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}NASA Earthdata CMR + NASA Data Portal2026 · Image data
ABoVE: Ground-based Reflectance Spectra of Vegetation at Multiple Sites Across AlaskaThis 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 CMR2026 · Table · CSV
SnowEx23 Apr23 Spectrometer Snow Surface Reflectance and Albedo, Version 1 V001This data set contains a comprehensive set of field-based measurements of snow surface reflectance and broadband snow albedo collected during the NASA SnowEx 2023 field campaign in interior Alaska. Data were acquired in April and May 2023 across three study sites near Fairbanks, Alaska, selected to represent the dominant boreal landcover types: closed-canopy forests, recently and historically burn
NASA Earthdata CMR + NASA Data Portal2025 · Image data
SHIFT: Pseudo-invariant Targets, ASD Field Spectrometer Measurements, 2022This dataset provides biweekly surface reflectance measurements of pseudo-invariant sites at Sedgwick Reserve, Santa Barbara, California, collected with an ASD FieldSpec Pro field spectrometer during the SBG High-Frequency Time-Series (SHIFT) campaign in Spring and Fall 2022. The dataset includes measurements of seven primary spatially-homogenous, temporally pseudo-invariant sites (three areas of
NASA Earthdata CMR + NASA Data Portal2025 · Astronomical catalogue
PEM Tropics A DC-8 Photolysis Frequencies (J-Values)PEM-Tropics-A_jValue_AircraftInSitu_DC8_Data is the photolysis frequencies (j-values) measured along the DC-8 flight during the Pacific Exploratory Mission (PEM) Tropics A suborbital campaign. Data collection for this product is complete. From 1983-2001, NASA conducted a collection of field campaigns as part of the Global Tropospheric Experiment (GTE). Among those was PEM, which intended to improv
NASA Earthdata CMR + NASA Data Portal2024 · Image data
Ocean Biogeochemistry from Gliders as part of the Gulf of Maine North Atlantic Time SeriesThis dataset contains ocean biogeochemistry data from two Slocum gliders along the Gulf of Maine North Atlantic Time Series (GNATS) transect. The transect runs approximately east-west, with only a very minor change in latitude. The gliders are deployed on the western end of the transect, travel along the transect line to the eastern end, turn around and travel back along the transect to the wester
NASA Earthdata CMR + NASA Data Portal2024 · Image data
Spectral Reflectance and Ancillary Data, Tundra Transect, North Slope, AK, 2000-2022This dataset provides visible-near infrared spectral reflectance, descriptions of vegetation cover, surface temperature, the total fraction of absorbed photosynthetically active radiation (fAPAR, 2001 only), permafrost active layer depth, elevation, and soil temperature at 5 cm depth. Measurements were made at every meter along a 100-m transect aligned mainly in an east-west direction, located app
NASA Earthdata CMR + NASA Data Portal2023 · Image data
ABoVE: White Spruce Photosynthetic and Leaf Traits, Alaska and New York, 2017This 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 CMR2018 · collection
Can remote sensing be used to map vegetation and monitor community change in Antarctica?This dataset consists of Hyperion satellite imagery, as well as GPS ground truthing of vegetation quadrats. The aims of this project were: 1. to produce a spectral library of the major subantarctic terrestrial plant species and community types from ground spectroradiometery measurements . 2. to use the spectral library to assist in classification of vegetation communities. File: 2392HI2003_04 Vege
NASA Earthdata CMR2018 · collection
Sea ice bio-optical measurementsField-based sampling: As part of Australian Antarctic Science project # 4298, a total number of 44 sea ice sites were sampled for bio-optical measurements along 4 transects on land-fast sea ice off Davis Station (Antarctica) during November – December 2015. Measurements included simultaneous hyperspectral down-welling (ice surface) irradiance (triplicate) and under-ice radiance (triplicate) measur
NASA Earthdata CMR + NASA Data Portal2013 · Image data
LBA-ECO ND-01 Reflectance and Biophysical Measures, Grass Pastures: Rondonia, BrazilThis data set provides the results of spectral reflectance (350 to 2,500 nm at 1-nm increments) and biophysical measurements on grass pastures in eight cattle ranches in the state of Rondonia, located in the southwestern Brazilian Amazon. The ranches are located near the cities of Porto Velho, Ariquemes, Ouro Preto, Ji-Parana, and Presidente Medici. Field measurements were collected in July and Au
NASA Earthdata CMR + NASA Data Portal2010 · Astronomical catalogue
SMEX05 Multispectral Radiometer Data: Iowa, Version 1Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited. This data set contains multispectral radiometer reflectance data collected over the Soil Moisture Experiment 2005 (SMEX05) area of Iowa, USA.
