Setup¶
In [138]:
!wget http://www.ldeo.columbia.edu/res/pi/MB-System/mbcookbook.pdf
In [2]:
!open mbcookbook.pdf
Data and source code is available here: ftp://ftp.ldeo.columbia.edu/pub/MB-System
In [138]:
!wget ftp://ftp.ldeo.columbia.edu/pub/MB-System/mbexamples.tgz
In [ ]:
!wget ftp://ftp.ldeo.columbia.edu/pub/MB-System/MB-SystemExamples.5.1.0.tar.gz
In [ ]:
!wget ftp://ftp.ldeo.columbia.edu/pub/MB-System/loihi.tgz
In [ ]:
# TODO: use python to find the current version number
!wget ftp://ftp.ldeo.columbia.edu/pub/MB-System/mbsystem-5.3.2012.tar.gz
In [12]:
ls -lh *gz
-rw-r--r-- 1 schwehr 5000 26M Feb 2 10:21 MB-SystemExamples.5.1.0.tar.gz -rw-r--r-- 1 schwehr 5000 375M Feb 2 10:25 loihi.tgz -rw-r--r-- 1 schwehr 5000 25M Feb 2 10:21 mbexamples.tgz
In [7]:
!tar tf mbexamples.tgz | wc -l
356
In [11]:
!tar tfvv mbexamples.tgz | grep -v CVS | head
drwxr-xr-x vschmidt/vschmidt 0 2007-03-09 13:23 mbexamples/ drwxr-xr-x vschmidt/vschmidt 0 2005-10-31 13:17 mbexamples/mblist/ -rwxr-xr-x vschmidt/vschmidt 982 2002-10-31 14:07 mbexamples/mblist/mblist.cmd drwxr-xr-x vschmidt/vschmidt 0 2005-10-31 13:17 mbexamples/data/ -rw-r--r-- vschmidt/vschmidt 339293 2002-10-31 14:07 mbexamples/data/example_hs.mb24 -rw-r--r-- vschmidt/vschmidt 1276 2002-10-31 14:07 mbexamples/data/.gmtdefaults -rw-r--r-- vschmidt/vschmidt 1449 2002-10-31 14:07 mbexamples/data/README -rw-r--r-- vschmidt/vschmidt 45240 2002-10-31 14:07 mbexamples/data/example_sb.mb16 -rw-r--r-- vschmidt/vschmidt 508844 2002-10-31 14:07 mbexamples/data/example_sb2000.mb33 -rw-r--r-- vschmidt/vschmidt 59000 2002-10-31 14:07 mbexamples/data/example_sb.mb11
In [ ]:
!tar xf mbexamples.tgz
In [13]:
ls mbexamples
README data/ mbbath/ mbinfo/ mbm_plot/ cookbook_examples/ gridfilelist mbgrid/ mblist/ xbt/
In [14]:
ls mbexamples/cookbook_examples/
example_sb.mb16.cmd* example_sb.mb16.jpg example_sb_mb16.png stats survey_filelist.124 survey_filelist.124.ps survey_heading.dat example_sb.mb16.gif example_sb.mb16.ps other_data_sets/ stats_percent survey_filelist.124.cmd* survey_heading
Chapter 3: Surveying Your Survey with MB-System¶
3.1 Managing Your Data with mbdatalist¶
In [15]:
pwd
Out[15]:
u'/Users/schwehr/Desktop/mbcookbook'
In [16]:
cd ~/Desktop/mbcookbook/mbexamples/cookbook_examples/other_data_sets/ew0204survey
/Users/schwehr/Desktop/mbcookbook/mbexamples/cookbook_examples/other_data_sets/ew0204survey
In [18]:
ls | head
00020504090010.mb183 00020504090010.mb183.fbt 00020504090010.mb183.fnv 00020504090010.mb183.inf 00020504091010.mb183 00020504091010.mb183.fbt 00020504091010.mb183.fnv 00020504091010.mb183.inf 00020504092010.mb183 00020504092010.mb183.fbt
In [20]:
!ls *.mb183 > tmplist
!wc -l tmplist
64 tmplist
In [22]:
!mbdatalist -I tmplist | head -4
00020504090010.mb183 183 1.000000 00020504091010.mb183 183 1.000000 00020504092010.mb183 183 1.000000 00020504093010.mb183 183 1.000000
In [23]:
!mbdatalist -F-1 -I tmplist | head -4
