

NASA Earthdata CMR + NASA Data Portal2021 · Image data

This dataset provides modeled estimates of lichen ground cover at 30 m resolution across the Fortymile study area in interior eastern Alaska, U.S., and the Yukon Territory, Canada, for the nominal year 2015. The mapped lichens are important winter forage for the nine resident caribou (Rangifer tarandus) herds in the region. A random forest modeling approach with vegetation inputs and environmental

NASA Earthdata CMR + NASA Data Portal2021 · Image data

This dataset includes maps of historical lake shorelines with derived lake areas in the southern portion of the Goldstream Valley and the surrounding landscape north of Fairbanks, Alaska, USA. Historical lake margins were mapped for 1949, 1967, and 1985 using 1 m aerial photographs available through U.S. Geological Survey Earth Explorer, and for 2009 using 2.5 m SPOT satellite image mosaics. The s

NASA Earthdata CMR2020 · collection

This dataset contains images of the sky taken with the HRCAM (High Resolution CAMera) instrument. HRCAM is a digital SLR camera (Canon EOS 50D; 15 megapixels) equipped with a fish-eye lens (Sigma 4.5-mm f/2.8) for all-sky coverage on a 1.6 crop sensor. HRCAM was primarily designed by Daniel Luong-Van. Nick Tothill helped with construction. Michael Ashley helped with design, construction, software,

NASA Earthdata CMR2020 · collection

The main purpose of the field campaign of Nov-Dec 2015 was to glean real-world data to facilitate the use of a model-data fusion process to infer the exchange of sensible heat and moisture fluxes from healthy and unhealthy A. macquariensis cushions in an effort to quantify differences in the exchange of heat and moisture between stressed and unstressed plants. Recent observations (April 2015) and

NASA Earthdata CMR2019 · collection

Current oceanographic interest in the interaction of relatively warm water of the Southern Ocean Circumpolar Deep Water ( CDW) as it moves southward to the frigid waters of the Antarctic continental shelves is based on the potential importance of heat transport from the global ocean to the base of continental ice shelves. This is needed to understand the longer term mass balance of the continent,

NASA Earthdata CMR2019 · collection

This study aims to better understand salt accumulation in cold deserts and develop a model of salt transport by groundwater. Cold deserts, like the Antarctic McMurdo Dry Valleys (MDV), are similar to hot deserts in that they accumulate high concentrations of salts because there is not enough water to flush the salts out of the soils into the ocean. The accumulation of salt allows for the creation

NASA Earthdata CMR + NASA Data Portal2019 · Image data

This dataset provides descriptions and photos of environmental conditions that impacted availability to subsistence resources by residents in nine rural communities within the Yukon River basin of Interior Alaska. The data (photos) were collected by citizens (harvesters) residing in the communities while engaged in subsistence harvesting activities. The data include descriptions of the environment

NASA Earthdata CMR2019 · collection

This dataset contains images of the infrared emissions from the Meinel band from the night sky above Davis, Antarctica. The camera runs continuously during darkness, over intervals set by a yearly almanac of start and stop times. Images of resolution 320x256 pixels are collected and stored approximately every ten seconds. They record the emission intensity over much of the sky. Continuous daylight

NASA Earthdata CMR + NASA Data Portal2019 · Image data

This dataset provides NASA AirSWOT Ka-band (35.75 GHz) radar interferometry data products for water surface elevation (WSE), a derived color-infrared (CIR) digital image orthomosaic, and derived lake/wetland and river channel water masks at 3.6 x 3.6 m resolution for a study area of ~3,300 km2 in the Yukon Flats Basin (YFB) in eastern interior Alaska. The data were collected during a flight over t

NASA Earthdata CMR2019 · collection

Marine geological and geophysical data were acquired from the eastern Ross Sea continental shelf. The geophysical data includes a large area multibeam swath bathymetry plus chirp and three regional dip-oriented seismic lines in the axis of the basin. Core were collected at sixteen stations in the basin from the outer continental shelf to just north of the Ross Ice Shelf calving front. The core typ

NASA Earthdata CMR + NASA Data Portal2019 · Image data

This dataset provides near-daily lake area timeseries for 85,358 lakes across four study areas in Northern Canada and Alaska, USA, between May 1 and October 1, 2017. These lake area estimates were produced using digital images from newly developed Planet Labs CubeSats, small satellites with a 4-band (blue, green, red, near-infrared) camera payload. In constellation, CubeSats collected imagery at v