User Tools

Site Tools


atmos:raob:home

This is an old revision of the document!


Radiosonde

UND Atmospheric Science Glacial Ridge field site documentation exists as one large collection, fully searchable using the “Search” box on the left-hand side of the page. Indexes of documentation related to instruments at the field site and data handling processes are given below.

Documentation related to instruments and data at the department's field site http://glacialridge.atmos.und.edu/.

The site phone number is 218 637-2346.

Rain gauge data around Glacialridge is available from the USGS

Save Graw Sounding Data

There are two options to save the sounding data: the profile data table and the RTS table. For simplicity, it is good to save the data right after the launch, but it can be reloaded later on and saved later.

Profile Data Table

Once the sounding or sounding simulation is complete, click on the “Visualization” tab and click “Profile Data Table” button on the upper left portion of the Grawmet window. A table should appear with time, pressure, and temperature, as well as some other data. Click on the small button on the top left corner of the window that says “Save Active Diagram”. as a text file in /nas/Radiosonde/YYMMDD, with YYMMDD being a directory to hold the sounding data and images. If the folder does not exist, make one. The file name must be in this format:

“ProfileDataTable_YYMMDD.txt”

where YYMMDD is the year/month/day of the launch.

RTS Table

The RTS table is the format that can be read in RAOB. To save this table, click on the “Visualization” tab again. To the left of the Profile Data Table button, there should be a small box that contains an “XData” button. The arrows on the right side of the box allow you to browse through many diagrams and tables. Scroll through until you find the “RTS” button and click it. As with the Profile Data Table, click on the “Save Active Diagram” button. Save the RTS table as a text file in /nas/Radiosonde/YYMMDD with the format:

“YYMMDD_HHMMSS_GFK_GRAW.txt”

where YYMMDD is the year/month/day of the launch, HHMMSS is the hours, minutes, and seconds of the launch start time (this can be found from finding the raw data file in /Grawmet5/Data/), and the 3-character location is the identifier for the nearest station (GFK for most soundings).

Viewing Radiosonde Data

RAOB

There are two ways to view radiosonde data. The first is to use RAOB 6.5. In the old version of Grawmet, the Profile Data Table contained the data that is now in the RTS table. As a result, old Profile Data Tables are readable in RAOB, but not the newer ones. Now, only RTS tables are readable. To view a sounding, click File and Open Sounding, and open one of the RTS tables from /nas/Radiosonde/.

Radiosonde Launch Dates

Check here to see any issues with the computers/data collection at the field site:

atmos/raob/home.1497458222.txt.gz · Last modified: 2020/01/29 17:25 (external edit)