1 ====================================================================== |
1 ====================================================================== |
2 R E A D M E |
2 R E A D M E |
3 doc: Tue May 15 18:10:40 2012 |
3 doc: Tue May 15 18:10:40 2012 |
4 dlm: Fri Oct 19 10:03:50 2012 |
4 dlm: Sat Mar 16 13:27:24 2013 |
5 (c) 2012 A.M. Thurnherr |
5 (c) 2012 A.M. Thurnherr |
6 uE-Info: 61 46 NIL 0 0 72 3 2 8 NIL ofnI |
6 uE-Info: 18 14 NIL 0 0 72 3 2 8 NIL ofnI |
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8 |
8 |
9 This directory contains a re-implementation of the shear method for |
9 This directory contains a re-implementation of the shear method for |
10 LADCP velocity processing, written and copyrighted by A.M. Thurnherr; |
10 LADCP velocity processing, written and copyrighted by A.M. Thurnherr; |
11 the appropriate reference is Thurnherr [J. Tech., 2012, DOI: |
11 the appropriate reference is Thurnherr [J. Tech., 2012, DOI: |
12 10.1175/JTECH-D-11-00158.1]. |
12 10.1175/JTECH-D-11-00158.1]. |
13 |
13 |
14 Essentially, the software is a re-implementation of the shear method |
14 Essentially, the software is a re-implementation of the shear method |
15 for LADCP velocity processing. Data editing borrows heavily from Eric |
15 for LADCP velocity processing. Data editing borrows heavily from Eric |
16 Firing's c/Matlab/perl code that was used extensively during the later |
16 Firing's c/Matlab/perl code that was used extensively during the later |
17 stages of the WOCE. However, some of the algorithms were simplified |
17 stages of the WOCE. However, some of the algorithms were simplified. |
18 considerably, in particular |
18 In particular, |
19 |
19 |
20 1) a much simpler gridding algorithm is used |
20 1) a much simpler gridding algorithm is used, and |
21 2) no PPI editing is carried out |
21 2) there is no support for using GPS data for velocity referencing. |
22 3) there is no support for using GPS data for velocity referencing |
|
23 |
22 |
24 In regions of good scattering, the shear output from this software when |
23 In regions of good scattering, the shear output from this software when |
25 applied to data collected with current RDI instruments can be expected |
24 applied to data collected with current RDI instruments can be expected |
26 to be very similar to the corresponding output from Eric's code with |
25 to be very similar to the corresponding output from Eric's code with |
27 PPI editing disabled, except that the high wavenumbers are considerably |
26 PPI editing disabled, except that the high wavenumbers are considerably |