00020504090010.mb183 183 1.000000 00020504091010.mb183 183 1.000000 00020504092010.mb183 183 1.000000 00020504093010.mb183 183 1.000000
In [24]:
!mbdatalist -I tmplist > datalist-1
!wc -l datalist-1
64 datalist-1
In [25]:
# I am not sure why the instructions switched to filelist.124 when we already have tmplist
!diff filelist.124 tmplist
65d64 < filelist.124
In [27]:
# mbdatalist "-N" option creats "inf", "fbt", and "fnv" files. But we already have them
!ls -l 00020504160010.mb183*
-rw-r--r-- 1 schwehr 5000 659772 Oct 23 2002 00020504160010.mb183 -rw-r--r-- 1 schwehr 5000 72004 Oct 24 2002 00020504160010.mb183.fbt -rw-r--r-- 1 schwehr 5000 5808 Oct 24 2002 00020504160010.mb183.fnv -rw-r--r-- 1 schwehr 5000 2520 Oct 24 2002 00020504160010.mb183.inf
In [29]:
# Sadly, the unix file command knows nothing about them
!file 00020504160010.mb183*
00020504160010.mb183: data 00020504160010.mb183.fbt: data 00020504160010.mb183.fnv: ASCII text 00020504160010.mb183.inf: ASCII text
In [30]:
!mbdatalist -F-1 -I datalist-1 -R170.133/170.35/42.2/42.4 > survey-datalist
!head -4 survey-datalist
00020504100010.mb183 183 1.000000 00020504101010.mb183 183 1.000000 00020504102010.mb183 183 1.000000 00020504103010.mb183 183 1.000000
In [31]:
# We loose a whole bunch of files by re
!wc -l survey-datalist
42 survey-datalist
3.2. Plotting Data¶
In [32]:
# Anything else in this directory?
!ls | egrep -v 'mb183(.fbt|.fnv|.inf)?$'
datalist-1 filelist.124 survey-datalist tmplist
In [58]:
# Make a navigation plot
!mbm_plot -I survey-datalist -N
Plot generation shellscript <survey-datalist.cmd> created. Instructions: Execute <survey-datalist.cmd> to generate Postscript plot <survey-datalist.ps>. Executing <survey-datalist.cmd> also invokes ghostview to view the plot on the screen.
In [59]:
!ls -ltr | tail -3
-rw-r--r-- 1 schwehr 5000 234941 Feb 2 11:06 survey-datalist.png -rw-r--r-- 1 schwehr 5000 597651 Feb 2 19:48 survey-datalist.ps -rwxrwxr-x 1 schwehr 5000 1797 Feb 2 19:49 survey-datalist.cmd
In [60]:
# Ouch... csh script
!head -1 survey-datalist.cmd
#! /bin/csh -f
In [61]:
!./survey-datalist.cmd 2>&1 | tail -5
Resetting GMT fonts... Running ghostview in background... [1] 87556 All done! ghostview: Command not found.
In [37]:
!ls -ltr | tail -3
-rw-r--r-- 1 schwehr 5000 1428 Feb 2 10:44 survey-datalist -rwxrwxr-x 1 schwehr 5000 1797 Feb 2 10:49 survey-datalist.cmd -rw-r--r-- 1 schwehr 5000 37368 Feb 2 10:50 survey-datalist.ps
In [38]:
# I do not have ghostscript setup on my machine, so make a PNG image
# with ImageMagick/GraphicsMagick and open that
!convert survey-datalist.ps survey-datalist.png
In [40]:
im = imread('survey-datalist.png')
imshow(im, cmap=get_cmap('gray'))
Out[40]:
<matplotlib.image.AxesImage at 0x10f515b10>
In [41]:
# Make a color filled plot
!mbm_plot -I survey-datalist -G1
Plot generation shellscript <survey-datalist.cmd> created. Instructions: Execute <survey-datalist.cmd> to generate Postscript plot <survey-datalist.ps>. Executing <survey-datalist.cmd> also invokes ghostview to view the plot on the screen.
