58 Works

LBA-ECO LC-22 Field Validation of MODIS Deforestation Detection, Brazil, 2005

R.S. DEFRIES, Y.E. SHIMABUKURO, D.C. MORTON, L.O. ANDERSON & F.D.B. ESPARITO-SANTO
This data set contains field observations, corresponding GPS points, and point and polygons of deforested areas in the state of Mato Grosso, Brazil, for the period March 17-24,2005. Fieldwork was conducted in the regions surrounding Sinop, Mato Grosso, with specific emphasis on large clearings occurring in the Xingu Basin. The field campaign was designed to validate preliminary MODIS deforestation products designed to detect deforestation during the wet season. There are five data files with this...

Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 2

P.E. THORNTON, M.M. THORNTON, B.W. MAYER, N. WILHELMI, Y. WEI, R. DEVARAKONDA & R.B. COOK
This data set provides Daymet output data as mosaicked gridded estimates of daily weather parameters for North America, including continuous surfaces of day length, precipitation, shortwave radiation, snow water equivalent, maximum air temperature, minimum air temperature, and water vapor pressure. The Daymet data product was derived from selected meteorological station data by interpolation and extrapolation algorithms. The data product covers the period January 1, 1980 to December 31 of the most recently processed calendar year...

LBA-ECO CD-17 Secondary Forest Survey, Para and Rondonia, Brazil: 2002-2003

W.A. SALAS, D.S. ALVES, M.J. DUCEY, D.J. ZARIN & J. QI
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 Rondonia, Brazil, from 2002-2003. The forest areas were defined as Type A and Type B stands. Measurements were made in the overstory, understory, and midstory of each stand. Type A stands were sampled intensively, with the goal of providing high-fidelity spatial information about...

LBA-ECO LC-02 Biophysical Measurements of Forests, Acre, Brazil: 1999-2002

D. SELHORST & I.F. BROWN
This data set provides diameter at breast height (DBH) measurements for 1,063 trees located at the Catuaba Experimental Farm, and 812 trees located in the Humaita Forest Reserve. Both sites are in the state of Acre, southwest Amazonia, Brazil. Measurements were made on individuals with DBH between 10 and 35 cm and individuals with DBH > 35 cm. The Catuaba Experimental Farm is part of a forest fragment of approximately 800 ha. The Humaita Forest...

Soil Carbon Estimates in 20-cm Layers to 1-meter Depth, Conterminous US, 1970-1993

T.O. WEST
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 Geographic Database, Soil Survey Staff, 1994) data were used to estimate by 20-cm intervals to a 1-m depth the mean soil carbon for each of the STATSGO-delineated soil map units. These map units are the polygons represented in the provided Shapefile...

Tree Canopy Cover for the Circumpolar Taiga-Tundra Ecotone: 2000-2005

K.J. RANSON, P.M. MONTESAN & R. NELSON
This data set provides a map of selected areas with defined tree canopy cover over the circumpolar taiga-tundra ecotone (TTE). Canopy cover was derived from the 500-meter MODIS Vegetation Continuous Fields (VCF) product as averaged over six years from 2000-2005 and processed as described in Ranson et al. (2011). This process identified patches of low tree canopy cover which are indicative of the transition from forest to tundra and differentiate the circumpolar taigaâ tundra ecotone...

NACP CMS: Land Cover Projections (5.6-km) from GCAM v3.1, Conterminous US, 2005-2095

T.O. WEST & Y. Le Page
The data provided are annual land cover projections for years 2005 through 2095 generated by the Global Change Assessment Model (GCAM) Version 3.1. For the conterminous USA, the GCAM global gridded results were downscaled to ~5.6 km (0.05 degree) resolution. For each 5.6 x 5.6 km area, the annual land cover percentage comprised by each of the nineteen different land cover classes/plant functional types (PFTs) of the Community Land Model (CLM) (Table 1) are provided....

