Campbell Scientific Open Path Eddy Covariance (OPEC) - Manual (Page 6)

Table of Contents
Appendices
A. CSAT3 Orientation ..................................................A-1
A.1 Determining True North and Sensor Orientation ............................ A-1
A.2 Online Magnetic Declination Calculator ......................................... A-3
B. References...............................................................B-1
C. OPEC200 Open Path Eddy Covariance System
Quickstart Guide...................................................C-1
Figures
2-1. Open-Path Eddy-Covariance (IRGASON) System ............................. 3
3-1. IRGASON right hand coordinate system, horizontal wind vector
angle is 0 degrees............................................................................. 7
3-2. Compass coordinate system, compass wind direction is 140
degrees ............................................................................................. 8
4-1. LoggerNet station setup for the “flux” table...................................... 13
4-2. LoggerNet station setup for the “ts_data” table................................. 14
4-3. LoggerNet station data collection schedule....................................... 14
4-4. LoggerNet station status monitor ...................................................... 15
4-5. Baler station setup for the “flux” table .............................................. 16
4-6. Baler station setup for the “ts_data” table ......................................... 16
4-7. File format flow................................................................................. 18
4-8. Destination File Option screen .......................................................... 19
4-9. Fully configured CardConvert start up screen................................... 20
4-10. List of files created by CardConvert.................................................. 21
4-11. List of files created by CardConvert with duplicates ........................ 22
4-12. List of files where the duplicate files are renamed to *.bak .............. 22
4-13. List of files collected the first time using two cards .......................... 23
4-14. List of files collected the second time using two cards ..................... 23
4-15. Interpreter settings to read a Campbell Scientific TOB1 data file..... 26
4-16. Folder that contains the raw TOB1 time series data files .................. 26
4-17. Completed Interpreter screen............................................................. 27
4-18. Estimated sample frequency and correct sample frequency .............. 27
4-19. Default EdiRe processing list created by the Interpreter ................... 28
4-20. Output file location as part of the processing list .............................. 29
4-21. Output file location as part of the processing list .............................. 29
4-22. Processing U
z
and CO
2
with 1 Chn Statistics instruction .................. 30
4-23. Computing CO
2
flux with 2 Chn Statistics and graphing U
z
statistic with Plot Value instruction ............................................... 30
5-1. Ideal vertical profiles of virtual potential temperature and specific
humidity depicting all the layers of the atmospheric boundary
layer ............................................................................................... 31
A-1. Magnetic declination for the conterminous United States (2004) ... A-1
A-2. A declination angle East of True North (positive) is subtracted
from 360 (0) degrees to find True North...................................... A-2
A-3. A declination angle West of True North (negative) is subtracted
from 0 (360) degrees to find True North...................................... A-2
A-4. Online magnetic declination calculator with inputs and output
for Longmont, CO........................................................................ A-3
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