1,600 Works

ABoVE: Fractional Open Water Cover for Pan-Arctic and ABoVE-Domain Regions, 2002-2015

J. DU, J.S. KIMBALL & J.D. WATTS
This data set provides land surface fractional open water cover maps for two overlapping regions: the entire pan-Arctic region (latitude >= 45 degrees) and the Arctic-Boreal Vulnerability Experiment (ABoVE) domain across Alaska and Canada. The data represent a fractional water average over a 10-day time step at 5-km spatial resolution for the period 2002-2015. Data represent the aerial portion of a grid cell covered by open water. The data were produced using high frequency (89...

A Global Database of Soil Respiration Data, Version 1.0

B.P. BOND-LAMBERTY & A.M. THOMSON
This data set provides a soil respiration data database (SRDB), a near-universal compendium of published soil respiration (RS) data. Soil respiration, the flux of autotropically- and heterotrophically-generated CO2 from the soil to the atmosphere remains the least well-constrained component of the terrestrial C cycle. The database encompasses all published studies that report one of the following data measured in the field (not laboratory): annual RS, mean seasonal RS, a seasonal or annual partitioning of RS...

BOREAS AFM-03 Electra 1994 Aircraft Flux and Moving Window Data

D.H. LENSCHOW
The BOREAS AFM-03 team used the NCAR Electra aircraft data to make measurements of the fluxes of momentum, sensible and latent heat, carbon dioxide, and ozone over the entire BOREAS region to tie together measurements made in both the SSA and the NSA. These data were also used to study the planetary boundary layer using both in situ and remote sensing measurements. This data set contains both the aircraft flux and the moving window data.

Arctic Vegetation Plots, Poplars, Arctic and Interior AK and YT, Canada, 2003-2005

A.L. BREEN, D.A. WALKER & L.A. DRUCKENMILLER
This data set provides vegetation cover and environmental plot data collected from 32 balsam poplar (Populus balsamifera L., Salicaceae) vegetation plots located on the Arctic Slope of Alaska and in the interior boreal forests of Alaska and the Yukon from 2003 to 2005. The estimated percent land cover by species per plot are according to the older Braun-Blanquet cover-abundance scale. Plot data includes moisture, topographic position, slope, aspect, shape, and soil data.

NWS Daily Climatology Data: 1972 (SNF)

F.G. HALL, K.F. HUEMMRICH, D.E. STREBEL, S.J. GOETZ, J.E. NICKESON & K.D. WOODS
Weather data were collected by the National Weather Service in International Falls, Minnesota. International Falls is about 80 miles from the SNF, but the weather data is representative of the area. Total solar insolation measurements were made at Fall Lake Dam in Winton, Minn. by Prof. Donald Baker of the Department of Soil Science at the University of Minnesota, St. Paul. Insolation values were measured using a Yellow Springs solar cell calibrated against an Eppley...

SAFARI 2000 Global Burned Area Map, 1-km, Southern Africa, 2000

JOINT RESEARCH CENTRE EUROPEAN COMMISSION
The Global Burned Area 2000 initiative (GBA2000) was launched by the Global Vegetation Mapping Unit of the Joint Research Centre of the European Commission, in partnership with several other institutions, to develop reliable and quantitative information on the global magnitude and spatial distribution of biomass burning. The objective of GBA2000 was to produce a map of the areas burned globally for the year 2000, using the medium resolution satellite imagery provided by the SPOT-VEGETATION (VGT)...

Optical Thickness Data: Aircraft (OTTER)

M.A. SPANNER
Airborne sun photometer data collected from 1990 through 1991 used to provide quantitative atmospheric correction to remotely sensed data of forest reflectance and radiance.

Site Averaged Neutron Soil Moisture: 1989 (Betts)

A.K. BETTS
The Site Averaged Neutron Soil Moisture Data: 1989 (Betts) Data Set contains the site averaged product data of the neutron probe soil moisture collected during the 1987-1989 FIFE experiment. Samples were averaged for each site, then averaged for each day. This data set includes only 1989 data.

