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Sounding Analysis and Research Tools: What is used at Rapid City?. Matthew J. Bunkers NOAA/NWS, Rapid City, SD. Motivation. Do you like this graph?. Or this one?. Motivation. Do you want to make charts like this?. http://www.crh.noaa.gov/unr/?n=pw. Outline. Plot and analyze a hodograph

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sounding analysis and research tools what is used at rapid city

Sounding Analysis and Research Tools: What is used at Rapid City?

Matthew J. Bunkers

NOAA/NWS, Rapid City, SD

12th Annual Northern Plains Workshop, Bismarck, ND, 8-9 April 2008

motivation
Motivation

Do you like this graph?

Or this one?

motivation1
Motivation

Do you want to make charts like this?

http://www.crh.noaa.gov/unr/?n=pw

outline
Outline
  • Plot and analyze a hodograph
  • Create a precipitable water chart
  • Tell you where to get the tools
hodograph
Hodograph
  • Get data – http://raob.fsl.noaa.gov; or radiosonde database on CD-ROMs
  • Run C program – hodo.c
    • Need UNIX/Linux
  • Plot in spreadsheet – Excel graph
    • Customize, analyze, print, save image
hodograph get data
Hodograph – Get data

6/6/04:

70-110 nm

NW of BIS

Ord: 240 @ 30 kts

RM: 269 @ 26 kts

LM: 217 @ 47 kts

hodograph get data1
Hodograph – Get data

http://raob.fsl.noaa.gov/

Plus Radiosonde Database of North America CD-ROMs (1948mid 1990s)

hodograph excel spreadsheet
Hodograph – Excel spreadsheet

Ord: 240 @ 30 kts

RM: 269 @ 26 kts

LM: 217 @ 47 kts

precipitable water
Precipitable water
  • Get data – http://raob.fsl.noaa.gov; or radiosonde database on CD-ROMs
  • Run C program – pw.c
  • Plot in spreadsheet – Excel graph
    • Customize, analyze, print, save image
precipitable water get data
Precipitable water – Get data

http://raob.fsl.noaa.gov/

Plus Radiosonde Database of North America CD-ROMs (1948mid 1990s)

precipitable water get data2
Precipitable water – Get data

May have to concatenate several files; put 999 at end

precipitable water pw c
Precipitable water – pw.c
  • Compile this program just like hodo.c
    • See comments within program
where do i get this
Where do I get this?
  • http://www.crh.noaa.gov/unr/?n=scm
  • convectM.c
    • Computes multiple sounding variables
wrap up
Wrap-up
  • These programs provide opportunity for nice graphics and climatological studies
  • Garbage input soundings = garbage output variables
  • I don’t provide “official” support
  • New variables don’t get added quickly
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