Swath Bathymetry Surveys of the Monterey Bay Area from Point Año Nuevo to Moss Landing, San Mateo, Santa Cruz, and Monterey Counties, California
Appendix A.1: Base Station BGCK Datasheet
| GPS Base Station Datasheet: BGCK (no longer operational) |
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| General Information |
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| Name: |
Big Creek Lumber |
| Four Letter Code: |
BGCK |
| Location: |
West side of roof of Big Creek Lumber building, above deck facing CA State Highway 1. |
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| Position Information |
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| Latitude(DMS): |
37 05' 21.58069'' N |
| Longitude(DMS) |
122 16' 22.88480'' W |
| Ellipsoid Ht. (m) |
30.509 |
| Datum |
ITRF00 [WGS84(G1150)] |
| Epoch |
2002.000 (1/1/2002) |
| Antenna Ht. |
0.6175m (center bolt on antenna mount is reference point) |
|
| For more detailed position information (NAD83 positions, Ortho. Hts.,etc), see: |
APPENDIX A.2 |
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| Radio Information |
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|
| Channel |
Government frequency. |
| Power Setting |
Low (2 W), can be switched to high(35 W) as needed |
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| Survey Information |
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|
| Method: |
Averaged OPUS (precise) solution for 1 static survey. Used HTDP software to transform position to 2002.00 epoch. |
| Dates of surveys: |
7/22/2009 |
| Receiver used for surveys: |
Ashtech Z-Extreme |
| Antenna used for surveys: |
Ashtech Geodetic IV |
| Conducted by: |
Joshua Logan, jlogan@usgs.gov |
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| Equipment Information |
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|
| Receiver used for base: |
Trimble R7, S/N: 4731K30587 |
| Antenna used for base: |
Zephyr Geodetic Model 2 |
| Radio used for base: |
Pacific Crest, PDL |
| Radio antenna: |
1 meter, black whip, mounted on deck railing. |
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| Power Setup Information |
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| GPS Receiver power: |
AC wall power, using Trimble 18V combo power/data cable connected to Port 2 on GPS. (18V required for automatic scheduled surveys) |
| Radio power: |
12V supplied by 12V DC power supply plugged into AC wall power. |
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| Settings (Programmed using Trimble GPS Configurator) |
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|
| General |
Track GLONASS |
OFF |
| Elevation Mask |
10 deg. |
| PDOP Mask |
7 |
| WAAS |
OFF |
| Serial output |
Port 3 |
CMR |
Port baud rate 9600 |
| Antenna |
Model |
Zephyr Geodetic Model 2, S/N: 30492556 |
| Ht (bottom) |
0.6175m |
(Base station reference point: Bolt at pivot point of antenna mount.) |
| Base |
CMR Plus |
Port 3 |
| Latitude(DMS): |
37 05' 21.58069'' N |
| Longitude(DMS) |
122 16' 22.88480'' W |
| Ellipsoid Ht. (m) |
30.509 |
| Logging |
Data logging rate |
1 sec. |
| Position logging rate |
15 sec. |
| Elevation mask |
10 deg. |
| Scheduled Surveys |
Start |
8/15/2009 5:00 |
| Duration |
15 hours |
| Repeat |
Daily (24 hours) |
| Sleep at survey end. |
| |
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|
Appendix A.2: Base Station BGCK OPUS Solution Report
FILE: BBGCKA09.203 000092555
NGS OPUS SOLUTION REPORT
========================
All computed coordinate accuracies are listed as peak-to-peak values.