In [62]:
!./survey-datalist.cmd 2>&1 | tail -5
Resetting GMT fonts... Running ghostview in background... [1] 87581 All done! ghostview: Command not found.
In [43]:
!convert survey-datalist.ps survey-datalist.png
In [45]:
im = imread('survey-datalist.png')
imshow(im)
Out[45]:
<matplotlib.image.AxesImage at 0x1122c2550>
In [50]:
# Contours, color and navigation
!mbm_plot -I survey-datalist -G1 -N -C
Plot generation shellscript <survey-datalist.cmd> created. Instructions: Execute <survey-datalist.cmd> to generate Postscript plot <survey-datalist.ps>. Executing <survey-datalist.cmd> also invokes ghostview to view the plot on the screen.
In [57]:
!./survey-datalist.cmd 2>&1 | tail -5
Resetting GMT fonts... Running ghostview in background... [1] 87515 All done! ghostview: Command not found.
In [53]:
!convert survey-datalist.ps survey-datalist.png
im = imread('survey-datalist.png')
imshow(im)
Out[53]:
<matplotlib.image.AxesImage at 0x1131032d0>
In [54]:
# Shaded relief plot of the bathymetry
!mbm_plot -I survey-datalist -G2
!./survey-datalist.cmd 2>&1 | tail -5
!convert survey-datalist.ps survey-datalist.png
im = imread('survey-datalist.png')
imshow(im)
Plot generation shellscript <survey-datalist.cmd> created. Instructions: Execute <survey-datalist.cmd> to generate Postscript plot <survey-datalist.ps>. Executing <survey-datalist.cmd> also invokes ghostview to view the plot on the screen. Resetting GMT fonts... Running ghostview in background... [1] 68348 All done! ghostview: Command not found.
Out[54]:
<matplotlib.image.AxesImage at 0x113a99090>
In [55]:
# Multibeam backscatter plot
!mbm_plot -I survey-datalist -G5
!./survey-datalist.cmd 2>&1 | tail -5
!convert survey-datalist.ps survey-datalist.png
im = imread('survey-datalist.png')
imshow(im)
Plot generation shellscript <survey-datalist.cmd> created. Instructions: Execute <survey-datalist.cmd> to generate Postscript plot <survey-datalist.ps>. Executing <survey-datalist.cmd> also invokes ghostview to view the plot on the screen. Resetting GMT fonts... Running ghostview in background... [1] 68390 All done! ghostview: Command not found.
Out[55]:
<matplotlib.image.AxesImage at 0x11445f410>
3.3 Extracting Statistics¶
In [56]:
pwd
Out[56]:
u'/Users/schwehr/Desktop/mbcookbook/mbexamples/cookbook_examples/other_data_sets/ew0204survey'
In [64]:
!mbinfo -I00020504090010.mb183
Swath Data File: 00020504090010.mb183
MBIO Data Format ID: 183
Format name: MBF_HSDS2LAM
Informal Description: L-DEO HSDS2 processing format
Attributes: STN Atlas multibeam sonars,
Hydrosweep DS2, Hydrosweep MD,
Fansweep 10, Fansweep 20,
bathymetry, amplitude, and sidescan,
up to 1440 beams and 4096 pixels,
XDR binary, L-DEO.
