1,546 Works

SAFARI 2000 BVOC Measurements at Skukuza and Maun Flux Towers, Wet Season 2001

A.B. GUENTHER, P. HARLEY, J.P. GREENBERG & L. OTTER
Biogenic volatile organic compound (BVOC) emissions were measured in a Colophospermum mopane woodland near Maun, Botswana, and in a Combretum-Acacia savanna in Kruger National Park, 13 km from Skukuza, Republic of South Africa (RSA) during the 2001 wet season campaign of SAFARI 2000. In addition, relaxed eddy accumulation (REA) measurements of BVOC fluxes were made on flux towers at these sites, where net CO2 emissions were also measured simultaneously. The investigators also took advantage of...

Chemical and hydrographic profile measurements during the West Coast Ocean Acidification Cruise WCOA2013 (August 3-29, 2013)

R.A. Feely, S.R. Alin, B. Hales, G.C. Johnson, R.H. Byrne, W.T. Peterson, X. Liu & D. Greeley

BOREAS TE-05 Soil Respiration Data

J.R. BROOKS & L. FLANAGAN
The BOREAS group TE-05 collected measurements in the NSA and SSA on gas exchange, gas composition and tree growth. Soil respiration data collected in the BOREAS NSA and SSA to compare the soil respiration rates in different forest sites using a Li-Cor 6200 soil respiration chamber (model 6299).

LBA-ECO TG-07 Forest Structure Measurements for GLAS Validation: Santarem 2004

M.M. KELLER, R.C.D. OLIVEIRA, P.C.D. CAMARGO, F.D.B. ESPARITO-SANTO & M.O. HUNTER
This data set provides the results of a GLAS (the Geoscience Laser Altimeter System) forest structure validation survey conducted in Santarem and Sao Jorge, Para during November 2004 (Lefsky et al., 2005). DBH, total height, commercial height, canopy width and canopy class description were measured for 11 primary forest sites in Santarem along two 75m transects per GLAS measurement. For 10 secondary forest sites in Sao Jorge, the number of stems 0-2cm, 2-5cm, 5-10cm, and...

AfriSAR: Canopy Structure Derived from PolInSAR and Coherence TomoSAR NISAR tools

M. LAVALLE, B.V. RIEL, G. SHIROMA & B.P. HAWKINS
This dataset contains forest vertical structure and associated uncertainty products derived by applying multi-baseline Polarimetric Interferometric Synthetic Aperture Radar (PolInSAR) and Polarimetric Coherence Tomographic SAR (PCT or PC-TomoSAR) techniques. The data were collected from multiple repeat-pass flights over Gabonese forests using the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) instrument in February-March 2016. In addition, supplementary data products based on various intermediate parameters of the UAVSAR data are provided and include radar backscatter, coherence, and...

BOREAS Follow-On DSP-10 Reclassified Regridded TM Mosaic Land Cover Maps, 1994

F.G. HALL, G. RAPALEE & D.E. KNAPP
These images were produced by aggregating a reclassified version of the 30-m land cover Thematic Mapper classification by CCRS and are now available at multiple resolutions (10x5 minutes, and 30 minutes). These data were regridded for use by the BOREAS Follow-on Carbon and Hydro-Meteorological modeling groups. Characteristics of the individual products are described in the data set guide document.

GLODAPv2 mapped climatologies

S.K. Lauvset, R.M. Key, A. Olsen, S. Van Heuven, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterstrom, R. Steinfeldt, E. Jeansson, M. Ishi, F.F. Perez & T. Suzuki

CMS: Forest Carbon Stocks, Emissions, and Net Flux for the Conterminous US: 2005-2010

S. HAGEN, N. HARRIS, S.S. SAATCHI, T. PEARSON, C.W. WOODALL, S. GANGULY, G.M. DOMKE, B.H. BRASWELL, B.F. WALTERS, J.C. JENKINS, S. BROWN, W.A. SALAS, A. FORE, Y. YU, R.R. NEMANI, C. IPSAN & K.R. BROWN
This data set provides maps of estimated carbon in forests of the 48 continental states of the US for the years 2005-2010. Carbon (termed committed carbon) stocks were estimated for forest aboveground biomass, belowground biomass, standing dead stems, and litter for the year 2005. Carbon emissions were estimated from land use conversion to agriculture, insect damage, logging, wind, and weather events in the forests for the years 2006 - 2010. Committed net carbon flux was...

