Campbell Scientific CSAT3 Open Path Eddy Covariance (OPEC)
Campbell Scientific CSAT3 Manual
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- Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 1
Open-Path Eddy-Covariance System Operator's Manual IRGASON, KH20, and FW05 Revision: 4/13 Copyright © 2004-2013 Campbell Scientific, Inc. - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 2
- Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 3
BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. ("Campbell") to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless otherwise specified in the corresponding Campbell pricelist or product manual - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 4
problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific's shipping address is: CAMPBELL SCIENTIFIC customer at the customer's expense. Campbell Scientific reserves the right to refuse service on products that were exposed - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 5
Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. System Description 1 1.1 OPEC (CSAT3 Only 1 1.2 Basic OPEC 1 1.3 Extended OPEC 2 1.4 Additional Fast Response Sensors 2 2. - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 6
References B-1 C. OPEC200 Open Path Eddy Covariance System Quickstart Guide C-1 Figures 2-1. 3-1. 3-2. 4-1. 4-2. 4-3. 4-4. settings to read a Campbell Scientific TOB1 data file..... 26 instruction 30 Computing CO2 flux with 2 Chn Statistics and graphing Uz statistic with Plot Value instruction - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 7
Table of Contents Tables 2-1. Nominal Sensor Power Requirements 5 2-2. Nominal Datalogger Power Requirements with the Display Off and No RS-232 Communications 5 2-3. Nominal Datalogger Power Requirements with the Display and Backlight On, and No RS-232 Communications 5 iii - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 8
Table of Contents iv - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 9
will serve as a guide to properly install and operate a Campbell Scientific Open-Path Eddy- products are manufactured by Campbell Scientific and other vendors. Manuals for each of these It is much more convent and less expensive to trouble shoot the station near the office. The literature contains - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 10
CNR2, NR01 or CNR4 net radiometer; two or four HFP01 or HFP01-SC soil heat flux plates, one or two TCAV averaging sensors no longer carried by Campbell Scientific are also supported by the extended OPEC datalogger . See the tripod manuals for detailed installation instructions. FIGURE 2-1 depicts - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 11
OPEC Open-Path Eddy-Covariance System TIP Keep a log book for each station. Record the date and personnel name for all site visits, as well as all maintenance and work that is performed during the site visit. Document the condition of the sensors and site with a digital camera. FIGURE 2-1. - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 12
and a leveling mounting kit (CM250). Section 3 of the IRGASON manual contains detailed information on mounting the sensors and EC100 electronics. 2.2.1 see Appendix A for details. 2.3 Wiring 2.4 Power A Campbell Scientific Open-Path Eddy-Covariance system can take on several configurations and - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 13
system. With a Campbell Scientific PS84 solar power system, connect the OPEC sensor power cables to the positive and negative terminals of the power supply. For a third party power system, see the specific power supply system manual for installation and connection instructions. Power connections are - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 14
supported by the program, add the appropriate measurement and processing instructions to the program or contact Campbell Scientific for assistance. Campbell Scientific The delay as a function of bandwidth is given in the IRGASON manual. The sensor delays are removed before the data is used to compute - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 15
the key. Enter the azimuth of the negative x-axis and press the key. Press the several times so that the Campbell Scientific logo if visible. To enter the "sonic_azimuth" using LoggerNet, connect to the datalogger with LoggerNet and display the Public data table. Locate the - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 16
Campbell Scientific dataloggers it is reserved for use with the Group Trigger instruction. The IRGASON is shipped from the factory is /peripheral support software shipped with LoggerNet. ECMon is PC support software IRGASON bandwidth and delay see the IRGASON manual. NOTE The settings are sent to - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 17
cable. TIP To avoid potential problems (mixed data and connectivity issues Campbell Scientific have passed our temperature and electrostatic discharge (ESD) testing. The following instructions assume a basic familiarity in the operation of a CRBasic datalogger keyboard; see the datalogger manual - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 18
manual). With the keyboard display, follow this menu path System Menu | Status. Useful information in the "Status" table includes, but is not limited to: OSVersion: Version and revision of the CRBasic datalogger operating system. As of the printing of this document, Campbell Scientific recommends - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 19
exceeded (defined in the third parameter of the Scan () instruction), the Processing and Measurement tasks are resynchronized. The resynchronization saved on the PC/CF card as a binary file in a Campbell Scientific format called Table Oriented Binary Format 3 (TOB3). TOB3 incorporates features - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 20