Synthesis of Winter In Situ Soil CO2 Flux in pan-Arctic and Boreal Regions, 1989-2017

S. NATALI, J. WATTS, S. POTTER, B.M. ROGERS, S. LUDWIG, A. SELBMANN, P. SULLIVAN, B. ABBOTT, K. ARNDT, A.A. BLOOM, G. CELIS, T. CHRISTENSEN, C. CHRISTIANSEN, R. COMMANE, E. COOPER, P.M. CRILL, C.I. CZIMCZIK, S. DAVYDOV, J. DU, J. EGAN, B. ELBERLING, S.E. EUSKIRCHEN, T. FRIBORG, H. GENET, J. GOODRICH … & D. ZONA
This dataset provides a synthesis of winter non-growing season (NGS; September-April) in situ soil CO2 flux measurement data from locations across pan-Arctic and Boreal permafrost regions. The in situ data were compiled from 66 published and 21 unpublished studies conducted from 1989-2017. The data sources (publication references) are provided. Sampling sites spanned pan-Arctic Boreal and tundra regions (>53 Deg N) in continuous, discontinuous, and isolated/sporadic permafrost zones. The CO2 flux measurements were aggregated at the...

High Resolution Global Contiguous SIF Estimates Derived from OCO-2 SIF and MODIS

L. YU, J. WEN, C.Y. CHANG, C. FRANKENBERG & Y. SUN
This dataset provides high-resolution, spatially-contiguous, global solar-induced chlorophyll fluorescence (SIF) estimates at 0.05 degree (approx. 5 km at the equator) spatial and 16-day temporal resolution beginning in September 2014 and continuing to the present. This product, SIFoco2_005, was derived from Orbiting Carbon Observatory-2 (OCO-2) SIF observations was produced by training an artificial neural network (ANN) on the native OCO-2 SIF observations and MODIS BRDF-corrected seven-band surface reflectance along OCO-2's orbits. The trained ANN model was...

Ocean Surface pCO2 and Air-Sea CO2 Flux in the Northern Gulf of Mexico, 2006-2010

S. LOHRENZ, W. CAI, S. CHAKRABORTY, R. HE & H. TIAN
This dataset provides 1 km gridded monthly estimates of surface ocean partial pressure of CO2 (pCO2) and air-sea flux of CO2 (CO2 flux) for the northern Gulf of Mexico for the period 2006 through 2010. Estimates of pCO2 were derived from MODIS/Aqua satellite imagery in combination with ship-based observations. Estimates of CO2 flux were derived from estimates of seawater pCO2, wind fields, and atmospheric pCO2.

SAFARI 2000 Micro-Pulse Lidar Cloud and Aerosol Data, Dry Season 2000

J. WELTON, J. SPINHIRNE & J. CAMPBELL
Two Micro-Pulse Lidar (MPL) systems were deployed to Africa for the SAFARI 2000 experiment. One MPL was setup in Mongu, Zambia and the other was setup in Skukuza, South Africa. The primary focus of MPL work during SAFARI was to study the vertical distribution and optical properties of smoke from biomass burning in the region.

Arctic Vegetation Plots at Prudhoe Bay, Alaska, 1973-1980

D.A. WALKER
This data set provides environmental, soil, and vegetation data collected between 1973 and 1980 from 89 study plots in the Prudhoe Bay region of Alaska. Data includes the baseline plot information for vegetation, soils, and site factors for study plots subjectively located in 43 plant communities and 4 broad habitat types across the glaciated landscape. Specific attributes include: dominant vegetation, species, and cover; soil chemistry, physical characteristics, moisture, and organic matter. This product brings together...

Maps of Vegetation, NDVI, Snow and Thaw Depths: North Slope, Alaska and NWT, Canada

D.A. WALKER
This dataset includes vegetation cover maps, Normalized Difference Vegetation Index (NDVI) maps, snow depth and thaw depth data that were obtained as part of a biocomplexity project on the North Slope of Alaska, USA, and the Northwest Territories (NWT), Canada. In Alaska, seven sites are located along the Dalton Highway and in the Prudhoe Bay Oilfield area, forming a transect across the climate gradient of the North Slope. From South to North, the sites are...

ABoVE: Gridded 30-m Aboveground Biomass, Shrub Dominance, North Slope, AK, 2007-2016

L.T. BERNER, P. JANTZ, K.D. TAPE & S.J. GOETZ
This dataset includes 30-m gridded estimates of total plant aboveground biomass (AGB), the shrub AGB, and the shrub dominance (shrub/plant AGB) for non-water portions of the Beaufort Coastal Plain and Brooks Foothills ecoregions of the North Slope of Alaska. The estimates were derived by linking biomass harvests from 28 published field site datasets with NDVI from a regional Landsat mosaic derived from Landsat 5 and 7 satellite imagery. The data cover the period 2007-06-01 to...

