The SPURS (Salinity Processes in the Upper Ocean Regional Study) project is a NASA-funded oceanographic process study and associated field program that aim to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. The project is comprised of two field campaigns and a series of cruises in regions of the Atlantic and Pacific Oceans exhibiting salinity extremes. SPURS employs a suite of state-of-the-art in-situ sampling technologies that, combined with remotely sensed salinity fields from the Aquarius/SAC-D, SMAP and SMOS satellites, provide a detailed characterization of salinity structure over a continuum of spatio-temporal scales. The SPURS-2 campaign involved two month-long cruises by the R/V Revelle in August 2016 and October 2017 combined with complementary sampling on a more continuous basis over this period by the schooner Lady Amber. Focused around a central mooring located near 10N,125W, the objective of SPURS-2 was to study the dynamics of the rainfall-dominated surface ocean at the western edge of the eastern Pacific fresh pool subject to high seasonal variability and strong zonal flows associated with the North Equatorial Current and Countercurrent. Two saildrones were deployed over a month period during the second SPURS-2 R/V Revelle cruise in 2017. Saildrone is a state-of-the-art, remotely guided, wind and solar powered unmanned surface vehicle (USV) capable of long distance deployments lasting up to 12 months. It is equipped with a suite of instruments and sensors providing high quality, georeferenced, near real-time, multi-parameter surface ocean and atmospheric observations while transiting at typical speeds of 3-5 knots. Saildrone data files are in netCDF format and CF/ACDD/NCEI compliant. They contain the saildrone platform telemetry and near-surface observational data (air temperature, sea surface skin and bulk temperatures, salinity, oxygen and chlorophyll-a concentrations, barometric pressure, wind speed and direction) for the entire cruise at 1 minute temporal resolution.

DISCOVER-AQ_Aircraft_Navigational_Data_P3B are NASA P-3B aircraft navigational and meteorological data collected during the first deployment of the Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality project (DISCOVER-AQ).

DISCOVER-AQ_Ground_insitu_Aerosol_Data are ground-based in-situ measurements of aerosol properties in University of Maryland, Baltimore County (UMBC) site during the first deployment of the Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality project (DISCOVER-AQ).

DISCOVER-AQ_Ground_insitu_TraceGas_UV_Data are ground-based in-situ trace gas and UV measurements at Edgewood Site made during the first deployment of the Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality project (DISCOVER-AQ).

DISCOVER-AQ_Ozonesonde_Data are ozonesonde vertical profiles measured during the first deployment of the Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality project (DISCOVER-AQ). Data are from Ozonesondes launched from Beltsville and Edgewood, in June and July, 2011.

An integrated input data set for ecosystem and vegetation modeling for the conterminous United States. The data set is a ~100 year gridded monthly time series of climate that includes realistic interannual variability.

Data sets of transient climate change scenarios based on coupled atmosphere-ocean general circulation model (AOGCM) transient climate experiments with transient greenhouse gas and sulfate aerosol forcing.

VEMAP Phase 2 has developed a data set of ~100-year gridded monthly and daily time series of climate for the conterminous United States that includes realistic interannual variability. This data set has been used to compare time-dependent ecological responses of biogeochemical and coupled biogeochemical-biogeographical models to historical time series and projected scenarios of climate, atmospheric CO2, and N-Deposition, and N-Deposition

VEMAP Phase 2 has developed a number of transient climate change scenarios based on coupled atmosphere-ocean general circulation model (AOGCM) transient climate experiments. The purpose of these scenarios is to reflect time-dependent changes in surface climate from AOGCMs in terms of both (1) long-term trends and (2) changes in multiyear (3-5 yr) to decadal variability, such as El Nino/Southern Oscillation (ENSO).

An integrated input data set for ecosystem and vegetation modeling for the conterminous United States. The data set is a ~100 year fully gridded annual time series of climate that includes realistic interannual variability.