EOSDIS Data News: April 20, 2018
The Application for Extracting and Exploring Analysis Ready Samples (AρρEEARS), developed by NASA's Land Processes Distributed Active Archive Center (LP DAAC), offers a simple and efficient way to subset Soil Moisture Active Passive (SMAP) datasets using spatial, temporal, and layer parameters for both point and area samples. In addition, a step-by-step tutorial for accessing SMAP data in AppEEARS is available for the following five products:
- Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture (SPL3SMP_E), Version 1
- L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture (SPL3SMP), Version 4
- L3 Radiometer Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State (SPL3FTP), Version 1
- L4 Global Daily 9 km Carbon Net Ecosystem Exchange (SPL4CMDL), Version 3
- L4 Global 9 km Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP), Version 3
NASA's Oak Ridge National Laboratory DAAC (ORNL DAAC) published the Vegetation Collection dataset Hyperspectral Imagery from Airborne Visible/Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) for Sites in Idaho and California, USA, 2014 and 2015. This dataset provides surface reflectance measured by the AVIRIS-NG instrument during flights over research sites in Idaho and California in 2014 and 2015. AVIRIS-NG measures reflected radiance at 5-nanometer (nm) intervals in the visible to shortwave infrared spectral range between 380 and 2510 nm. Measurements are radiometrically and geometrically calibrated and provided at 1-meter spatial resolution. The data include 72 flight lines covering long-term research sites in the Reynolds Creek Experimental Watershed in southwestern Idaho and Hollister in southeastern Idaho. Several flight lines from a site in the Inyo National Forest near Big Pine, California are included.
ORNL DAAC published the Arctic-Boreal Vulnerability Experiment (ABoVE) dataset High-Resolution Shrub Biomass and Uncertainty Maps, Toolik Lake Area, Alaska, 2013. This dataset contains estimates for aboveground shrub biomass and uncertainty at high spatial resolution (0.80-m) across three research areas near Toolik Lake, Alaska. The estimates for August of 2013 were generated and mapped using Random Forest modeling with input variables of optimized LIDAR-derived canopy volume and height, mean NDVI from 4-band RGB color and near-IR orthophotographs, and harvested biomass data. Shrub biomass was harvested at Toolik Lake in 2014 and used to optimize inputs and validate the final model and these biomass data are also provided.
ORNL DAAC published the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) dataset: Ecosystem Scale CH4 Emission Derived from Aircraft Observations 2012-2014. This dataset provides methane flux estimates derived from airborne measurements collected over Alaska and the western Yukon Territory during the CARVE between 2012 and 2014. The state-scale methane fluxes were calculated using a combination of atmospheric profiles and lagrangian transport modeling.
NASA's Physical Oceanography DAAC (PO.DAAC) completed the public release and announcement of the Rapid Scatterometer (RapidScat) Level 2B Climate Version 2.0 dataset:
Footprints_V2.0. Prior to the release, PO.DAAC re-ingested all granules for the dataset after the data provider corrected the missing co-located Sea Surface Temperature (SST) data in the NetCDF files.
Last Updated: Jan 10, 2020 at 10:17 AM EST