1,630 Works

Global Soil Types, 1-Degree Grid (Zobler)

L. ZOBLER
A global data set of soil types is available at 1-degree latitude by 1-degree longitude resolution. There are 26 soil units based on Zobler s assessment of FAO Soil Units (Zobler, 1986). The data set was compiled as part of an effort to improve modeling of the hydrologic cycle portion of global climate models. A more extensive version of these data, including 106 soil units as well as soil texture and slope, is available from...

BOREAS TE-18 Landsat TM Maximum Likelihood Classification Image of the SSA

F.G. HALL & D.E. KNAPP
A Landsat-5 TM image from 06-Aug-1990 was used to derive this classification. The objective of this classification is to provide the BOREAS investigators with a data product that characterizes the land cover of the SSA. A standard supervised maximum likelihood approach was used to produce this classification. Companion files include example thumbnail images that may be viewed using a convenient viewer utility.

BOREAS TE-18 Landsat TM Physical Classification Image of the NSA

F.G. HALL
The objective of this classification is to provide the BOREAS investigators with a data product that characterizes the land cover of the NSA. A Landsat-5 TM image from 21-Jun-1995 was used to derive the classification. A technique was implemented that uses reflectances of various land cover types along with a geometric optical canopy model to produce spectral trajectories. These trajectories are used as training data to classify the image into the different land cover classes....

BOREAS AFM-06 NOAA/ETL 35 GHz Cloud/Turbulence Radar GIF Images

R. BANTA, B.E. MARTNER & J. WILCZAK
The BOREAS AFM-06 team from the National Oceanic and Atmospheric Administration Environmental Technology Laboratory (NOAA/ETL) operated a 35 GHz cloud-sensing radar in the Northern Study Area (NSA) near the Old Jack Pine (OJP) tower from 16-Jul-1994 to 08-Aug-1994. This data set contains a time series of GIF (Graphical Interchange Format) images that show the structure of the lower atmosphere. Companion files include (1) an image inventory listing to inform users of the images that are...

BOREAS TE-19 Ecosystem Carbon Balance Model

S. FROLKING, J.D. ABER & C. LI
The BOREAS TE-19 team developed a model called the Spruce and Moss Model (SPAM) designed to simulate the daily carbon balance of a black spruce/moss boreal forest ecosystem. It is driven by daily weather conditions, and consists of four components: (1) soil climate; (2) tree photosynthesis and respiration; (3) moss photosynthesis and respiration; and (4) litter decomposition and associated heterotrophic respiration. The model simulates tree gross and net photosynthesis, wood respiration, live root respiration, moss...

BOREAS AFM-01 NOAA/ATDD Long-EZ Aircraft Flux Data over the SSA

T.L. CRAWFORD & D. BALDOCCHI
This data set contains measurements from the NOAA/ATDD Long-EZ Aircraft collected during the 1994 IFCs at the SSA. These measurements were made from various instruments mounted on the aircraft. The data that were collected include: aircraft altitude, wind direction, wind speed, air temperature, potential temperature, water mixing ratio, U and V components of wind velocity, static pressure, surface radiative temperature, downwelling and upwelling total radiation, downwelling and upwelling longwave radiation, net radiation, downwelling and upwelling...

BOREAS RSS-18 Sunphotometer Data over the SSA

J. CONEL & J.E. NICKESON
The BOREAS RSS-18 team collected ground-based sunphotometer data in support of AVIRIS remote sensing activities at the SSA. The following information was compiled by staff members of the BOReal Ecosystem-Atmosphere Study (BOREAS) Information System (BORIS) as part of their data documentation efforts.

BOREAS RSS-08 IFC-3 ADS-PSII Measurements of BRDF at SSA-OBS and SSA-OA Sites

J.-P. MULLER
Ground BRDF measurements were acquired by the Remote Sensing Science (RSS)-08 team to aid in the development of advanced spectral vegetation indices. The RSS-08 team measured reflectances at the double-scaffold towers in the Southern Study Area (SSA) Old Black Spruce (OBS) and Old Aspen (OA) sites during IFC-3 in 1994. The RSS-08 team also acquired stereo photography at the SSA-OA, SSA-OJP, and SSA-OBS sites during IFC-3.

