BOREAS TGB-08 Starch Concentration Data over the SSA-OBS and the SSA-OJP
Summary:
The TGB-08 team collected data to investigate the controls over non-methane
hydrocarbon (NMHC) fluxes from boreal forest tree species. This data set
includes measurements of starch concentrations in foliar samples at mature Jack
Pine and Black spruce sites. The two areas used in this research were in the
Southern Study Area (SSA) of the BOREAS region: the SSA Old Jack Pine (OJP) and
Old Black Spruce(OBS) tower-flux locations. These areas contained mature stands
of jack pine and black spruce and were the focal sites in the BOREAS program for
studies of biosphere/atmosphere exchange from these two habitat types. The OBS
site is situated in a black spruce/sphagnum bog with the largest trees 155 years
old and 10-15 m. tall. The OJP site is in a jack pine forest, 80 to 120 years
old, which lies on a sandy bench of glacial outwash with the largest tree
standing 15 m. tall. Temporally, the data cover the period of 24-May-94 to 19-
Sep-94. The data are stored in tabular ASCII files.
Table of Contents
* 1 Data Set Overview
* 2 Investigator(s)
* 3 Theory of Measurements
* 4 Equipment
* 5 Data Acquisition Methods
* 6 Observations
* 7 Data Description
* 8 Data Organization
* 9 Data Manipulations
* 10 Errors
* 11 Notes
* 12 Application of the Data Set
* 13 Future Modifications and Plans
* 14 Software
* 15 Data Access
* 16 Output Products and Availability
* 17 References
* 18 Glossary of Terms
* 19 List of Acronyms
* 20 Document Information
1. Data Set Overview
1.1 Data Set Identification
BOREAS TGB-08 Starch Concentration Data over the SSA-OBS and the SSA-OJP
1.2 Data Set Introduction
The mechanistic controls over non-methane hydrocarbon (NMHC) fluxes from boreal
forest trees were investigated. These studies could be used to modify existing
ecosystem models to include NMHC emissions and their response to seasonality and
resource variability (primarily water and nitrogen).
1.3 Objective/Purpose
To measure the starch concentrations in needles from the SSA-OBS and SSA-OJP.
1.4 Summary of Parameters
Starch concentrations.
1.5 Discussion
The research was ordered around three general questions: (1) To what extent are
leaf carbon balance and isoprene synthase activity (the enzyme responsible for
isoprene emission predictors of NMHC flux, (2) How do leaf carbon balance and
isoprene synthase activity depend on nitrogen/water availability and carbon
source/sink parameters, and (3) How do we modify the FORES-BGC ecosystem model
based on question 1 and 2, to predict canopy-level NMHC fluxes. Studies
included seasonal monitoring of NMHC emissions and its relationship to plant
phenology, photosynthesis, respiration, isoprene synthase activity, and leaf
starch concentrations.
1.6 Related Data Sets
BOREAS TGB-08 Photosynthetic Rate Data over the SSA-OBS and the SSA-OJP
BOREAS TGB-08 Monoterpene Concentration Data over the SSA-OBS and the SSA-OJP
2. Investigator(s)
2.1 Investigator(s) Name and Title
Manuel Lerdau
2.2 Title of Investigation
The Relationship Between Non-Methane Hydrocarbon Emission and Leaf Carbon
Balance in the Boreal Forest: An Approach for Mechanistic Ecosystem Modeling.
2.3 Contact Information
Contact 1
---------
Dr. Manuel Lerdau
Ecology and Evolution
SUNY
Stony Brook, NY
(516)632-6633
(516)632-7626 (fax)
mlerdau@life.bio.sunysb.edu
Contact 2
---------
Sara K. Conrad
Raytheon STX Corporation
NASA/GSFC
Greenbelt, MD
(301)286-2624
Sara.Golightly@gsfc.nasa.gov
3. Theory of Measurements
None given.
4. Equipment:
4.1 Sensor/Instrument Description
4.1.1 Collection Environment
Samples were collected under all environmental conditions.
4.1.2 Source/Platform
Trees.
4.1.3 Source/Platform Mission Objectives
To measure average starch concentrations in SSA-OBS and SSA-OJP.
4.1.4 Key Variables
Starch concentration.
4.1.5 Principles of Operation
None given.
4.1.6 Sensor/Instrument Measurement Geometry
None given.
4.1.7 Manufacturer of Sensor/Instrument
Campbell Scientific
AADCO Instruments
Silver Springs, FL
Supelco
Bellafonte, PA
Tekmar
Cincinnati, OH
SKC, Inc.
Eighty Four, PA
Finnigan
San Jose, CA
J&W Scientific
Folsom, CA
Hewlett Packard
LACHAT Inst.
Mequon, WI
4.2 Calibration
4.2.1 Specifications
None given
4.2.1.1 Tolerance
None Given.
4.2.2 Frequency of Calibration
None given.
4.2.3 Other Calibration Information
None Given.
5. Data Acquisition Methods
None given.
6. Observations
6.1 Data Notes
None Given.
6.2 Field Notes
None Given.
7. Data Description
7.1 Spatial Characteristics
7.1.1 Spatial Coverage
The North American Datum 1983 (NAD83) coordinates for the measurement sites are:
SSA-OBS 53.998 N, 105.128 W
SSA-OJP 53.928 N, 104.698 W
7.1.2 Spatial Coverage Map
None Given.
7.1.3 Spatial Resolution
These data are point source measurements taken near the given coordinates.
7.1.4 Projection
Not Applicable.
7.1.5 Grid Description
Not applicable.
7.2 Temporal Characteristics
7.2.1 Temporal Coverage
The data were colelcted from 24-May-94 to 19-Sep-94.