Data Totals:
Number of Records: 37
Bathymetry Data (140 beams):
Number of Beams: 5180
Number of Good Beams: 5106 98.57%
Number of Zero Beams: 74 1.43%
Number of Flagged Beams: 0 0.00%
Amplitude Data (140 beams):
Number of Beams: 5180
Number of Good Beams: 5106 98.57%
Number of Zero Beams: 74 1.43%
Number of Flagged Beams: 0 0.00%
Sidescan Data (2180 pixels):
Number of Pixels: 73815
Number of Good Pixels: 73815 100.00%
Number of Zero Pixels: 0 0.00%
Number of Flagged Pixels: 0 0.00%
Navigation Totals:
Total Time: 0.1593 hours
Total Track Length: 3.4493 km
Average Speed: 21.6521 km/hr (11.7038 knots)
Start of Data:
Time: 05 04 2002 08:59:56.460000 JD124 (2002-05-04T08:59:56.460000)
Lon: 169.879233333 Lat: 42.134316667 Depth: 5057.7613 meters
Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 46.1206 degrees
Sonar Depth: 5.8000 m Sonar Altitude: 5051.9613 m
End of Data:
Time: 05 04 2002 09:09:29.968000 JD124 (2002-05-04T09:09:29.968000)
Lon: 169.908366667 Lat: 42.156333333 Depth: 4950.8452 meters
Speed: 21.0345 km/hr (11.3700 knots) Heading: 43.9014 degrees
Sonar Depth: 5.1000 m Sonar Altitude: 4945.7452 m
Limits:
Minimum Longitude: 169.826833737 Maximum Longitude: 169.960536614
Minimum Latitude: 42.096614600 Maximum Latitude: 42.197029161
Minimum Sonar Depth: 4.6000 Maximum Sonar Depth: 6.7000
Minimum Altitude: 4817.2718 Maximum Altitude: 5051.9613
Minimum Depth: 4770.9467 Maximum Depth: 5347.7265
Minimum Amplitude: 7.0000 Maximum Amplitude: 241.0000
Minimum Sidescan: 0.0000 Maximum Sidescan: 255.0000
In [68]:
!mbinfo -F-1 -Isurvey-datalist | wc -l
506
In [70]:
!mbinfo -F-1 -Isurvey-datalist | head -20
Swath Data File: 00020504100010.mb183
MBIO Data Format ID: 183
Format name: MBF_HSDS2LAM
Informal Description: L-DEO HSDS2 processing format
Attributes: STN Atlas multibeam sonars,
Hydrosweep DS2, Hydrosweep MD,
Fansweep 10, Fansweep 20,
bathymetry, amplitude, and sidescan,
up to 1440 beams and 4096 pixels,
XDR binary, L-DEO.
Swath Data File: 00020504101010.mb183
MBIO Data Format ID: 183
Format name: MBF_HSDS2LAM
Informal Description: L-DEO HSDS2 processing format
Attributes: STN Atlas multibeam sonars,
Hydrosweep DS2, Hydrosweep MD,
Fansweep 10, Fansweep 20,
bathymetry, amplitude, and sidescan,
In [71]:
!mbinfo -F-1 -Isurvey-datalist | tail -20
Start of Data: Time: 05 04 2002 09:59:44.485000 JD124 (2002-05-04T09:59:44.485000) Lon: 170.062583333 Lat: 42.272616667 Depth: 4508.8810 meters Speed: 0.0000 km/hr ( 0.0000 knots) Heading: 44.6704 degrees Sonar Depth: 6.0000 m Sonar Altitude: 4502.8810 m End of Data: Time: 05 04 2002 16:59:44.722000 JD124 (2002-05-04T16:59:44.722000) Lon: 170.271766667 Lat: 42.420866667 Depth: 1446.6716 meters Speed: 21.4741 km/hr (11.6076 knots) Heading: 35.9473 degrees Sonar Depth: 5.4000 m Sonar Altitude: 1441.2716 m Limits: Minimum Longitude: 170.003974345 Maximum Longitude: 170.361588384 Minimum Latitude: 42.161915723 Maximum Latitude: 42.446878937 Minimum Sonar Depth: 3.6000 Maximum Sonar Depth: 7.9000 Minimum Altitude: 990.7620 Maximum Altitude: 4740.1799 Minimum Depth: 973.2481 Maximum Depth: 6223.7055 Minimum Amplitude: 0.0000 Maximum Amplitude: 250.0000 Minimum Sidescan: 0.0000 Maximum Sidescan: 255.0000
Chapter 4: Processing Multibeam Data with MB-System¶
4.2: Identifying the MB-System Data Format¶
In [73]:
pwd
Out[73]:
u'/Users/schwehr/Desktop/mbcookbook/mbexamples/cookbook_examples/other_data_sets/ew0204survey'
In [74]:
!ls | head -5
00020504090010.mb183 00020504090010.mb183.fbt 00020504090010.mb183.fnv 00020504090010.mb183.inf 00020504091010.mb183
In [75]:
!man mbio | grep -A 10 183
MBIO Data Format ID: 183
Format name: MBF_HSDS2LAM
Informal Description: L-DEO HSDS2 processing format
Attributes: STN Atlas multibeam sonars,
Hydrosweep DS2, Hydrosweep MD,
Fansweep 10, Fansweep 20,
bathymetry, amplitude, and sidescan,
up to 1440 beams and 4096 pixels,
XDR binary, L-DEO.
