BOREAS TGB-12 Isotropic Carbon Dioxide Data Over the NSA
| Author | : Susan E. Trumbore |
| Publisher | : |
| Total Pages | : 15 |
| Release | : 2000 |
| Genre | : Carbon dioxide |
| ISBN | : |
Boreas Tgb 12 Isotropic Carbon Dioxide Data Over The Nsa
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Boreas Tgb-12 Soil Carbon Data Over the Nsa
| Author | : National Aeronautics and Space Adm Nasa |
| Publisher | : Independently Published |
| Total Pages | : 32 |
| Release | : 2018-09-13 |
| Genre | : Science |
| ISBN | : 9781720290957 |
The BOREAS TGB-12 team made measurements of soil carbon inventories, carbon concentration in soil gases, and rates of soil respiration at several sites to estimate the rates of carbon accumulation and turnover in each of the major vegetation types. TGB-12 data sets include soil properties at tower and selected auxiliary sites in the BOREAS NSA and data on the seasonal variations in the radiocarbon content of CO2 in the soil atmosphere at NSA tower sites. The sampling strategies for soils were designed to take advantage of local fire chronosequences, so that the accumulation of C in areas of moss regrowth could be determined. These data are used to calculate the inventory of C and N in moss and mineral soil layers at NSA sites and to determine the rates of input and turnover (using both accumulation since the last stand-killing fire and radiocarbon data). This data set includes physical parameters needed to determine carbon and nitrogen inventory in soils. The data were collected discontinuously from August 1993 to July 1996. The data are stored in tabular ASCII files.Trumbore, Susan and Hall, Forrest G. (Editor) and Conrad, Sara K. (Editor) and Harden, Jennifer and Sundquist, Eric and Winston, GregGoddard Space Flight CenterCARBON DIOXIDE; ANNUAL VARIATIONS; VEGETATION; INVENTORIES; SOILS; TOWERS; SOIL SCIENCE; SAMPLING; RESPIRATION; NITROGEN; MINERALS; FIRES; CHRONOLOGY
Boreas Tgb-5 Co2, Ch4 and Co Chamber Flux Data Over the Nsa
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 24 |
| Release | : 2018-06-16 |
| Genre | : |
| ISBN | : 9781721250745 |
The BOReal Ecosystem-Atmosphere Study Trace Gas Biogeochemistry (BOREAS TGB-5) team collected a variety of trace gas concentration and flux measurements at several NSA sites. This data set contains carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) chamber flux measurements conducted in 1994 at upland forest sites that experienced stand-replacement fires. These measurements were acquired to understand the impact of fires on soil biogeochemistry and related changes in trace gas exchange in boreal forest soils. Relevant ancillary data, including data concerning the soil temperature, solar irradiance, and information from nearby un-burned control sites, are included to provide a basis for modeling the regional impacts of fire and climate changes on trace gas biogeochemistry. The data are provided in tabular ASCII files. Burke, Roger and Hall, Forrest G. (Editor) and Conrad, Sara K. (Editor) and Zepp, Richard Goddard Space Flight Center NASA/TM-2000-209891/VOL229, Rept-2000-03136-0/VOL229, NAS 1.15:209891/VOL229
Boreas Tgb-12 Soil Carbon and Flux Data of Nsa-MSA in Raster Format
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 38 |
| Release | : 2018-05-29 |
| Genre | : |
| ISBN | : 9781720411710 |
The BOREAS TGB-12 team made measurements of soil carbon inventories, carbon concentration in soil gases, and rates of soil respiration at several sites. This data set provides: (1) estimates of soil carbon stocks by horizon based on soil survey data and analyses of data from individual soil profiles; (2) estimates of soil carbon fluxes based on stocks, fire history, drain-age, and soil carbon inputs and decomposition constants based on field work using radiocarbon analyses; (3) fire history data estimating age ranges of time since last fire; and (4) a raster image and an associated soils table file from which area-weighted maps of soil carbon and fluxes and fire history may be generated. This data set was created from raster files, soil polygon data files, and detailed lab analysis of soils data that were received from Dr. Hugo Veldhuis, who did the original mapping in the field during 1994. Also used were soils data from Susan Trumbore and Jennifer Harden (BOREAS TGB-12). The binary raster file covers a 733-km 2 area within the NSA-MSA.Hall, Forrest G. (Editor) and Knapp, David E. (Editor) and Rapalee, Gloria and Davidson, Eric and Harden, Jennifer W. and Trumbore, Susan E. and Veldhuis, HugoGoddard Space Flight CenterDATA PROCESSING; DATA REDUCTION; SOIL MAPPING; CARBON 14; ESTIMATES; SURVEYS; SOILS; RESPIRATION; POLYGONS; INVENTORIES; HORIZON; FIRES; ESTIMATING; DRAINAGE; DECOMPOSITION
BOREAS TGB-1 CH4 and CO2 Chamber Flux Data Over NSA Upland Sites
| Author | : Kathleen Savage |
| Publisher | : |
| Total Pages | : 14 |
| Release | : 2000 |
| Genre | : Biogeochemistry |
| ISBN | : |
The BOREAS TGB-3 team collected methane and carbon dioxide (CH4, CO2) chamber flux measurements at the NSA Fen, OBS, YJP, and auxiliary sites along Gillam Road and the 1989 burn site. Gas samples were extracted from chambers and analyzed at the NSA lab facility approximately every 7 days during May to September 1994 and June to October 1996. The data are provided in tabular ASCII files.