7.2.2 Temporal Coverage Map
None given.
7.2.3 Temporal Resolution
Monthly averages of the data were submitted.
7.3 Data Characteristics
Data characteristics are defined in the companion data definition file
(tgb8scds.def).
7.4 Sample Data Record
Sample data format shown in the companion data definition file (tgb8scds.def).
8. Data Organization
8.1 Data Granularity
All of the Starch Concentration Data over the SSA-OBS and the SSA-OJP are
contained in one dataset.
8.2 Data Format(s)
The data files contain numerical and character fields of varying length
separated by commas. The character fields are enclosed with a single apostrophe
marks. There are no spaces between the fields. Sample data records are shown in
the companion data definition file (tgb8scds.def).
9. Data Manipulations
9.1 Formulae
9.1.1 Derivation Techniques and Algorithms
None given.
9.2 Data Processing Sequence
9.2.1 Processing Steps
None given.
9.2.2 Processing Changes
None given.
9.3 Calculations
9.3.1 Special Corrections/Adjustments
None given.
9.3.2 Calculated Variables
None.
9.4 Graphs and Plots
None.
10. Errors
10.1 Sources of Error
None given.
10.2 Quality Assessment
10.2.1 Data Validation by Source
None given.
10.2.2 Confidence Level/Accuracy Judgement
None given.
10.2.3 Measurement Error for Parameters
None given.
10.2.4 Additional Quality Assessments
None given.
10.2.5 Data Verification by Data Center
The data were examined for general consistency and clarity.
11. Notes
11.1 Limitations of the Data
None given.
11.2 Known Problems with the Data
None given.
11.3 Usage Guidance
None.
11.4 Other Relevant Information
None.
12. Application of the Data Set
None given.
13. Future Modifications and Plans
None given.
14. Software
14.1 Software Description
None given.
14.2 Software Access
None given.
15. Data Access
15.1 Contact Information
MS. Beth McCowan
BOREAS Data Manager
NASA GSFC
Greenbelt, MD
(301) 286-4005(
301) 286-0239 (fax)
Elizabeth.Nelson@gsfc.nasa.gov
15.2 Data Center Identification
See 15.1.
15.3 Procedures for Obtaining Data
Users may place requests by telephone, electronic mail, or FAX.
15.4 Data Center Status/Plans
The BOREAS TGB-08 starch concentration data are available from the EOSDIS ORNL
DAAC (Earth Observing System Data and Information System) (Oak Ridge National
Laboratory) (Distributed Active Archive Center). The BOREAS contact at ORNL is:
ORNL DAAC User Services
Oak Ridge National Laboratory
(865) 241-3952
ornldaac@ornl.gov
ornl@eos.nasa.gov
16. Output Products and Availability
16.1 Tape Products
None.
16.2 Film Products
None.
16.3 Other Products
Comma delimited ACSII Data Files
17. References
17.1 Platform/Sensor/Instrument/Data Processing Documentation
None given.
17.2 Journal Articles and Study Reports
Sellers, P., F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan.
Version 1994-3.0, NASA BOREAS Report (EXPLAN 94).
Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den Hartog, J.
Cihlar, M.G. Ryan, B. Goodison, P. Crill, K.J. Ranson, D. Lettenmaier, and D.E.
Wickland. 1995. The boreal ecosystem-atmosphere study (BOREAS): an overview and
early results from the 1994 field year. Bulletin of the American Meteorological
Society. 76(9):1549-1577.
Sellers, P., F. Hall, K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere Study:
1994 Operations. NASA BOREAS Report (OPS DOC 94).
Sellers, P., F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment Plan.
Version 1996-2.0, NASA BOREAS Report (EXPLAN 96).
Sellers, P., F. Hall, K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere Study:
1996 Operations. NASA BOREAS Report (OPS DOC 96).
Sellers, P. J., F. G. Hall, R. D. Kelly, A. Black, D. Baldocchi, J. Berry,
M. Ryan, K. J. Ranson, P. M. Crill, D. P. Lettenmaier, H. Margolis, J.
Cihlar, J. Newcomer, D. Fitzjarrald, P. G. Jarvis, S. T. Gower, D.
Halliwell, D. Williams, B. Goodison, D. E. Wickland, and F. E. Guertin.
1997. BOREAS in 1997: Experiment Overview, Scientific Results and Future
Directions. Journal of Geophysical Research 102 (D24): 28,731-28,770.
17.3 Archive/DBMS Usage Documentation
None.
18. Glossary of Terms
None given.
19. List of Acronyms
BOREAS - BOReal Ecosystem-Atmosphere Study
BORIS - BOREAS Information System
DAAC - Distributed Active Archive Center
EOS - Earth Observing System
EOSDIS - EOS Data and Information System
GSFC - Goddard Space Flight Center
NASA - National Aeronautics and Space Administration
ORNL - Oak Ridge National Laboratory
URL - Uniform Resource Locator
20. Document Information
20.1 Document Revision Date
Written: 27-Jul-1997
Last updated: 14-Sep-1998
20.2 Document Review Date(s)
BORIS Review: 28-Aug-1998
Science Review:
20.3 Document ID
20.4 Citation
Manuel Lerdau: Department of Ecology and Evolution, State University of
New York, Stony Brook, NY 11794-5245
Marcy Litvak and Russell Monson: Department of Environmental, population and
Organismic Biology, University of Colorado, Boulder, CO 80309-033
20.5 Document Curator
20.6 Document URL
Keywords:
Monoterpene, NMHC, Photosynthesis, Starch
TGB08_Starch_Conc.doc
09/14/98