4.3: Format Conversion¶
4.3.3 Converting Your Data - Sea Beam 2100¶
In [76]:
!man mbio | grep -B 2 'SeaBeam 2100'
MBIO Data Format ID: 41
Format name: MBF_SB2100RW
Informal Description: SeaBeam 2100 series vender format
Attributes: SeaBeam 2100, bathymetry,
--
MBIO Data Format ID: 42
Format name: MBF_SB2100B1
Informal Description: SeaBeam 2100 series vender format
Attributes: SeaBeam 2100, bathymetry,
--
MBIO Data Format ID: 43
Format name: MBF_SB2100B2
Informal Description: SeaBeam 2100 series vender format
Attributes: SeaBeam 2100, bathymetry and
--
The per-beam parameters in the SB2100 data format include angle-from-vertical and angle-forward. Angle-from-vertical is the same as theta except that it is
signed based on the acrosstrack direction (positive to starboard, negative to port). The angle-forward values are also defined slightly differently from phi, in
that angle-forward is signed differently on the port and starboard sides. The SeaBeam 2100 External Interface Specifications document includes both discussion
In [85]:
pwd
Out[85]:
u'/Users/schwehr/Desktop/mbcookbook/mbexamples'
In [86]:
# What mb### do we have for the files in the examples?
!find . | egrep '\.mb[0-9]+$' | xargs basename | cut -d\. -f2 | sort -u
mb11 mb16 mb183 mb24 mb32 mb33
In [91]:
# Of a slightly more (but not totally) python way of getting this list. Not a particularly good style
all_files = !find . | egrep '\.mb[0-9]+$'
import os
ext_list = [os.path.splitext(filepath)[1].replace('.mb','') for filepath in all_files]
sorted([int(mb_fmt_num) for mb_fmt_num in set(ext_list)])
Out[91]:
[11, 16, 24, 32, 33, 183]
"You will find that the data files [snip] have already been converted to MB-system Format ID 57". Really? Oh, I have to unpack loihi.tgz.
In [92]:
cd ..
/Users/schwehr/Desktop/mbcookbook
In [94]:
ls -lh loihi.tgz
-rw-r--r-- 1 schwehr 5000 375M Feb 2 10:25 loihi.tgz
In [95]:
!tar xf loihi.tgz
In [96]:
!du -hs loihi
661M loihi
In [99]:
cd loihi
/Users/schwehr/Desktop/mbcookbook/loihi
In [100]:
# TODO: show a cleaner way to do this with just python
all_files = !find . | egrep '\.mb[0-9]+$'
ext_list = [os.path.splitext(filepath)[1].replace('.mb','') for filepath in all_files]
sorted([int(mb_fmt_num) for mb_fmt_num in set(ext_list)])
Out[100]:
[16, 57, 121]
In [107]:
!man mbio | egrep -A 4 'ID:[ ]+(16|57)$'
MBIO Data Format ID: 16
Format name: MBF_SBSIOSWB
Informal Description: SIO Swath-bathy SeaBeam
Attributes: Sea Beam, bathymetry, 19 beams,
binary, centered, SIO.