, e.g., in the same format as the Campbell Scientific mixed array dataloggers. NOTE Campbell Scientific recommends the use of TOB1 file format. datalogger manual. For backwards compatibility with mixed array dataloggers, comma separated values, without header information, is also supported with - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 21
connection", LoggerNet and the Baler can be used to collect and manage the data. To create a new station file see Section 4.2 of the LoggerNet manual. Configure the station's "Data Files" tab as shown in FIGURE 4-1 and FIGURE 4-2. Note that the "File Output Option" is "No Output File". LoggerNet - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 22
OPEC Open-Path Eddy-Covariance System FIGURE 4-2. LoggerNet station setup for the "ts_data" table In the "Schedule" tab, configure the station's data collection as shown in FIGURE 4-3. Modify the Primary Retry Interval, Number of Primary Retries, and the Secondary Retry interval as needed for the - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 23
"bale" it into a user specified file size (see FIGURE 4-5 and FIGURE 4-6). Campbell Scientific recommends using a one hour bale size for time series data that will be post the other for the flux data (see Section 6.5 in the Baler manual). TIP While the system is set up in the lab or outside near - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 24
OPEC Open-Path Eddy-Covariance System FIGURE 4-5. Baler station setup for the "flux" table FIGURE 4-6. Baler station setup for the "ts_data" table 16 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 25
from the PC/CF card to the PC, remove the card from the datalogger following the proper card removal procedure (see the appropriate datalogger manual for details). Insert a fresh card into the datalogger or copy the data from the card to a working directory on the computer. Transferring data using - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 26
a TOB1, TOA5, or Array Compatible CSV (see FIGURE 4-7). This utility is installed on the PC under the Start menu in the Programs | Campbell Scientific | LoggerNet | Utilities group. To take advantage of all the functionality described in this section, use CardConvert version 1.2 or later. Copy the - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 27
OPEC Open-Path Eddy-Covariance System Start the CardConvert utility. When CardConvert is started, a summary of its current settings is displayed in the lower right hand screen. There are four screens/parameters to setup and configure in CardConvert. Once configured, CardConvert will save these - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 28
OPEC Open-Path Eddy-Covariance System TIP NOTE • Set the file size (Bale size) in the "Time Settings" screen. For the time series files, use a one hour file size and for the online flux data, use a one day file size. Practice converting the data from the card and processing it with your off-line - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 29
OPEC Open-Path Eddy-Covariance System FIGURE 4-10. List of files created by CardConvert 4.1.4.1 Collecting Data with One Card If a single card is used to collect the data and the data on the card is not deleted after copying it to the PC, the datalogger will append the data collected since the card - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 30
OPEC Open-Path Eddy-Covariance System FIGURE 4-11. List of files created by CardConvert with duplicates FIGURE 4-12. List of files where the duplicate files are renamed to *.bak 4.1.4.2 Collecting Data with Two Cards Data can be collected using two cards. The card in the datalogger is removed and - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 31
OPEC Open-Path Eddy-Covariance System NOTE Using two or more cards is a fast and efficient method of collecting data. Only new data is collected; however, two partial files within a "baling" period are created. Variable file lengths are not an issue with EdiRe. Again, note that the first and last - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 32
rotation to the data. 4.2.2 Off-line Processing with EdiRe EdiRe is a powerful and flexible software package for processing EddyCovariance data collected by a Campbell Scientific system. It is available at no charge from the University of Edinburgh's ftp site (http://www.geos.ed.ac.uk/ abs/research - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 33
how to use EdiRe is to experiment with it. EdiRe is not a Campbell Scientific product. Campbell Scientific provides limited support of EdiRe, specifically in reading in TOB1 data files. If further support is required, contact the support personnel listed at http://www.geos.ed.ac.uk/ abs/research - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 34
OPEC Open-Path Eddy-Covariance System FIGURE 4-15. Interpreter settings to read a Campbell Scientific TOB1 data file FIGURE 4-16. Folder that contains the raw TOB1 time series data files 26 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 35
OPEC Open-Path Eddy-Covariance System FIGURE 4-17. Completed Interpreter screen FIGURE 4-18. Estimated sample frequency and correct sample frequency 4.2.2.2 Example EdiRe Raw File Format and Processing Lists To view the Lists in EdiRe, select the Processing | Options menu. The "Raw File Format" list - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 36