NASA Earthdata CMR + NASA Data Portal2009 · Astronomical catalogue
SMEX04 Multispectral Radiometer Data: Arizona, Version 1Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited. This data set is comprised of in situ Multispectral Radiometer (MSR) data collected over the Soil Moisture Experiment 2004 (SMEX04) area of southern Arizona, USA.
NASA Earthdata CMR + NASA Data Portal2009 · Image data
Pre-LBA TRACE-A DataThis data set contains atmospheric chemistry and meteorological data from the NASA Transport and Atmospheric Chemistry near the Equator-Atlantic (TRACE-A) field study. The NASA TRACE-A study took place in August 1992 to determine the cause and source of high concentrations of ozone that accumulate over the Atlantic ocean between southern Africa and South America during the months of August through
NASA Earthdata CMR + NASA Data Portal2006 · Astronomical catalogue
NARSTO EPA Supersite (SS) Pittsburgh Meteorological DataNARSTO_EPA_SS_PITTSBURGH_MET_DATA is the North American Research Strategy for Tropospheric Ozone (NARSTO) Environmental Protection Agency (EPA) Supersite (SS) Pittsburgh Meteorological Data product. It was obtained between July 1, 2001 and November 1, 2002 during the Pittsburgh Supersite Program. Ambient monitoring at the central super site and a set of satellite sites in the Pittsburgh region inc
NASA Earthdata CMR + NASA Data Portal2005 · Image data
SAFARI 2000 ALI/ETM+ Tandem Image Pair for Skukuza, South Africa, May 2001A tandem pair of Advanced Land Imager (ALI) and Landsat Enhanced Thematic Mapper Plus (ETM+) scenes covering the same part of Kruger National Park (KNP), South Africa (including the Skukuza tower site and rest camp), were acquired about a minute apart on May 30, 2001. The ALI is one of three instruments aboard NASA's first New Millennium Program Earth Observing 1 (EO-1) satellite. ALI is a technol
NASA Earthdata CMR + NASA Data Portal2005 · Image data
SAFARI 2000 Surface Spectral Reflectance at Sua Pan, Botswana, Dry Season 2000The Multi-angle Imaging SpectroRadiometer (MISR) Validation team was deployed to Sua Pan, a salt playa in the Magkadigkadi region of Botswana, from August 18 to September 4, 2000, during the SAFARI 2000 Dry Season Aircraft Campaign. The experiment was designed to collect data necessary for multi-angle top-of-atmosphere radiance predictions in order to provide a vicarious calibration of the MISR in
NASA Earthdata CMR + NASA Data Portal2005 · Image data
SAFARI 2000 Leaf Spectral Measurements, Kalahari Transect, Wet Season 2000The Boston University team collected several data sets along the Kalahari Transect during the SAFARI 2000 wet season field campaign between March 3 and March 18, 2000 to support the validation of the MODIS LAI/FPAR algorithm. Ground measurements of LAI, FPAR, leaf hemispherical reflectance and transmittance, and canopy transmittance were made using a LAI-2000 plant canopy analyzer, an AccuPAR cept
NASA Earthdata CMR + NASA Data Portal2004 · Image data
SAFARI 2000 Pre- and Post-fire Reflectance near Kaoma, Zambia, Dry Season 2000The main goal of this study was to analyze the possibility of estimating combustion completeness based on fire-induced spectral reflectance changes of surface features by the development of relationships between combustion completeness and pre-fire to post-fire spectral reflectance changes, in the green, red, and near-infrared spectral domains (equivalent to Landsat ETM+ channels 2, 3, and 4). Exp
NASA Earthdata CMR + NASA Data Portal2004 · Image data