BOREAS RSS-08 SSA IFC-3 Digitized Stereo Imagery at the OBS, OA, and OJP Sites

J.-P. MULLER
The RSS08 team acquired stereo photography from the double-scaffold towers at the Southern Study Area (SSA) Old Black Spruce (OBS), Old Aspen (OA), and Old Jack Pine (OJP) sites during IFC-3 in 1994. The imagery of the canopy was taken from various perspectives. The RSS08 team also measured BRDF at the SSA-OA and -OBS sites during IFC-3.

BOREAS TF-01 SSA-OA Understory Flux, Meteorological, and Soil Temperature Data

T.A. BLACK
The BOREAS TF-01 team collected energy, carbon dioxide, and momentum flux data under the canopy along with meteorological and soils data at the BOREAS SSA-OA site from mid-October to mid-November of 1993 and throughout all of 1994.

BOREAS TF-08 NSA-OJP Tower Flux, Meteorological, and Soil Temperature Data

D.R. FITZJARRALD
The BOREAS TF-08 team collected energy, CO2, and water vapor flux data at the BOREAS NSA-OJP site during the growing season of 1994 and most of the year for 1996.

Glacier photograph collection. Boulder, Colorado USA: National Snow and Ice Data Center/World Data Center for Glaciology

Oak Ridge National Laboratory Environmental Sciences Division

BOREAS RSS-14 GOES-8 Level-1 Visible, Infrared and Water Vapor Images

H.J. COOPER & E.A. SMITH
The BOREAS RSS-14 team collected and processed several GOES-7 and GOES-8 image data sets that covered the BOREAS study region. The level-1 BOREAS GOES-8 images are raw data values collected by RSS-14 personnel at FSU and delivered to BORIS. The data cover 14-Jul-1995 to 21-Sep-1995 and 01-Jan-1996 to 03-Oct-1996. The data start out containing three 8-bit spectral bands and end up containing five 10-bit spectral bands. No major problems with the data have been identified....

BOREAS RSS-18 Level 1b AVIRIS At-Sensor Radiance Imagery

R.O. GREEN & J.A. NEWCOMER
These data were collected and processed by the BOReal Ecosystem-Atmosphere Study (BOREAS) Remote Sensing Science Team 18 (RSS-18) at the National Aeronautics and Space Administration (NASA) Jet Propulsion Laboratory (JPL). Data were acquired for BOREAS with NASA's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). This optical sensor measures images that consist of spectra from 400 to 2500 nm at 10 nm sampling. These spectra are acquired as images with 20 meter spatial resolution, 11 km swath width...

BOREAS TE-18 Biomass Density Image of the SSA

F.G. HALL
This biomass density image covers almost the entire BOREAS SSA. The pixels for which biomass density is computed include areas that are in conifer land cover classes only. The biomass density values represent the amount of overstory biomass (i.e. tree biomass only) per unit area. It is derived from a Landsat-5 TM image collected on 02-Sep-1994. The technique that was used to create this image is very similar to the technique that was used to...

BOREAS TF-04 SSA-YJP Tower Flux, Meteorological, and Canopy Condition Data, R1

DEAN ANDERSON, R. STRIEGL & K.P. WICKLAND
The BOREAS TF-04 team collected energy, carbon dioxide, and water vapor flux data at the BOREAS SSA-YJP site during the growing season of 1994. In addition, meteorological data were collected both above and within the canopy.

BOREAS TF-11 SSA Fen 1996 Water Surface Film Capping Data

D.P. BILLESBACH & S.B. VERMA
The BOREAS TF-11 team gathered a variety of data to complement their tower flux measurements collected at the SSA Fen site. The data described in this document were made by the TF-11 team at the SSA Fen site to quantify the effect that the films observed to form on open water surfaces had on the transfer of carbon dioxide and methane from the water to the air. Measurements of fluxes of carbon dioxide and methane...