ISLSCP II Reanalysis Near-Surface Meteorology Data

P. DIRMEYER, M. ZHAO, G. WHITE & W. EBISUZAKI
This data set for the ISLSCP Initiative II data collection provides near surface meteorological variables, fluxes of heat, moisture and momentum at the surface, and land surface state variables, all with a spatial resolution of 1 degree in both latitude and longitude. There are four temporal categories of data: time invariant and monthly mean annual cycle fields (together referred to as "fixed" fields), monthly mean fields, monthly 3-hourly diurnal, and 3-hourly fields. Two types of...

Global Ocean Surface Water Partial Pressure of CO2 Database: Measurements Performed During 1957-2013 (Version 2013)

T. Takahashi, S. Sutherland & A. Kozyr

LBA-ECO CD-06 Biogeochemistry of Ji-Parana River and Tributaries, Brazil: 1999-2003

J.E. RICHEY, A.V. KRUSCHE, R.L. VICTORIA, M.V.R. BALLESTER, N.K. LEITE, B.M. GOMES, M.A. BOLSON, S.G. NETO & A.A. MONTEBELO
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 major nutrient ions, dissolved organic and inorganic carbon, pH, temperature, dissolved oxygen, and conductivity were measured in Ji-Parana River and tributary samples at the defined seasonal or monthly intervals. Dominant landuse/landcover classes, slope, and soil cation exchange capacity are included for each of the extensive sampling locations derived...

CMS: LiDAR-derived Estimates of Aboveground Biomass at Four Forested Sites, USA

B.D. COOK, A. SWATANTRAN, L. DUNCANSON, A. ARMSTRONG, N. PINTO & R.F. NELSON
These data consist of high-resolution maps of aboveground biomass at four forested sites in the US: Garcia River Tract in California, Anne Arundel and Howard Counties in Maryland, Parker Tract in North Carolina, and Hubbard Brook Experimental Forest in New Hampshire. Biomass maps were generated using a combination of field data (forest inventory and Lidar) and modeling approaches. Estimates of uncertainty are also provided for the Maryland site using two different modeling methodologies. These data...

LBA-ECO ND-08 Soil Respiration, Soil Fractions, Carbon and Nitrogen, Para, Brazil

T.P. BELDINI & K. MCNABB
This data set provides (1) carbon (C) and nitrogen (N) concentration measurements of two soil aggregate fractions (250-2000 micon, small macro-aggregates (SMAG)), and (53-250 micron (micro-aggregates (mico)) and (2) in situ soil respiration measurements (January-March 2003) on sand and clay soils from a Eucalyptus plantation and an adjacent primary forest. The soils for fractionation were sampled in July 2001 from 0-20 cm and 30-50 cm depths. The research site was on the property of Jari...

LBA-ECO LC-22 Field Validation of MODIS Deforestation Detection, Brazil, 2003-2004

R. DEFRIES, Y.E. SHIMABUKURO, D.C. MORTON, L.O. ANDERSON & F. DEL BON ESPIRITO-SANTO
This data set contains field observations, corresponding GPS points, and point and polygons of deforested areas in the state of Mato Grosso, Brazil, for the period August 2003 to July 2004. The field observations were conducted in the forested areas between Nova Mutum and Sinop, MT. These data were part of a study to validate Moderate Resolution Imaging Spectroradiometer (MODIS) data at 250-m resolution for the detection of deforested areas. There are 16 data files...

NACP Greenhouse Gases Multi-Source Data Compilation, 2000-2009

S.C. WOFSY & A. DAYALU
This data set is a collection of measurements of carbon dioxide (CO2) and non-CO2 greenhouse gases made across North America by nine independent atmospheric monitoring networks from 2000 - 2009. During this North American Carbon Program (NACP) sponsored activity, data were compiled from the following networks: AGAGE, COBRA, CSIRO, INTEX-A, INTEX B, Irvine Latitude Network, NOAA CMDL, SCRIPPS, and Stanley Tyler-UC Irvine. The files presented here are the products of merging multiple original measurement results...

