BOREAS TE-11 Surface Meteorological Data

The BOReal Ecosystem-Atmosphere Study (BOREAS) Terrestrial Ecology (TE)-11 team 
collected several data sets in support of its efforts to characterize and 
interpret information on the sapflow, gas exchange, and lichen photosynthesis of 
boreal vegetation and meteorological data of the area studied. This data set 
contains the meteorological data taken in the BOREAS Southern Study Area (SSA) 
during 1994 and used by TE-11 for their sapflow and gas exchange data analysis. 

Meteorological data was taken every half hour from the Airborne Flux and 
Meteorology (AFM) 7 Saskatchewan Research Council (SRC) station at the SSA-OJP 
site on Julian days 120 to 258 in 1994.  The data are stored in two ASCII files 
where one contains daily  values and the other contains half-hourly values.  The 
values stored in the daily file are year, Julian day of year, Photosynthetically 
Active Radiation (PAR) (MJ/m2/day), total solar radiation  (MJ/m2/day), net 
radiation  (MJ/m2/day), and potential evaporation (from the Penman's formula) 
(mm/day).  The values stored in the 30-minute file are year, Julian day of year, 
local time in the SSA, Photosynthetically Active Radiation (PAR) (W/m2), total 
solar radiation (W/m2), net radiation (W/m2), air temperature above forest 
(degrees Celsius), relative humidity of air (percent), wind velocity above 
forest canopy (m/sec), potential evaporation (from the Penman's formula) 
(mm/hour), fraction of potential evaporation due to the connective term of the 
Penman's equation (unitless), cumulative precipitation (mm), atmospheric 
pressure (KiloPascals), surface temperature using an infrared thermometer 
(degrees Celsius), and soil temperature at 10 cm below the surface (degrees 
Celsius).

1. Contact Information

Contact 1:
Bernard Saugier, Ecologie vegetale, bat. 362
Universite Paris-Sud
Orsay cedex
France
33.1.69.41.71.36
33.1.69.41.72.38 (fax)
saugier@psisun.u-psud.fr 

Contact 2:
Andrea Papagno
Raytheon ITSS
NASA GSFC
Greenbelt, MD 
(301) 286-3134
(301) 286-0239 (fax)
andrea.papagno@gsfc.nasa.gov

2. Data Access  

2.1 Contact Information

Ms. Beth Nelson
BOREAS Data Manager
NASA GSFC
Greenbelt, MD 
(301) 286-4005
(301) 286-0239 (fax)
Elizabeth.Nelson@gsfc.nasa.gov

2.2 Data Center Identification
        
See Section 2.1.

2.3 Procedures for Obtaining Data
        
Users may place requests by telephone, electronic mail, or fax.

2.4 Data Center Status/Plans

The Terrestrial Ecology (TE)-11 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


3. Data Characteristics

Data characteristics are defined in the companion data definition file 
(te11smet.def).

4. Sample Data Record

Sample data format shown in the companion data definition file (te11smet.def).

5. Data Organization

5.1 Data Granularity

All of the surface meteorological data are contained in one dataset.

5.2 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 (te11smet.def).

6. Journal Articles and Study Reports Referenced:

Sellers, P. and  F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment 
Plan. Version 1994-3.0, NASA BOREAS Report (EXPLAN 94). 

Sellers, P. and F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment 
Plan. Version 1996-2.0, NASA BOREAS Report (EXPLAN 96). 

Sellers, P., F. Hall, and K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere 
Study: 1994 Operations. NASA BOREAS Report (OPSDOC 94). 

Sellers, P., F. Hall, and K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere 
Study: 1996 Operations. NASA BOREAS Report (OPSDOC 96). 

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 
earlyresults from the 1994 field year. Bulletin of the American Meteorological 
Society. 76(9):1549-1577. 

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, BOREAS in 1997: Experiment overview, scientific 
results, and future directions. Journal of Geophysical Research, 102 (D24), 
28731-28769. 
TE11_Surf_Met.doc
03/03/99