Scientific and Technical Aerospace Reports Volume 39 April 6, 2001
Scientific and Technical Aerospace Reports Volume 39 April 6, 2001
Scientific and Technical Aerospace Reports Volume 39 April 6, 2001
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This data set contains information on the carbon isotopic content of carbon dioxide sampled from soils in the NSA-OBS, NSA-<br />
YJP, <strong>and</strong> NSA-OJP sites. Data were collected from 14-Nov-1993 to 10-Oct-1996. The data are stored in tabular ASCII files.<br />
Author<br />
Soils; Chemical Composition; Carbon Dioxide; Respiration; Vegetation<br />
<strong>2001</strong>0022511 NASA Goddard Space Flight Center, Greenbelt, MD USA<br />
BOREAS TGB-10 Oxidant Flux Data over the SSA<br />
Hall, Forrest G., Editor, NASA Goddard Space Flight Center, USA; Conrad, Sara K., Editor, Raytheon Information Technology<br />
<strong>and</strong> <strong>Scientific</strong> Services, USA; Westberg, Hal, Washington State Univ., USA; Hall, Brad, Washington State Univ., USA; Jackson,<br />
Andrea V., Lancaster Univ., UK; November 2000; 24p; In English<br />
Contract(s)/Grant(s): RTOP 462-33-01<br />
Report No.(s): NASA/TM-2000-209891/VOL242; NAS 1.15:209891/VOL242; Rept-2000-03136-0/VOL242; No Copyright;<br />
Avail: CASI; A03, Hardcopy; A01, Microfiche<br />
The BOREAS TGB-10 team collected several trace gas data sets in its efforts to determine the role of biogenic hydrocarbon<br />
emissions with respect to boreal forest carbon cycles. This oxidant data set contains measured peroxide (H2O2 <strong>and</strong> total organic<br />
peroxides (ROOH)) <strong>and</strong> ozone concentrations as well as H2O2 <strong>and</strong> ROOH deposition velocities. These data were obtained at the<br />
SSA-OJP site during the summer of 1994. Measurements were made from May to September 1994. The data are stored in tabular<br />
ASCII files. Some important results were: (1) Ozone concentrations were consistently low, 20-30 ppb, during the summer of 1994.<br />
(2) Peroxide concentrations showed a seasonal variation with highest concentrations occurring in July (IFC-2). (3) Midday H2O2<br />
levels averaged around 1.4 ppb during IFC-2 <strong>and</strong> 0.4 - 0.5 ppb during IFC’s 1 <strong>and</strong> 3. (4) Midday organic peroxide concentrations<br />
were lower, averaging 0.8 ppb during IFC-2, <strong>and</strong> 0.4 - 0.5 ppb during IFC’s 1 <strong>and</strong> 3. (5) The rough pine forest canopy serves as<br />
a significant sink for H2O2. (6) Midday H2O2 deposition velocities averaged 4 - 7 cm/s. (7) Organic peroxide deposition velocities<br />
(measured as total ROOH) were approximately 40% as large as those of H2O2.<br />
Author<br />
Data Acquisition; Atmospheric Composition; Canopies (Vegetation); Carbon Cycle; Gas Composition; Trace Contaminants<br />
<strong>2001</strong>0022512 NASA Goddard Space Flight Center, Greenbelt, MD USA<br />
BOREAS TGB-10 Oxidant Concentration Data over the SSA<br />
Hall, Forrest G., Editor, NASA Goddard Space Flight Center, USA; Conrad, Sara K., Editor, Raytheon Information Technology<br />
<strong>and</strong> <strong>Scientific</strong> Services, USA; Westberg, Hal, Washington State Univ., USA; Hall, Brad, Washington State Univ., USA; Jackson,<br />
Andrea V., Lancaster Univ., UK; November 2000; 24p; In English<br />
Contract(s)/Grant(s): RTOP 462-33-01<br />
Report No.(s): NASA/TM-2000-209891/VOL241; NAS 1.15:209891/VOL241; Rept-2000-03136-0/VOL241; No Copyright;<br />
Avail: CASI; A03, Hardcopy; A01, Microfiche<br />
The BOREAS TGB-10 team collected several trace gas data sets in its efforts to determine the role of biogenic hydrocarbon<br />
emissions with respect to boreal forest carbon cycles. This data set contains measured peroxide (H2O2 <strong>and</strong> total organic peroxides<br />
(ROOH)) <strong>and</strong> ozone concentrations as well as H2O2 <strong>and</strong> ROOH deposition velocities. These data were obtained at the SSA-OJP<br />
site from May to September 1994. The data are stored in tabular ASCII files. Some important results were: (1) Ozone concentrations<br />
were consistently low, 20-30 ppb, during the summer of 1994. (2) Peroxide concentrations showed a seasonal variation with<br />
highest concentrations occurring in July (IFC-2). (3) Midday H2O2 levels averaged around 1.4 ppb during IFC-2 <strong>and</strong> 0.4 - 0.5<br />
ppb during IFC’s 1 <strong>and</strong> 3. (4) Midday organic peroxide concentrations were lower, averaging 0.8 ppb during IFC-2, <strong>and</strong> 0.4 - 0.5<br />
ppb during IFC’s 1 <strong>and</strong> 3. (5) The rough pine forest canopy serves as a significant sink for H2O2. (6) Midday H2O2 deposition<br />
velocities averaged 4 - 7 cm/s. (7) Organic peroxide deposition velocities (measured as total ROOH) were approximately 40%<br />
as large as those of H2O2.<br />
Author<br />
Data Acquisition; Canopies (Vegetation); Carbon Cycle; Deposition; Gas Composition; Hydrocarbons; Trace Contaminants<br />
<strong>2001</strong>0022516 NASA Goddard Space Flight Center, Greenbelt, MD USA<br />
BOREAS TGB-8 Photosynthetic Rate Data over the SSA-OBS <strong>and</strong> the SSA-OJP<br />
Hall, Forrest G., Editor, NASA Goddard Space Flight Center, USA; Conrad, Sara K., Editor, NASA Goddard Space Flight Center,<br />
USA; Lerdau, Manuel, State Univ. of New York, USA; November 2000; 19p; In English<br />
Contract(s)/Grant(s): RTOP 462-33-01<br />
Report No.(s): NASA/TM-2000-209891/VOL238; NAS 1.15:209891/VOL238; Rept-2000-03136-0/VOL238; No Copyright;<br />
Avail: CASI; A03, Hardcopy; A01, Microfiche<br />
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