CEOP/EOP-1 GAPP Bondville Hourly Soil Heat Flux, Moisture, and Temperature Data Set
1.0 Contact Information
1.1 UCAR/JOSS Contact
Steven F Williams
Data Specialist
UCAR/JOSS
P.O. BOX 3000
Boulder, CO, USA, 80307-3000
Telephone: 303-497-8987
Facsimile: 303-497-8158
E-Mail Address: sfw@ucar.edu
1.2 GAPP Contact
Tilden Meyers
NOAA/ATDD
P.O. Box 2456
Oak Ridge, TN 37831-2456
USA
Telephone: 423-576-1233
E-mail: meyers@atdd.noaa.gov
2.0 General Description
This data set contains the Coordinated Enhanced Observing Period (CEOP)
Enhanced Observing Period 1 (EOP-1) Global Energy and Water Cycle
Experiment (GEWEX) Americas Prediction Project (GAPP) Bondville Hourly Soil
Heat Flux, Moisture, and Temperature Data Set. This data set contains
hourly soil heat flux (0cm depth), soil temperature (2, 4, 8, 16, 32, and
64cm depths), and soil moisture (10, 30, and 60cm depths) data from a
single station for the CEOP EOP-1 time period (01 July 2001 to 30
September 2001). The University Corporation for Atmospheric Research/Joint
Office for Science Support (UCAR/JOSS) did not perform quality control
processing on this data set.
3.0 Detailed Data Description
This data set is also available on-line in 30-minute native format at
http://www.joss.ucar.edu/ghp/ceopdm/ under the link "CEOP EOP-1 Reference
Site Data Sets"
3.1 GAPP Bondville Algorithms
The algorithms used to produce the GAPP Bondville native format data are
not currently available.
This CEOP/EOP-1 GAPP Bondville Hourly Soil Heat Flux, Moisture, and
Temperature Data Set hourly data set was formed by extracting the top of
the hour observations from the 30 minute native format data. The data were
provided in local standard time and were converted to UTC time by adding 6
hours to the local standard time. The soil heat flux provided in the
native format was assumed to be at a depth of 0 cm.
More information regarding this site can be found under the CEOP Reference
Site Station Characteristics link on the UCAR/JOSS CEOP Data Management page
at http://www.joss.ucar.edu/ghp/ceopdm/.
3.2 Station Information
The following is a complete description of the station information provided
with this CEOP GAPP Bondville data set. Table 1 details the station list
parameters. GAPP Bondville values for each parameter are listed in brackets
at the end of each line. The beginning and ending dates for the period of
coverage are in Universal Time Coordinated (UTC). The Identification Type
field is network dependent and indicates the source of the Identification
field. The Occurrence field is an integer value used to indicate
co-located stations. Note that when a particular parameter is unknown for
a station, either a blank, a question mark, or all 9's will appear in that
parameter's position. For a complete list of Country, State, and County
values, refer to the document in the references (Section 5.0). Possible
platform types and frequency values are listed in Tables 2 and 3,
respectively. Note that only those platform types present in the CEOP
EOP-1 data have been listed.
Table 1
Parameter Description
--------- -----------
Identification ID in data. [Bondville]
Identification Type Internal ID number type. [32]
Latitude Station Latitude. [40.00610]
Longitude Station Longitude. [-88.29000]
Occurrence Station occurrence. [0]
Lat/Lon Accuracy Number of digits accuracy
in lat/lon values. [2]
Name Expanded station name. [GAPP:Bondville]
Commissioned Flag `(C)' indicates commissioned station,
`(N)' indicates station which is NOT
commissioned. [(N)]
Begin Period of Coverage Beginning date of period of coverage
(YYYYMMDD). [20010701]
End Period of Coverage End date of period of coverage
(YYYYMMDD). [20010930]
Country Country in which station is located. [US]
State State code. [17]
County County code. [???]
UTC offset Hour Offset from UTC time. [0.00]
DST switch 'y' indicates station does switch to
Daylight Savings Time (DST). 'n' indicates
station does not switch to DST. [n]
Platform type Collection Platform. See Table 2. [264]
Reporting Frequency Frequency of data collection. [30min]
Elevation Station elevation. [213]
Fixed/Mobile flag Flag indicating if station has fixed
location. 'f' indicates a fixed station.
'm' indicates a mobile station. [f]
Table 2
Platform Type Description
------------- -----------
264 CEOP Reference Site Platform
Table 3
Reporting Frequency
-------------------
30 minute
3.3 Detailed Format Description
The CEOP EOP-1 GAPP Bondville Hourly Soils Data Set contains 11 metadata
parameters followed by parameter values for 26 soils depths (i.e.,
0,2,3,4,5,6,7,8,10,15,16,20,25,30,32,35,40,45,50, 60,64,85,100,125,150,175
cm). The metadata parameters describe the station location and time at
which the data were collected and the record type. The record type
describes the type of data found on that record and is described in the
Table 4 below. The time of observation is reported both in Universal Time
Coordinated (UTC) Nominal and UTC actual time. Days begin at UTC 0100 and
end at UTC 0000 the following day. Note that missing parameter values are
indicated by "-999.99". The table below details the parameters in each
record.
Parameters Units
---------- -----
Date of Observation UTC Nominal
Time of Observation UTC Nominal
Date of Observation UTC Actual
Time of Observation UTC Actual
CSE Identifier Abbreviation of CSE name
Reference Site Identifier Abbreviation of Site name
Station Identifier Reference Site Dependent
Latitude Decimal degrees, South is negative
Longitude Decimal degrees, West is negative
Station Elevation Meters
Record Type Type of data in current record.
See Table 4.
Parameter Values Parameter Values for 26 depths.
Table 4
Record Type Description
------------- -----------
SoilHtFlux Soil heat flux in W/m2
SoilMoist Volumetric soil water content in percent
SoilTemp Soil temperature in Celsius
3.4 Data Remarks
This data set contains only the hourly observations for the CEOP EOP-1
time period. This data set is also available on-line in native format at
http://www.joss.ucar.edu/ghp/ceopdm/ under the link "CEOP EOP-1 Reference
Site Data Sets".
4.0 Quality Control Processing
UCAR/JOSS performed limited gross limit and visual checks on this data set.
No data values have been changed.
5.0 References
Department of Commerce - National Institute of Standards and Technology
(NIST), 1985: Federal Information Processing Standards Publication
10-3 Countries, Dependencies, & Areas of Special Sovereignty.
Department of Commerce - NIST, Washington, DC.