--
MBIO Data Format ID: 57
Format name: MBF_EM300MBA
Informal Description: Simrad multibeam processing format
Attributes: Old and new Simrad multibeams,
EM12S, EM12D, EM121, EM120,
In [101]:
!find . -name \*.mb16
./TUNE04WT/TUNE04WT.SWSB.91oct07p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct08p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct09p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct10p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct11p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct12p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct15p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct16p.mb16 ./TUNE04WT/TUNE04WT.SWSB.91oct17p.mb16
In [102]:
!cp ./TUNE04WT/TUNE04WT.SWSB.91oct07p.mb16 test.mb16
In [108]:
!mbinfo -Itest.mb16 | grep Minimum
Minimum Longitude: -157.806590278 Maximum Longitude: -155.714683638 Minimum Latitude: 18.867588784 Maximum Latitude: 21.210987915 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 0.0000 Maximum Altitude: 4805.0000 Minimum Depth: 43.0000 Maximum Depth: 4886.0000
In [109]:
# This does not work, so I will just paste in the results I got from the command line
!mbcopy -F16/57 -Itest.mb16 -Otest.mb57
Ran this:
mbcopy -F16/57 -Itest.mb16 -Otest.mb57 -V
Got this:
Program MBcopy
Version $Id: mbcopy.c 1934 2012-02-22 07:51:16Z caress $
MB-system Version 5.3.2012
Comments:
Swath data modified by program mbprocess
Segmentation fault: 11
In [110]:
!rm test.mb16 test.mb57
In [111]:
!find . -name \*.mb57
./MBARI1998EM300/mbari_1998_53_msn.mb57 ./MBARI1998EM300/mbari_1998_54_msn.mb57 ./MBARI1998EM300/mbari_1998_55_msn.mb57 ./MBARI1998EM300/mbari_1998_56_msn.mb57 ./MBARI1998EM300/mbari_1998_57_msn.mb57 ./MBARI1998EM300/mbari_1998_58_msn.mb57 ./MBARI1998EM300/mbari_1998_59_msn.mb57 ./MBARI1998EM300/mbari_1998_60_msn.mb57 ./MBARI1998EM300/mbari_1998_61_msn.mb57
4.4 Survey and Organize the Data¶
In [112]:
ls -lh
total 24 drwxr-xr-x 156 schwehr 5000 5.2K Jun 4 2004 HUGO97/ drwxr-xr-x 13 schwehr 5000 442B Jun 4 2004 MBARI1998EM300/ -rw-r--r-- 1 schwehr 5000 1.8K Jul 3 2004 README drwxr-xr-x 58 schwehr 5000 1.9K Jun 4 2004 SumnerLoihi1997/ drwxr-xr-x 68 schwehr 5000 2.3K Jun 4 2004 TUNE04WT/ -rw-r--r-- 1 schwehr 5000 135B Nov 25 2002 datalist.mb-1 -rw-r--r-- 1 schwehr 5000 25B Nov 18 2002 datalistp.mb-1
In [113]:
cat datalist.mb-1
HUGO97/datalist.mb-1 -1 100.0 MBARI1998EM300/datalist.mb-1 -1 1.0 SumnerLoihi1997/datalist.mb-1 -1 0.1 TUNE04WT/datalist.mb-1 -1 0.001
In [114]:
cat datalistp.mb-1
$PROCESSED datalist.mb-1
In [115]:
cat MBARI1998EM300/datalist.mb-1
mbari_1998_53_msn.mb57 57 mbari_1998_54_msn.mb57 57 mbari_1998_55_msn.mb57 57 mbari_1998_56_msn.mb57 57 mbari_1998_57_msn.mb57 57 mbari_1998_58_msn.mb57 57 mbari_1998_59_msn.mb57 57 mbari_1998_60_msn.mb57 57 mbari_1998_61_msn.mb57 57
In [116]:
cd MBARI1998EM300
/Users/schwehr/Desktop/mbcookbook/loihi/MBARI1998EM300
In [117]:
ls
README mbari_1998_53_msn.mb57 mbari_1998_55_msn.mb57 mbari_1998_57_msn.mb57 mbari_1998_59_msn.mb57 mbari_1998_61_msn.mb57 datalist.mb-1 mbari_1998_54_msn.mb57 mbari_1998_56_msn.mb57 mbari_1998_58_msn.mb57 mbari_1998_60_msn.mb57
