Intercomparison Experiment
Motivation
Parallel to the workshop the organizers and participants will conduct a Scintillometer Inter-Comparison Experiment. The main objective of this experiment is to compare - along the same transect - a large number of scintillometers brought by the participants in the presence of experts from the manufacturers in order to better quantify, understand, and resolve the issues of inter-instrument error observed by Kleissl et al. (2008, 2009). The results from the intercomparison will improve the accuracy of your instrument and advance the technology in general.
Setup and Timeline
The goal is to have as many scintillometer as possible measuring over the same area. The slide shows the proposed intercomparison setup. To simplify the setup and minimize need for power and datalogger infrastructure, we propose to create a half circle with scintillometers. Note that the Scintec BLSs need 500 m lateral spacing due to the larger emission angle. This setup will be finalized once we know how many instruments we will have.
The timeline will be as follows:
- Oct 9: Kleissl arrives 2200h in ABQ
- Oct 10: 0800h meet at parking lot of MSEC building (Building 32 and directions ), New Mexico Tech campus in Socorro. Cellphone contact is 443 527 2740.
- Oct 10 and 11: setup. Call 443 527 2740 when you arrive to meet up. The field site on the east side of the Sevilleta National Wildlife Refuge. Coordinates: 348262 m Easting or -106.6500o E, 3806021 m Northing or 34.3850o N, 1590 m MSL, UTM12.
Driving Directions: Take I25 to exit San Bernardo / Mountainair & take Highway 50 east towards Mountainair).
After 9.8 miles turn right onto dirt road. Drive through gate and road will take you south just east of Black Butte, a large isolated hill
After 0.2 miles you will reach the main locked Sevilleta gate --> NEED COMBINATION
After the gate turn left onto a dirt road heading initially west, later southwest. Continue for 2.5 miles until you reach the coordinates given above. The setup will be directly next to the road and should be easily visible.
- Oct 12: measurements
- Oct 13: download and participant practice. Analyze data and develop modifications to setup.
- Oct 14: participant practice, modifications to setup. Collect and analyze data in the eve.
- Oct 15: final modifications, Kleissl departs 0715h from ABQ
- Oct 16-23: continuation of the experiment. Maintenance conducted by NMT personnel or other volunteers.
- Oct 24-25: takedown with Kleissl
Signup
Please send the following information to Jan Kleissl at jkleissl ucsd.edu with CC to sdelap nmt.edu:
- Name, Affiliation, and educational background
- Degree of familiarity with scintillometers
- Expected arrival and departure date. If you arrive before the workshop or stay on after the workshop indicate willingness to help out with the setup / takedown
- Number of scintillometers that you will provide for the intercomparison study. Include
- Type and serial numbers. Include information about recalibrations and hardware / software updates since purchase.
- Mode of transportation: Will you be shipping the scintillometer or driving?. Covering transportation to and from New Mexico Tech is the responsibility of the participant. We can return ship the scintillometer to you if you can provide a fedex or ups account number.
- Accessories: especially solar panels and CRX000 or CR10X dataloggers would be appreciated. Please mark all your equipment clearly with your name and contact info.
We look forward to seeing you at the workshop!
Jan Kleissl and Jan Hendrickx
