Files on this directory were created by NODC from the originator's files.

This file shows how the datafile, wera_oahu_bis.mat, looks inside matlab,
describes the arrays, and gives metadata of the methodology.
For descriptions of how the ASCII file were created in
this directory, see matlab_export.txt.

Patrick Caldwell, NODC
January 22, 2007

>> load wera_oahu_bis
>> wera
 
wera =
 
         U: [14x15x6201 double]
         V: [14x15x6201 double]
        UU: [14x15x6201 double]
        UV: [14x15x6201 double]
        VV: [14x15x6201 double]
         x: [1x15 double]
         y: [14x1 double]
         t: [1x6201 double]
      xkoo: -158.1230
      ykoo: 21.3265
      xkna: -158.2578
      ykna: 21.5660
    readme: [22x59 char]

>> wera.readme
 
ans =
 
Hourly surface currents measured by HF-radars (WERA type)
in the lee of Oahu, Hawaii, from Sep 2002 to May 2003.
                                                            
Description of variables:
(U,V): (zonal,meridional) component of current [m/s]
UU: zonal variance factor [adimensional]
UV: zonal and meridional covariance factor [adimensional]
VV: meridional variance factor [adimensional]
(x,y): (longitudes,latitudes) of currents [degrees]
t: time [days since 01/00/0000]
(xkoo,ykoo): (longitude,latitude) of the radar at Ko'Olina
(xkna,ykna): (longitude,latitude) of the radar at Kaena
                                                            
Methodology:
Vector currents were combined from measured radial currents
on a 5-km cartesian grid by least-square fitting
zonal and meridional components to radial components
within a 5-km search radius.
(UU,UV,VV) are the components of the
Geometrical Dilution Of Precision (GDOP) matrix.
See Chavanne et al., 2007 (JPO) for more information.
PI: Pierre Flament, University of Hawaii.
 
>>