, can be specified in the "Output Files" tab or as part of the processing list with the "Location Output Files" instruction (FIGURE 4-20). TIP Campbell Scientific recommends incorporating the output file destination as part of the processing list rather than changing the output file name in the - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 37
OPEC Open-Path Eddy-Covariance System FIGURE 4-20. Output file location as part of the processing list FIGURE 4-21. Output file location as part of the processing list 29 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 38
OPEC Open-Path Eddy-Covariance System FIGURE 4-22. Processing Uz and CO2 with 1 Chn Statistics instruction FIGURE 4-23. Computing CO2 flux with 2 Chn Statistics and graphing Uz statistic with Plot Value instruction 30 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 39
and Measurement (Kaimal and Finnigan, 1994) A Brief Practical Guide to Eddy Covariance Flux Measurements: Principles and Workflow Examples for Scientific and Industrial Applications (Burba and Anderson, 2010) Eddy Covariance, A Practical Guide to Measurement and Data Analysis (Abuinet et al., 2012 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 40
OPEC Open-Path Eddy-Covariance System The surface layer (FIGURE 5-1) is comprised of approximately the lower 10% of the atmospheric boundary layer (ABL). The fluxes of water vapor and heat within this layer are nearly constant with height when the following criteria are met: the surface has - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 41
Appendix A. CSAT3 Orientation A.1 Determining True North and Sensor Orientation The orientation of the CSAT3 negative x-axis is found by reading a magnetic compass and applying the site-specific correction for magnetic declination; where the magnetic declination is the number of degrees between True - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 42
Appendix A. CSAT3 Orientation Declination angles are always subtracted from the compass reading to find True North. A declination angle East of True North is reported as positive a value and is subtracted from 360 (0) degrees to find True North as shown FIGURE A-2. A declination angle West of True - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 43
Appendix A. CSAT3 Orientation A.2 Online Magnetic Declination Calculator The magnetic declination calculator web calculator published by NOAA's Geophysical Data Center is available at the following url http://www.ngdc.noaa.gov/seg/geomag/jsp/struts/calcDeclination. After the web page loads, enter - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 44
Appendix A. CSAT3 Orientation A-4 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 45
. Burba, G. G., and Anderson, D. J., 2010: A Brief Practical Guide to Eddy Covariance Flux Measurements: Principles and Workflow Examples for Scientific and Industrial Applications, LI-COR Biosciences, Lincoln, 211 pp. Campbell, G. S., and Tanner, B. D.: 1985, "A Krypton Hygrometer for Measurement - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 46
Appendix B. References Schotanus, P., F. T. M. Nieuwstadt, and H. A. R. de Bruin, 1983: Temperature measurement with a sonic anemometer and its application to heat and moisture fluxes, Bound.-Layer Meteorol., 26, 81-93. Schuepp, P. H., Leclerc, M. Y., MacPherson, J. I., and Desjardins, R. L.: 1990, - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 47
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 1. Setup tripod and mount enclosures. EC100 Electronics Datalogger Enclosure C-1 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 48
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 2. Ground tripod and enclosures. Grounding Rod Ground Lug C-2 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 49
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 3. Setup tripod or mast with CM20X Crossarm. Crossarm-to-Pole Bracket CM20X Crossarm C-3 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 50
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 4. Mount the IRGASON into the prevailing wind. IRGASON Mounting Bracket IRGASON Leveling Bubble IRGASON Boom Adapter CM20X Crossarm C-4 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 51
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 5. Mount the radiation shield and IRGASON Temperature Probe. Radiation Shield CM20X Crossarm IRGASON Temperature Probe C-5 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 52
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 6. Connect gas analyzer, sonic anemometer, and temperature probe cables to EC100 Electronics. Gas Analyzer Cable Temperature Probe Cable Sonic Anemometer Cable C-6 - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 53
Appendix C. OPEC200 Open Path Eddy Covariance System Quickstart Guide 7. Connect system wiring and insert compact flash (CF) card. Insert CF Card Datalogger Enclosure EC100 Power and SDM Cables Power Cable (can connect here or - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 54
Covariance System Quickstart Guide 8. Turn on the power supply and use the datalogger keyboard display to set settings. (Follow the steps from left to right, top to bottom). Press to activate the display. Press to display the System Control Menu. Campbell Scientific CR3000 Datalogger - Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 55
- Campbell Scientific CSAT3 | Open Path Eddy Covariance (OPEC) - Page 56
Centro Caribe S.A. (CSCC) 300 N Cementerio, Edificio Breller Santo Domingo, Heredia 40305 COSTA RICA www.campbellsci.cc • [email protected] Campbell Scientific Ltd. (CSL) Campbell Park 80 Hathern Road Shepshed, Loughborough LE12 9GX UNITED KINGDOM www.campbellsci.co.uk • [email protected]
Open-Path Eddy-Covariance
System Operator’s Manual
IRGASON, KH20, and FW05
Revision: 4/13
Copyright © 2004-2013
Campbell Scientific, Inc.