BOREAS TF-11 SSA Fen Soil Surface CO2 Flux Data

T.J. ARKEBAUER & S.B. VERMA
The BOREAS TF-11 team gathered a variety of data to complement their tower flux measurements collected at the SSA Fen site. These data are soil surface CO2 flux data at the SSA Fen site from 27-May-1994 to 23-Sep-1994 and from 13-May-1995 to 3-Oct-1995. A portable gas exchange system was used to make these measurements.

BOREAS RSS-19 1994 CASI At-Sensor Radiance and Reflectance Images

J.R. MILLER & J.R. FREEMANTLE
The RSS-19 team collected CASI images from the Chieftain Navaho aircraft in order to observe the seasonal change in the radiometric reflectance properties of the boreal forest landscape. CASI was deployed as a site-specific optical sensor during BOREAS field campaigns. Image data were collected with CASI on 36 days during five field campaigns between February and September 1994, primarily at flux tower sites located at study sites near Thompson, Manitoba, and Prince Albert, Saskatchewan. A...

BOREAS TE-20 Soils Data over the NSA-MSA and Tower Sites in Vector Format

H. VELDHUIS
The BOREAS TE-20 team collected several data sets for use in developing and testing models of forest ecosystem dynamics. This data set contains vector layers of soil maps that were received from Dr. Hugo Veldhuis, who did the original mapping in the field during 1994. The vector layers were converted to ARC/INFO EXPORT files. These data cover 1-kilometer diameters around each of the NSA tower sites, and another layer covers the NSA-MSA.

Global Distribution of Plant-Extractable Water Capacity of Soil (Dunne)

K.A. DUNNE & C.J. WILLMOTT
Plant-extractable water capacity of soil is the amount of water that can be extracted from the soil to fulfill evapotranspiration demands. It is often assumed to be spatially invariant in large-scale computations of the soil-water balance. Empirical evidence, however, suggests that this assumption is incorrect. This data set provides an estimate of the global distribution of plant-extractable water capacity of soil. A representative soil profile, characterized by horizon (layer) particle size data and thickness, was...

BOREAS TGB-04 Water and Sediment Temperature Data over the NSA-BP (Beaver Pond)

N.T. ROULET
The BOREAS TGB-04 team collected several data sets in support of their flux tower measurements at the NSA Beaver Pond site. This data set contains water and sediment temperature data collected from May to September 1994.

BOREAS/SRC AMS Suite A Surface Meteorological and Radiation Data: 1996

H. OSBORNE, K. YOUNG, V. WITTROCK & S.R. SHEWCHUK
The Saskatchewan Research Council (SRC) collected surface meteorological and radiation data from December, 1993 until Decemb er 1996. The data set is comprised of the Suite A (meteorological and energy balance measurements) and Suite B (diffuse sol ar and longwave measurements) components. Suite A measurements were taken at each of ten sites and suite B measurements were made at five of the suite A sites. These data cover an area of roughly 1000 km by...

NPP Grassland: Tumugi, China, 1981-1990, R1

X. XIAO & D.S. OJIMA
This data set contains four ASCII files (.txt format). Three files contain monthly above- and below-ground biomass data, one data file for each cold meadow steppe studied from 1981 to 1990 at Tumugi, Xingan League, in eastern Inner Mongolia, China (approximately 46.10 N, 123.00 E, Elevation 191 m). The fourth file contains climate data recorded at a weather station located in the study area for the length of the study. The Tumugi study sites consist...

NPP Multi-Biome: TEM Calibration Data, 1992, R1

D.W. KICKLIGHTER
This data set contains one ASCII data file (.csv format) that is known as the "TEM data set." The data provide pool sizes and fluxes of carbon (C) and nitrogen (N) for 16 globally distributed field sites that represent a wide range of terrestrial biomes, tundra to tropical forest, but exclude wetlands. The NPP data were extracted from the literature. They were not previously widely available to the ecosystem modeling community in electronic form until...

Registration Year

  • 2020
    41
  • 2019
    93
  • 2018
    73
  • 2017
    89
  • 2016
    116
  • 2015
    42
  • 2014
    58
  • 2013
    79
  • 2012
    1,039

Resource Types

  • Collection
    1,537
  • Dataset
    90
  • Text
    2