ATom: Black Carbon Mass Mixing Ratios from ATom-1 Flights

J.M. KATICH, J.P. SCHWARZ, K. FROYD, B. WEINZIERL, M. DOLLNER, T.P. BUI, C.S. CHANG & J.M. DEAN-DAY
This dataset provides black carbon (BC) mass mixing ratios (in units of ng BC / kg air) measured during NASA's Atmospheric Tomography (ATom)-1 flight campaign during July and August 2016. The BC ratios were measured by the Single Particle Soot Photometer (SP2) and Particle Analysis by Laser Mass Spectrometry (PALMS) instruments. Included here are also associated latitude, longitude, altitude, and the timestamp of each measurement. We also include data from the cloud aerosol spectrometer (CAS)...

LBA-ECO LC-31 Simple Tropical Ecosystem Model

S.N.M. SANTOS & M.H. COSTA
This model product provides the Fortran source code and input data for the Simple Tropical Ecosystem Model (SITE). SITE is a simplified point model of vegetation dynamics that uses an integration interval of one hour to estimate the fluxes of CO2, water, and energy. Model forcing data are hourly meteorological parameters. SITE is a simplified model of vegetation dynamics for tropical ecosystems developed by Santos and Costa (2004). Model input data measurements of temperature, wind...

VEMAP 2: U.S. Daily Climate Change Scenarios

T.G.F. KITTEL, N.A. ROSENBLOOM, C. KAUFMAN, J.A. ROYLE, C. DALY, H.H. FISHER, W.P. GIBSON, S. AULENBACH, R. MCKEOWN, D.S. SCHIMEL & VEMAP2 PARTICIPANTS
The Vegetation/Ecosystem Modeling and Analysis Project (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 patterns, such as El Nino/Southern Oscillation(ENSO). Development of the data set is reported in...

BOREAS RSS-01 PARABOLA SSA Surface Reflectance and Transmittance Data

D.W. DEERING & T.F. ECK
The BOREAS RSS-01 team collected surface reflectance and transmittance data from three forested sites in the SSA. This data set contains averaged reflectance factors and transmitted radiances measured by the PARABOLA instrument at selected sites in the BOREAS SSA at different view angles and at three wavelength bands throughout the day. PARABOLA measurements were made during each of the three BOREAS IFCs during the growing season of 1994 at three SSA tower flux sites as...

VEMAP 2: U.S. Daily Climate, 1895-1993

T.G.F. KITTEL, N.A. ROSENBLOOM, C. KAUFMAN, J.A. ROYLE, C. DALY, H.H. FISHER, W.P. GIBSON, S. AULENBACH, R. MCKEOWN, D.S. SCHIMEL & VEMAP2 PARTICIPANTS
The Vegetation/Ecosystem Modeling and Analysis Project (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 modesl to historical time series and projected scenarios of climate, atmospheric CO2, and N-Deposition, and N-Deposition

NPP Tropical Forest: Darien, Panama, 1967-1968, R1

F.B. GOLLEY
This NPP data set contains one ASCII file (.txt format). The data file contains above- and below-ground biomass, litterfall, LAI, vegetation/soil micro-nutrient content (P, K, Ca, Mg, etc.), and above-ground net primary productivity (ANPP) estimates for transitional moist/dry tropical forests at Rio Lara (wet season site) and Rio Sabana (dry season site) in Darien Province, Panama. Field measurements were made in 1967 and 1968. No climate data are provided. Apart from litter quantity, most of...

SE-590 Field-Meas. Reflectances (OTTER)

A.H. STRAHLER
Spectral reflectance measurements made by Spectron SE590 instruments in the context of validation of geometric-optical BRDF models.

BOREAS CD-ROM Set, 12 disks

J.A. NEWCOMER, D. LANDIS, S. CONRAD, S. CURD, K.F. HUEMMRICH, D.E. KNAPP, A. MORRELL, J.E. NICKESON, A. PAPAGNO, D. RINKER, R. STRUB, T. TWINE, F.G. HALL & P.J. SELLERS
The BOREAS CD-ROM set is a 12-disk collection containing point data sets and selected image and vector data from the Boreal Ecosystem-Atmosphere Study, which was conducted during 1994-1996. Additional image and vector data are available on-line through the ORNL DAAC Web site. Cite this CD-ROM set as follows: Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and...

