Epic 2001 cruise on R/V Ronald H. Brown
C. Fairall 3/29/00
chris.fairall@.noaa.gov

The ETL radar group operated a microwave radiometer (MWR) manufactured by Hughes for this
cruise; it is part of the MMCR package.  Contact Duane Hazen (ETL) for details on the
instrument.  Duane used sondes and tipcals to 'calibrate' the system.  I wrote a matlab program
that read his .sci datafiles, stripped out the stuff I wanted, and wrote new files with the raw 60-
sec time resolution (micro_sec_90.txt) and hourly time resolution (micro_h.txt).  The data on the
files is as follows:

micro_sec_90.txt         size= (16707,18)

1    decimal julian date
2    Date, time         MMDDHHSS
3    elevation             elevation angle of antenna
4    azimuth               azimuth angle of antenna
5    vapor                Vapor (cm)
6    liquid               Liquid (mm)
7    cbt                         Cloud base temperature (C)
8    tb[0]                      Brightness Temperature (K) for 20 GHz
9    tb[1]                      Brightness Temperature (K) for 31 GHz
10   temperature           surface temperature (C)
11   rel_humidity          surface Relative Humidity (0-100 %)
12   pressure                 Barometric Pressure (mb)
13   moisture_detect      moisture at the surface yes = 1 no = 0
14   tb[2]                       Brightness Temperature (K) for 90 GHz
15   -999             Unused
16   -999             Unused
17   longitude                longitude in degrees
18   latitude                   latitude in degrees

micro_hr_90.txt          size= (480,7)

:,1  decimal julian date
:,2  number of 60-s values in hourly median
:,3  IWC, integrated atmospheric water vapor (column precipitable water), cm
:,4  IWL, integrated cloud liquid content, cm
:,5  Tbrightness 21 GHz
:,6  Tbrightness 31 GHz
:,7  Tbrightness 90 GHz

To get this data, go to my ftp site:
ftp://ftp.etl.noaa.gov/et7/anonymous/cfairall/EPIC/epic2001/microwave_data/

Included on the ftp site are the original hourly files from Duane Hazen (YYMMDDHH.new), his
descriptions (datainfo.txt, pacs.txt), and the matlab file I did the processing with (micro_red.txt).