Texas Air Quality Study 2000
Mixing Depth Data
Data Description
Mixing depth data cover the time period from 8/15/2000 to 09/19/2000, whenever data were available from each individual instrument. The data files are in ASCII fromat. Each file contains a short header that includes instrument type and location followed by data arranged in 6 columns: date, day of year (DOY), time in decimal hours UTC, latitude (positive=north of equator), longitude (negative = west of Greenwich), and mixed layer depth in m. The bad data value is -999.00. For more information on how mixing depth was derived from the various types of measurements and a description of mixing depth temporal and spatial evolution during the 8/23/2000 to 09/01/2000 period please follow the link to the report titled "Spatial and Temporal Variations in Mixing Height in Houston".
Mixing depth data calculated from 3 instruments:
- ETL Airborne Lidar, files for each of 9 flights:
- radiosonde, files including data from 8/16 through 9/19, for each location
- wind profiler, files including data from 8/15 through 9/15, for each location
Data Policy
The retrieval and interpretation of mixing depth data from the TexAQS 2000 study was lead by scientists from the NOAA Environmental Technology Laboratory, while scientists from several other agencies were involved in collecting and analyzing the data. The individual contributions are as follows:
Airborne lidar data:
- Data collection, quality control, and mixing depth retrieval - NOAA Environmental Technology Laboratory
Radiosonde data:
- Data collection and quality control - Pacific Northwest National Laboratory
(Carl Berkowitz and Chris Doran, Atmospheric Sciences and Global Change Division)- Mixing depth retrieval - NOAA Environmental Technology Laboratory
Wind profiler data:
- Ellington: Data collection and quality control - Texas Commission on Environmental Quality
- Houston SW: Data collection and quality control - NOAA Aeronomy Laboratory
- Liberty profiler: Data collection and quality control - University of Alabama in Huntsville
- LaMarque: Data collection and quality control - Argonne National Laboratory
- Wharton: Data collection and quality control - Pacific Northwest National Laboratory
- Mixing depth retrival for all profilers - NOAA Aeronomy Laboratory
We request that a proper acknowledgment of the respective agency accompany the use of this data in any publications and presentations. If the use of the data in a publication constitutes a major or reasonably significant aspect of an article, co-authorship by an ESRL/CSD scientist and/or scientists from any of the other agencies is appropriate; please discuss any such planned use with the scientist listed below. We welcome collaborations and will lend our scientific expertise in interpretation and evaluation of the data.
Contact scientist:
Link to:
Report on "Spatial and Temporal Variations in Mixing Height in Houston"Last updated: 4 October 2007
ETL TexAQS page
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