Title:  INDOEX: Ron Brown Ancillary Navigation and Meteorological Oceanographic 
        Parameters (Bates)

Contact:

Timothy Bates
NOAA/PMEL
7600 Sand Point Way NE
Seattle, WA 98115
Phone: 206 526 6248
Fax: 206 526 6744
Email: bates@pmel.noaa.gov

Dataset Description:

These data are provided to help those researches who would like high time 
resolution data to check for episodes of possible ship contamination in their 
measurements. The data are given in a csv (comma separated value) ASCII format.  
Users may save the files to a local disk and open them up in a common 
spreadsheet like Excel.

The wind was measured with the PMEL Qualimetrics Skyvane 2100 anemometer which
was located at the top of the PMEL aerosol sampling mast.  The relative wind 
speed is in  meters per second and the direction is in degrees from the ship's 
bow.  Wind from dead ahead is 0 degrees, wind from the port beam is -90 degrees, 
wind from the starboard beam is +90 degrees.  The 1-minute record from three 
particle counters (CN) is also given. During conditions of ship contamination, 
there were noticeable spikes in the CN record.  The CN data, available on this 
page  have been edited to remove values when the CN counters were returning bad 
data (such as when they were low on butyl alcohol, when the butyl alcohol was 
saturated with water, or during calibration periods).  These bad data have been 
replaced with -99.  In this data set the ship contamination has not been edited 
out.  There are also spikes of CN in the data that result from ships passing 
upwind of the Ronald H Brown.   The three CN counters were CN1D, the TSI 3010 
that sampled Directly from the sample mast inlet.  CN1C, the TSI 3010 Control 
that sample from a faster sample line that the data system used to detect ship 
contamination periods, and UFCN1 the TSI 3025, that sampled Ultra Fine particles 
from the sample mast inlet (all particles > 3 nm diameter).  All CN data is in
units of particles per cubic centimeter.   Please note that there are time gaps 
in the files, some minutes are missing.

Reference:

http://saga.pmel.noaa.gov/indoex/rwind/index.html