SAFARI 2000 Reflectance of Fire Residue, Kruger National Park, Dry Season 2000The goal of this study was to understand the change in reflectance caused by the action of fire and the heterogeneity of fire effects (i.e., the fraction of the observation that burned and the combustion completeness of that observation). A spectral mixture model and field and satellite observations were used to compare changes in Landsat reflectance associated with fire and combustion completenes
NASA Earthdata CMR + NASA Data Portal2003 · Image data
PROVE Vegetation Reflectance of Jornada Experimental Range, New Mexico, 1997Directional reflected radiation was measured over plots representing selected canopy components (shrubs and individual plants, bare sand, and background) at the Jornada Experiment Range site near Las Cruces, New Mexico, during the Prototype Validation Experiment (PROVE) in May 1997.At each plot, directional reflected radiation was measured in the solar principal plane; directional reflected radiat
NASA Earthdata CMR + NASA Data Portal2003 · Image data
PROVE MQUALS Reflectance at Jornada Experimental Range, New Mexico, 1997This study utilized low flying, aircraft-based radiometers for optical characterization of top-of-the-canopy reflectance at Jornada Experimental Range in New Mexico during the Prototype Validation Experiment (PROVE) in May 1997. MQUALS refers to a light aircraft radiometric package for MODLAND Quick Airborne Looks (MQUALS). The objective was to examine the usefulness of low-flying aircraft for Mod
NASA Earthdata CMR + NASA Data Portal2002 · Astronomical catalogue
NARSTO SOS99NASH DOE G-1 Air Chemistry DataNARSTO_SOS99NASH_G-1_AIR_CHEMISTRY_DATA is the North American Research Strategy for Tropospheric Ozone (NARSTO) SOS99 Nashville Department of Energy (DOE) G-1 Air Chemistry Data product. Data was collected via the G-1 aircraft deployed during the 1999 campaign to make measurements within the Nashville urban plume. These in situ, semi-Lagrangian measurements, in conjunction with surface-based obser
NASA Earthdata CMR + NASA Data Portal2002 · Astronomical catalogue
NARSTO SOS99 Nashville WP-3D Orion Air Chemistry DataNARSTO_SOS99NASH_WP3D_CHEMISTRY_DATA is the North American Research Strategy for Tropospheric Ozone (NARSTO) SOS99 Nashville WP-3D Orion Air Chemistry Data product. It was obtained between June 26 and July 19, 1999 during the WP3-D aircraft component of the Nashville 1999 study sponsored in part by the Southern Oxidant Study. The organizations participating in the study included Aircraft Operation
NASA Earthdata CMR2001 · collection
Erythemal UV radiation at Davis station summer 1998Data provides the date, time and 10 min cumulative erythemal irradiance at Davis Station for downwelling solar radiation and the irradiance at depth beneath neutral density screen (ND-polythene) and 3.3, 5.5, and 9.0 mm borosilicate glass. These light treatments simulated water column depths of 1.0, 2.0, 3.0, and 3.6 m depth (calculated using Beer's Law and the average UV transmittance of Antarcti
NASA Earthdata CMR + NASA Data Portal2000 · Image data
BOREAS TE-10 Leaf Optical Properties for SSA SpeciesThe BOREAS TE-10 team collected several data sets in support of its efforts to characterize and interpret information on the reflectance, transmittance, gas exchange, oxygen evolution, and biochemical properties of boreal vegetation. This data set describes the spectral optical properties (reflectance and transmittance) of boreal forest conifers and broadleaf tree leaves as measured with a Spectro