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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 25, 2025 at 09:01 PM

This data set reports the results of soil and vegetation surveys at four distinct areas within the Tapajos National Forest (TNF), 50 to 100 km south of Santarem, Para, Brazil, in November 1999. At...

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• Organization: Department of the Interior
• Updated: 20250428 | Harvested: August 25, 2025 at 07:29 PM

IMPORTANT NOTE: This dataset includes spatial locations where streamflow permanence observations (continuous flow, discontinuous flow, and dry) were recorded using the FLOwPER (FLOw PERmanence)...

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• Organization: Department of the Interior
• Updated: 20250410 | Harvested: August 25, 2025 at 07:26 PM

These data describe layered double hydroxide (LDH) mediated delivery of novel gene silencing agents (GSAs) in leaf tissue of the invasive common reed <i>Phragmites australis</i> ssp....

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• Organization: Department of the Interior
• Updated: 20240712 | Harvested: July 16, 2025 at 02:36 AM

This dataset provides topographic indices derived from 1 m resolution DEMs for sequoia groves in both Sequoia-Kings Canyon and Yosemite National Parks. All mapped sequoia groves in Sequoia-Kings...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:06 AM

This data set reports the results of vegetation field surveys that measured tree height and diameter at breast height (DBH) in defined size classes at three study sites -- Santarem, Para;...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 25, 2025 at 01:31 AM

This data set reports measurements of aquatic macrophyte biomass, phenology, leaf characteristics, and length and diameter of stems of both submerged and unsubmerged macrophytes. Data were...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:01 AM

This data set provides measurements of soil properties compiled from 39 studies on nutrient dynamics in natural forests and forest-derived land uses (pasture, shifting cultivation and tree...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 12:52 AM

The objectives of this study were to collect soil survey information from the FIFE study area, determine the soil types at the FIFE sites, and characterize the physical and chemical properties of...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 18, 2025 at 06:19 PM

This dataset provides a subset of the SRTM30 Digital Elevation Model (DEM) elevation and standard deviation data for the Amazon Basin. SRTM30 is a near-global digital elevation model (DEM)...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:07 AM

This data set provides spatially extensive and temporally intensive surveys of the river biogeochemistry of the Ji-Parana River Basin in Western Amazonia, Rondonia, Brazil. The concentrations of...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 01:59 AM

This data set provides a summary of the model structure and characteristics of participating models in the North American Carbon Program (NACP) Multi-scale synthesis and Terrestrial Model...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-10 | Harvested: September 14, 2025 at 05:34 AM

This data set provides concentrations of soil phosphorus (P) compiled from the peer-reviewed literature that cited the Hedley fractionation method (Hedley and Stewart, 1982). This database...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 25, 2025 at 08:50 PM

This data set provides a soil map with estimates of soil carbon (C) in g C/m2 for 20-cm layers from the surface to one meter depth for the conterminous United States.STATSGO v.1 (State Soil...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:06 AM

This data set provides measurements for diameter at breast height (DBH), tree height, distance from tree stems to the furthest canopy element, and a species survey of secondary forests in Para and...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-10 | Harvested: September 14, 2025 at 05:34 AM

This data set provides the concentrations of soil microbial biomass carbon (C), nitrogen (N) and phosphorus (P), soil organic carbon, total nitrogen, and total phosphorus at biome and global...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:04 AM

This data set presents georeferenced digital video files from Validation Overflight for Amazon Mosaics (VOAM) aerial video surveys as part of the Large-Scale Biosphere-Atmosphere Experiment in the...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:04 AM

This data set includes high-resolution geocoded mosaics derived from the Validation Overflight for Amazon Mosaics (VOAM) aerial video surveys as part of the Large-Scale Biosphere-Atmosphere (LBA)...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-10 | Harvested: November 03, 2025 at 09:31 PM

This table contains the ROSAT North Ecliptic Pole (NEP) Survey list of optical identifications. The X-ray data around the NEP from the ROSAT All-Sky Survey (RASS) were used to construct a...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 04:22 AM

This data set provides land use and land cover (LULC) classification products at 100-m resolution for India at decadal intervals for 1985, 1995 and 2005. The data were derived from Landsat 4 and 5...

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• Organization: Networking and Information Technology Research and Development, Executive Office of the President
• Updated: 2001-01-01 | Harvested: June 26, 2025 at 01:50 AM

This White Paper presents a survey of high confidence software and systems research needs. It has been prepared by the High Confidence Software and Systems Coordinating Group HCSS CG of the...

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