For additional information: www.ngs.noaa.gov/OPUS/Using_OPUS.html#accuracy
USER: jlogan@usgs.gov DATE: August 11, 2009
RINEX FILE: bgck203v.09o TIME: 18:21:50 UTC
SOFTWARE: page5 0903.24 master30.pl 081023 START: 2009/07/22 21:39:00
EPHEMERIS: igs15413.eph [precise] STOP: 2009/07/23 14:58:00
NAV FILE: brdc2030.09n OBS USED: 40751 / 42591 : 96%
ANT NAME: ASH701975.01A NONE # FIXED AMB: 177 / 198 : 89%
ARP HEIGHT: 0.6425 OVERALL RMS: 0.018(m)
REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) ITRF00
(EPOCH:2009.5569)
X: -2719986.771(m) 0.008(m) -2719987.625(m) 0.008(m)
Y: -4307084.377(m) 0.024(m) -4307082.863(m) 0.024(m)
Z: 3825324.118(m) 0.007(m) 3825324.295(m) 0.007(m)
LAT: 37 5 21.56541 0.016(m) 37 5 21.58611 0.016(m)
E LON: 237 43 37.16514 0.019(m) 237 43 37.10317 0.019(m)
W LON: 122 16 22.83486 0.019(m) 122 16 22.89683 0.019(m)
EL HGT: 31.056(m) 0.009(m) 30.505(m) 0.009(m)
ORTHO HGT: 64.523(m) 0.105(m) [NAVD88 (Computed using GEOID03)]
UTM COORDINATES STATE PLANE COORDINATES
UTM (Zone 10) SPC (0403 CA 3)
Northing (Y) [meters] 4105028.615 566897.348
Easting (X) [meters] 564609.472 1842376.401
Convergence [degrees] 0.43843348 -1.08549333
Point Scale 0.99965142 0.99999540
Combined Factor 0.99964655 0.99999052
US NATIONAL GRID DESIGNATOR: 10SEG6460905029(NAD 83)
BASE STATIONS USED
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DI1085 P181 MILLERKNOXCN2005 CORS ARP N375452.343 W1222236.261 92046.3
DG9015 HSIB BURLINGAME COOP CORS ARP N373531.676 W1222209.836 56453.4
DH3879 P224 SIBLEYVOLCCN2005 CORS ARP N375150.009 W1221308.558 86102.1
NEAREST NGS PUBLISHED CONTROL POINT
HT3311 GREY N370514.871 W1221624.584 211.4
This position and the above vector components were computed without any
knowledge by the National Geodetic Survey regarding the equipment or
field operating procedures used.
Appendix A.3: Base Station BGCK HTDP Transformation Output
HTDP (version 3.0) OUTPUT
UPDATED POSITIONS IN WGS_84(G1150)
FROM 7-22-2009 TO 1-01-2002 (month-day-year)
OLD COORDINATE NEW COORDINATE VELOCITY DISPLACEMENT
BGCK
LATITUDE 37 05 21.58611 N 37 05 21.58069 N 22.19 mm/yr -0.167 m north
LONGITUDE 122 16 22.89683 W 122 16 22.88480 W -39.34 mm/yr 0.297 m east
ELLIP. HT. 30.505 30.509 -0.56 mm/yr 0.004 m up
X -2719987.625 -2719987.429 -25.88 mm/yr 0.196 m
Y -4307082.863 -4307083.110 32.70 mm/yr -0.247 m
Z 3825324.295 3825324.164 17.37 mm/yr -0.131 m
Appendix B.1: Base Station WRIG Datasheet
| GPS Base Station Datasheet: WRIG (no longer operational) |
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| General Information |
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| Name: |
Wrigley (USGS Marine Facility) |
| Four Letter Code: |
WRIG |
| Location: |
Antennas: Fixed mount on roof of Wrigley building, Santa Cruz, CA |
| Electronics: Electronics Technician Shop |
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| Position Information |
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|
| Latitude(DMS): |
36 57' 32.59811'' N |
| Longitude(DMS) |
122 03' 19.46333'' W |
| Ellipsoid Ht. (m) |
1.440 |
| Datum |
ITRF00 [WGS84(G1150)] |
| Epoch |
2002.000 (1/1/2002) |
| Antenna Ht. |
0.000m (bottom of antenna is reference point) |
|
| For more detailed position information (NAD83 positions, Ortho. Hts.,etc), see: |
Appendix B.2.xls |
| |
|
|
|
|
