Software Routines #2

All,

Here are a few pages that will hopefully help use and understand the code and output.

Cheers,

Michael

--

Michael Studinger

Operation IceBridge Project Scientist

NASA Goddard Space Flight Center

Cryospheric Sciences Laboratory, Code 615

Greenbelt, MD 20771, USA

Phone: +1-301-614-6908

http://www.nasa.gov/icebridge/

From: Studinger, Michael (GSFC-6150)

Sent: Friday, August 22, 2014 10:19 AM

To: Yungel, James K. (WFF-615.0)[EG&G TECHNICAL SERVICES INC]; Linkswiler, Matthew A. (WFF-616.0)[EG&G TECHNICAL SERVICES INC]; Chibisov, Alexey V. (WFF-615.0)[SIGMA SPACE CORPORATION]; KURTZ, NATHAN T. (GSFC-6150); Richter-Menge, Jacqueline

Subject: MATLAB code and data products

Jim and everyone,

I have added a CSV ASCII output option to the code and produced csv files for all 42 flights. These text files should be very easy to use. In addition to this the code is also capable of creating ArcGIS shapefile format in point geometry. The shapefiles are also available for distribution. I’ll send you a mini user manual for the code sometime over the weekend.

I have rewritten the code to allow people to process individual files or do batch processing on all files. This, together with some other processing options, can be interactively selected by the user when running the code. I have debated adding the dark spectrum correction, but decided not to because of time and also because I think at this stage we should keep the data as close as possible to raw for people to discover any potential issues with the data rather than the subsequent processing. The parameter input box is:

If the user selects individual file processing the file selection dialog box will pop up next:

I have also produced a comprehensive header for the CSV files that documents the processing steps and selected parameters and provides some basic quality control numbers as well. An example header is given below.

You have 30 days from 08-22-2014 to download the file(s) from the following URL:

https://opendrive.gsfc.nasa.gov/longauth/a/cvYthYC

Let me know if anything does not work or is faulty,

Michael

--

Michael Studinger

Operation IceBridge Project Scientist

NASA Goddard Space Flight Center

Cryospheric Sciences Laboratory, Code 615

Greenbelt, MD 20771, USA

Phone: +1-301-614-6908

http://www.nasa.gov/icebridge/

# -----------------------------------------------------------------------------------------------------------

#

# NASA Operation IceBridge: ATM Spectrometer Data

#

# Spectrometer data files used for processing:

# --------------------------------------------

# Upward looking spectrometer: 20140514_111854.geolocated_uplooking_spectra.csv

# Downward looking spectrometer: 20140514_111854.geolocated_downlooking_spectra.csv

#

# Time stamps in input files:

# ---------------------------

# Up: first: 05/14/2014 11:14:33 | last: 05/14/2014 18:46:44

# Down: first: 05/14/2014 11:14:31 | last: 05/14/2014 18:46:41

#

# Sampling interval up: mean: 6.00 secs | min: 4.24 secs | max: 6.81 secs

# Sampling interval down: mean: 6.00 secs | min: 4.81 secs | max: 6.82 secs

# Delta t (up - down): mean: 3.00 secs | min: 1.48 secs | max: 3.43 secs

#

# Processing details:

# -------------------

# MATLAB script used to process data: process_spectrometer_data_v5_1.m

# Data processed on: August 22, 2014 09:52:38

# Data processed by: Michael Studinger, NASA/GSFC

# Despiked dead channel at 721.902 nm: yes

# Spectral window for integration: 396.219 nm to 885.333 nm

#

#

# Longitude, Latitude, UTC Time uplooking, Ratio, Ratio_c, Count_up, Count_down, Sun_e

# -----------------------------------------------------------------------------------------------------------

#

-69.3737370, 76.5292430, 05/14/2014 11:14:33, 0.5354735, 0.1875268, 8762526.783, 4692101.247, 20.50

-69.3932130, 76.5343260, 05/14/2014 11:14:40, 0.4753313, 0.1664645, 9554214.699, 4541417.027, 20.50

-69.4080130, 76.5395820, 05/14/2014 11:14:46, 0.4183705, 0.1465164, 10614122.315, 4440635.465, 20.50

-69.4203420, 76.5458290, 05/14/2014 11:14:52, 0.4223200, 0.1478996, 10714655.892, 4525013.437, 20.50

-69.4279230, 76.5519470, 05/14/2014 11:14:58, 0.4080092, 0.1428878, 11149127.181, 4548946.846, 20.50

-69.4314790, 76.5581910, 05/14/2014 11:15:04, 0.4148767, 0.1452929, 11081977.709, 4597654.678, 20.50