Studies of Temperature Measurements on the GV
This page contains information related to temperature measurements on the NSF/NCAR GV. The content includes information on needed reprocessing (summer 2014) and on calibration procedures.
- May 25, 2022 Technical Note: NCAR GV Aircraft TAT Sensor Update: Signal Path Changes and Recovery Factor Modeling
- September 23, 2015 memo: Study of the Recovery Factor
- Memo re reprocessing: This long memo contains relatively complete information including items from some of the documents below. It includes tables listing calibration coefficients to use for processing temperature for GV projects prior to 2012.
- March 5, 2013 memo: First discussion of the problem with bath calibrations.
- Presentation slides from discussion of this problem at the RAF
- Note re T dependence of A/D cards. This note documents the study of temperature dependence of the A-D cards and the corrections that are now being applied.
- Guide to using CVDfit.py. This document explains how to fit the Callendar - Van Dusen equation to measurements from a bath cal.
- Guide to using the TCalFit.py program that determined the coefficients recommended in the memo re reprocessing.
- LAMS study re T. This paper in Atmospheric Measurement Techniques Discussions contains a section on calibration of temperature using the LAMS. See Section 5 starting on p. 2604.
- CONTRAST study re T (31 March 2014). This discusses the temperature problems in CONTRAST and proposes a solution, based on the LAMS calibration technique.
- Algorithm document, section 4.4. The document on processing algorithms contains this discussion of how temperature measurements are processed.
- Summary of calibrations– spreadsheet
- Friesen spreadsheet with calibrations from the technicians' notes
- Info on caledit program and database
- /scr/raf/cjw/projects/XXX/GV_N667F/nidas/default.xml --Link to xml database
- /scr/raf/cjw/projects/Configuration/raf/cal_files -- other cal database