BOREAS TE-10 Photosynthetic Response Data

E.M. MIDDLETON & J. SULLIVAN
The BOREAS TE-10 team collected several data sets in support of its efforts to characterize and interpret information on the gas exchange, reflectance, transmittance, chlorophyll content, carbon content, hydrogen content, nitrogen content, and photosynthetic response of boreal vegetation. This data set contains measurements of quantitative parameters and leaf photosynthetic response to increases in light conducted in the SSA during the growing seasons of 1994 and 1996 using an oxygen electrode system. Leaf photosynthetic responses were...

Soil Moisture Visualizer

ORNL DAAC
The goal of the Soil Moisture Visualizer (SMV) is to bring together multiple sources of soil moisture data available for North America into a single platform for visualization and download. The visualizer harmonizes surface and root zone soil moisture data sets that are in diverse native data formats and encompass a range of spatial footprints, soil depths, and measurement frequencies. The SMV consists of a web-based application for visualization and spatial subsetting of the soil...

BOREAS TE-21 Daily Surface Meteorological Data

J.S. KIMBALL
The BOREAS TE-21 team collected data sets in support of its efforts to characterize and interpret information on the meteorology of boreal forest areas. Daily meteorological data were derived from half-hourly BOREAS TF and AMS mesonet measurements collected in the SSA and NSA for the period of 01-Jan-1994 until 31-Dec-1994.

ISLSCP II River Routing Data (STN-30p)

C.J. VOROSMARTY & B.M. FEKETE
The Simulated Topological Network (STN-30p) data set provides the large-scale hydrological modeling community an accurate representation of the global river system at 0.5 degree and 1.0 degree spatial resolutions. STN-30p represents the potential connectivity of the continental land mass by assigning one of eight (E, SE, S, SW, W, NW, N, NE) possible flow directions to each continental grid cell (Jenson 1988, Band 1993). The potentiality of STN-30p reflects the fact that flow direction is...

Reflectance Reference Targets (OTTER)

J.R. MILLER, J.R. FREEMANTLE, M. BELANGER & Y. AWAYA
Spectral reflectance measurements of flat field targets as reference points representative of psuedo-invariant targets as measured by the Spectron SE590 spectrophotometer.

LBA-ECO LC-24 Historical Roads of the Legal Amazon: 1968-1993

R.T. WALKER, E.J. REIS & M.M. CALDAS
Understanding the impact of road investments on deforestation is part of a complete evaluation of the expansion of infrastructure for development.We find evidence of spatial spillovers from roads in the Brazilian Amazon: deforestation rises in the census tracts that lack roads but are in the same county as and within 100 km of a tract with a new paved or unpaved road. At greater distances from the new roads the evidence is mixed, including negative...

BOREAS TGB-01/TGB-03 CH4 Chamber Flux Data: NSA Fen

J.L. BUBIER, P.M. CRILL, R.K. VARNER & T.R. MOORE
The BOREAS TGB-03 team collected methane (CH4) chamber flux measurements at the NSA fen site during May-September 1994 and June-October 1996. Gas samples were extracted approximately every 7 days from chambers and analyzed at the NSA lab facility.

MMR Calibration Data (FIFE)

B.L. MARKHAM & C.L. WALTHALL
The MMR Calibration Data Set contains radiance data collected in the summer of 1987 and in July and August of 1989 via a Modular Multiband Radiometer (MMR) instrument. The MMR instrument monitored a nearly lambertian calibration panel stationed near the center of the FIFE study area. The radiances recorded from this instrument can be used to monitor solar insolation and clouds. In some cases, these data were also used to calculate the reflectance factor for...

ATom: L2 In Situ Measurements from Single Particle Soot Photometer (SP2)

J.P. SCHWARZ & J.M. KATICH
This dataset provides the refractory black carbon mass concentration at one-second resolution measured by the Single Particle Soot Photometer (NOAA SP2) instrument during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission. The SP2 is a laser-induced incandescence instrument primarily used for measuring the black carbon mass content of individual particles.

Canopy Height and Biomass from LiDAR Surveys at La Selva, Costa Rica, 1998 and 2005

G.C. HURTT, R.Q. THOMAS, J. FISK, R.O. DUBAYAH & S.L. SHELDON
This data set contains land-use, canopy height, and aboveground carbon estimates derived from LiDAR data collected at La Selva Biological Station in Costa Rica in March 1998 and March 2005. The data are provided as GeoTIFFs (*.tif) of 100-m (1-ha) resolution. A look-up table is provided that relates modeled changes in height to changes in stand characteristics (including age and carbon content). The data were used to test the accuracy and scale-dependency of high-resolution predictions...

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