LBA-ECO CD-02 Leaf Water Potential, Forest and Pasture Sites, Para, Brazil: 2000-2001

D. ALMEIDA, T.F. DOMINGUES, J.R. EHLERINGER, L.A. MARTINELLI, C. COOK, L. FLANAGAN, J.A. BERRY & J.P.H.B. OMETTO
Data are reported for leaf water potential of leaves of seven species of trees and lianas from the primary forest at the km 67 Tower Site, Tapajos National Forest, and measurements of five sapling tree species and the grass Brachiaria brizantha from a pasture site located near the km 77 Pasture Tower Site, approximately 10 km from the primary forest site. The research area is situated within the Tapajos National Forest reserve, south of the...

MODIS Collection 6 Land Product Subsets Web Service

ORNL DAAC
The MODIS Web Service provides data access capabilities for Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 land products. The web service provides data access functions for users to execute on their local computing resources. The MODIS Web Service is built upon the ORNL DAAC's MODIS Global Subsetting and Visualization Tool that provides customized subsets and visualization of MODIS land products for any land location on earth. With the web service users can retrieve land product...

LBA-ECO CD-04 Leaf Area Index, km 83 Tower Site, Tapajos National Forest, Brazil

A.M.S. FIGUEIRA, C.A.D. DE SOUSA, M.C. MENTON, R.N. JUAREZ, H.R. DA ROCHA, S.D. MILLER & M.L. GOULDEN
Leaf area index was estimated in an 18 ha plot at the logged forest tower site, km 83, Tapajos National Forest, Para, Brazil. The plot was adjacent to the eddy flux tower at km 83, Tapajos National Forest, Para, Brazil. Thirty litter traps were placed at 25-m intervals along two eastâ west transects in the 18 ha block. Litter samples were collected biweekly from the traps and returned to the lab where they were sorted,...

BOREAS/AES MARS-II 15-minute Surface Meteorological Data: 1994

G.B. ATKINSON & B. FUNK
Canadian AES personnel collected several data sets related to surface and atmospheric meteorological conditions over the BOREAS region. This data set contains 15-minute meteorological data from six MARSII meteorology stations in the BOREAS region in Canada. Parameters include site, time, temperature, dewpoint, visibility, wind speed, wind gust, wind direction, two cloud groups, precipitation, and station pressure. Temporarily, the data cover the period of May to September 1994. Geographically, the stations are spread across the provinces...

ABoVE: Wildfire Date of Burning within Fire Scars across Alaska and Canada, 2001-2015

T.V. LOBODA & J.V. HALL
This dataset provides estimates of wildfire progression, as represented by date of burning (DoB), within fire scars across Alaska and Canada for the period 2001-2015. The estimated DoB was derived using an algorithm for identifying the first fire occurrence from the Moderate Resolution Imaging Spectroradiometer (MODIS) active fire detection product (MCD14ML, Collection 6) and to determine all dates of burning within fire scars. Burn scar locations were from the Alaskan Interagency Coordination Center (AICC) and...

NACP Regional: National Greenhouse Gas Inventories and Aggregated Gridded Model Data

Y. WEI, D.J. HAYES, M.M. THORNTON, W.M. POST, R.B. COOK, P.E. THORNTON, A.R. JACOBSON, D.N. HUNTZINGER, T.O. WEST, L.S. HEATH, B. MCCONKEY, G. STINSON, W. KURZ, B. DE JONG, I.T. BAKER, J.M. CHEN, F. CHEVALLIER, F.M. HOFFMAN, A.K. JAIN, R. LOKUPITIYA, D.A. MCGUIRE, A.M. MICHALAK, G.G. MOISEN, R.P. NEILSON, P. PEYLIN … & M. ZHAO
This data set provides two products that were derived from the recently published North American Carbon Program (NACP) Regional Synthesis 1-degree terrestrial biosphere model (TBM) and inverse model (IM) outputs (Gridded 1-deg Observation Data and Biosphere and Inverse Model Outputs, Wei et al., 2013). The first product is the aggregation of the standardized gridded 1-degree TBM and IM outputs to the Greenhouse Gas (GHG) inventory zones as defined for North America (United States, Canada, and...

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