In [118]:
ls *.mb57 > list
In [119]:
cat list
mbari_1998_53_msn.mb57 mbari_1998_54_msn.mb57 mbari_1998_55_msn.mb57 mbari_1998_56_msn.mb57 mbari_1998_57_msn.mb57 mbari_1998_58_msn.mb57 mbari_1998_59_msn.mb57 mbari_1998_60_msn.mb57 mbari_1998_61_msn.mb57
In [121]:
!mbdatalist -Ilist
mbari_1998_53_msn.mb57 57 1.000000 mbari_1998_54_msn.mb57 57 1.000000 mbari_1998_55_msn.mb57 57 1.000000 mbari_1998_56_msn.mb57 57 1.000000 mbari_1998_57_msn.mb57 57 1.000000 mbari_1998_58_msn.mb57 57 1.000000 mbari_1998_59_msn.mb57 57 1.000000 mbari_1998_60_msn.mb57 57 1.000000 mbari_1998_61_msn.mb57 57 1.000000
In [127]:
!rm list
rm: list: No such file or directory
4.4.1.2 The Benefit¶
In [ ]:
cd ..
In [128]:
pwd
Out[128]:
u'/Users/schwehr/Desktop/mbcookbook/loihi'
In [131]:
# This command will take a minute or 2 to run.
!mbinfo -Idatalist.mb-1 | grep -A 40 'Data Totals:'
Data Totals: Number of Records: 191764 Bathymetry Data (135 beams): Number of Beams: 12119082 Number of Good Beams: 9469099 78.13% Number of Zero Beams: 1590395 13.12% Number of Flagged Beams: 1059588 8.74% Amplitude Data (135 beams): Number of Beams: 7285751 Number of Good Beams: 6054808 83.10% Number of Zero Beams: 608084 8.35% Number of Flagged Beams: 622859 8.55% Sidescan Data (1024 pixels): Number of Pixels: 10155008 Number of Good Pixels: 10153984 99.99% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 1024 0.01% Navigation Totals: Total Time: -49797.0534 hours Total Track Length: 36092.8118 km Average Speed: 0.0000 km/hr ( 0.0000 knots) Start of Data: Time: 06 21 1997 19:01:07.393000 JD172 (1997-06-21T19:01:07.393000) Lon: -155.221418300 Lat: 18.882305500 Depth: 301.0800 meters Speed: 1.9631 km/hr ( 1.0611 knots) Heading: 229.1400 degrees Sonar Depth: 0.4300 m Sonar Altitude: 300.6500 m End of Data: Time: 10 16 1991 21:57:55.000000 JD289 (1991-10-16T21:57:55.000000) Lon: -157.878166667 Lat: 21.285280000 Depth: 33.0000 meters Speed: 20.5175 km/hr (11.0906 knots) Heading: 31.2014 degrees Sonar Depth: 0.0000 m Sonar Altitude: 33.0000 m Limits: Minimum Longitude: -157.880116086 Maximum Longitude: -153.382906577 Minimum Latitude: 18.568354360 Maximum Latitude: 21.285303394 Minimum Sonar Depth: -2.6500 Maximum Sonar Depth: 1530.4800 Minimum Altitude: -1498.0800 Maximum Altitude: 5483.1300 Minimum Depth: 0.0600 Maximum Depth: 5605.0000
In [137]:
!mbdatalist -I datalist.mb-1 -R155.5/155/18.7/19.2
MBARI1998EM300/mbari_1998_53_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_54_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_55_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_56_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_57_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_58_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_59_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_60_msn.mb57 57 1.000000 MBARI1998EM300/mbari_1998_61_msn.mb57 57 1.000000
In [138]:
# The above list does not match the cookbook.
!mbdatalist -I datalist.mb-1 | wc -l
31
In [135]:
!wc -l datalist.mb-1
4 datalist.mb-1
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