Underway air and surface seawater pCO2 data measured on board the R/V Keifu Maru during the 2001-2012 cruises

Oak Ridge National Laboratory Environmental Sciences Division

Hydrographic and Chemical data during the R/V Atlantis CMDL2 Cruise in 2006

Oak Ridge National Laboratory Environmental Sciences Division

Oceanic anthropogenic CO2 estimates from an ocean circulation inverse model

Oak Ridge National Laboratory Environmental Sciences Division

A Global Database of Soil Respiration Data, Version 3.0

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

LBA-ECO LC-21 Soil Characteristics, Logged Areas, Tapajos Forest, Para, Brazil: 2003

G.P. ASNER & L.P. OLANDER
This data set provides measurements for soil nutrients from areas that were selectively logged and from control areas in the Tapajos National Forest, Para Western Santarem, Brazil. Data are included for calcium (Ca), phosphorus (P), magnesium (Mg), nitrogen (N), aluminum (Al), iron (Fe), silicon (Si), carbon 13, nitrogen 15, and potassium (K) concentrations. In addition, data are included for Phosphorus fractionation which was performed on a subset of the soils, and soil bulk density measurements....

LBA-ECO ND-04 Pasture Soil Water and Precipitation, Km 54, Manaus, Brazil: 1999-2001

S.A. WELCH

LBA-ECO LC-02 Tributary Coordinates, Acre River, Tri-national River Basin: 2003-2004

M.J. MALDONADO & I.F. BROWN
This data set provides coordinates for points at the mouth of tributaries of the Acre River in the Tri-national River Basin in South America. Three Global Positioning System (GPS) readings were made at the outlet of each tributary and the average of the three readings is reported. The Tri-national River Basin is located in the tri-national frontier region of Madre de Dios, Peru, Acre, Brazil, and Pando, Bolivia (known as the MAP region). The MAP...

Hydrographic and Chemical data during the R/V Thomas G. Thompson TPS24_1 Cruise in 1985

Oak Ridge National Laboratory Environmental Sciences Division

ISLSCP II ECMWF Near-Surface Meteorology Parameters

A.C.M. BELJAARS, A.K. BETTS & E. BROWN DE COLSTOUN
This data set for the ISLSCP Initiative II data collection provides meteorology data with fixed, monthly, monthly-6-hourly, 6-hourly, and 3-hourly temporal resolutions. The data were derived from the European Centre for Medium-range Weather Forecasts (ECMWF) near-surface meteorology data set, 40-year re-analysis, or ERA-40 (Simmons and Gibson, 2000), which covers the years 1957 to 2001. The data were processed onto the ISLSCP II Earth grid with a spatial resolution of 1-degree in both latitude and longitude,...

MODIS-derived Biophysical Parameters for 5-km Land Cover, North America, 2000-2012

K. ZHAO & R.B. JACKSON
This data set provides MODIS-derived surface biophysical climatologies of BRDF/albedo, land surface temperature, leaf area index (LAI), and evapotranspiration as separate files for each of the MODIS land cover types for North America. Each biophysical variable has temporal periods that represent the average of all 8-day periods from the years 2000 â 2012. The data have a spatial resolution of 0.05 degree (~5 km) and a temporal resolution of eight days. The extent of the...

A Global Data Set of Leaf Photosynthetic Rates, Leaf N and P, and Specific Leaf Area

A.P. WALKER
This global data set of photosynthetic rates and leaf nutrient traits was compiled from a comprehensive literature review. It includes estimates of Vcmax (maximum rate of carboxylation), Jmax (maximum rate of electron transport), leaf nitrogen content (N), leaf phosphorus content (P), and specific leaf area (SLA) data from both experimental and ambient field conditions, for a total of 325 species and treatment combinations. Both the original published Vcmax and Jmax values as well as estimates...

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