|
|
| Radio Information |
|
|
|
|
|
|
| Channel |
Government frequency. |
| Power Setting |
Low (2 W), can be switched to high(35 W) as needed |
| |
|
|
|
|
|
|
| Survey Information |
|
|
|
|
|
|
| Method: |
Averaged OPUS (rapid) solutions for 4 static surveys. Used HTDP software to transform position to 2002.00 epoch. |
| Dates of surveys: |
8/7/2009, 8/8/2009, 8/9/2009, 8/10/2009 |
| Receiver used for surveys: |
Trimble R7, S/N: 4723K30193 |
| Antenna used for surveys: |
Zephyr Geodetic Model 2, S/N: 30492556 |
| Conducted by: |
Joshua Logan, jlogan@usgs.gov |
| |
|
|
|
|
|
|
| Equipment Information |
|
|
|
|
|
|
| Receiver used for base: |
Trimble R7, S/N: 4723K30193 |
| Antenna used for base: |
Zephyr Geodetic Model 2, S/N: 30492556 |
| Radio used for base: |
Pacific Crest, PDL |
| Radio antenna: |
2 meter, white, on roof. |
| |
|
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|
|
|
|
| Power Setup Information |
|
|
|
|
|
|
| GPS Receiver power: |
AC wall power, using Trimble 18V combo power/data cable connected to Port 2 on GPS. (18V required for automatic scheduled surveys) |
| Radio power: |
12V supplied by 2, 12V 18Ah Sealed lead-acid batteries connected in parallel. Batteries continuously charged by 12 Amp. battery charger. |
| |
|
|
|
|
|
|
| Settings (Programmed using Trimble GPS Configurator) |
|
|
|
|
| General |
Track GLONASS |
OFF |
| Elevation Mask |
10 deg. |
| PDOP Mask |
7 |
| WAAS |
OFF |
| Serial output |
Port 3 |
CMR |
Port baud rate 9600 |
| Antenna |
Model |
Zephyr Geodetic Model 2, S/N: 30492556 |
| Ht (bottom) |
0.00m |
(Base station reference point: bottom of antenna) |
| Base |
CMR Plus |
Port 3 |
| Latitude(DMS): |
36 57' 32.59811'' |
| Longitude(DMS) |
122 03' 19.46333'' |
| Ellipsoid Ht. (m) |
1.440 |
| Logging |
Data logging rate |
1 sec. |
| Position logging rate |
15 sec. |
| Elevation mask |
10 deg. |
| Scheduled Surveys |
Start |
8/12/2009 5:00 |
| Duration |
15 hours |
| Repeat |
Daily (24 hours) |
| Sleep at survey end. |
|
|
|
Appendix B.2: Base Station WRIG OPUS Report
FILE: 01932192.09o 000091979
1008 NOTE: Antenna offsets supplied by the user were zero. Coordinates
1008 returned will be for the antenna reference point (ARP).
1008
NGS OPUS SOLUTION REPORT
========================
All computed coordinate accuracies are listed as peak-to-peak values.
For additional information: www.ngs.noaa.gov/OPUS/Using_OPUS.html#accuracy
USER: jlogan@usgs.gov DATE: August 10, 2009
RINEX FILE: 0193219b.09o TIME: 21:53:58 UTC
SOFTWARE: page5 0903.24 master40.pl 081023 START: 2009/08/07 01:16:00
EPHEMERIS: igr15435.eph [rapid] STOP: 2009/08/07 17:22:00
NAV FILE: brdc2190.09n OBS USED: 40251 / 41286 : 97%
ANT NAME: TRM55971.00 NONE # FIXED AMB: 154 / 166 : 93%
ARP HEIGHT: 0.0 OVERALL RMS: 0.018(m)
REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) ITRF00 (EPOCH:2009.5983)
X: -2708216.401(m) 0.001(m) -2708217.252(m) 0.001(m)
Y: -4324742.807(m) 0.030(m) -4324741.293(m) 0.030(m)
Z: 3813764.040(m) 0.009(m) 3813764.216(m) 0.009(m)
LAT: 36 57 32.58269 0.012(m) 36 57 32.60347 0.012(m)
E LON: 237 56 40.58644 0.015(m) 237 56 40.52480 0.015(m)
W LON: 122 3 19.41356 0.015(m) 122 3 19.47520 0.015(m)
EL HGT: 2.004(m) 0.024(m) 1.445(m) 0.024(m)
ORTHO HGT: 35.509(m) 0.108(m) [NAVD88 (Computed using GEOID03)]
UTM COORDINATES STATE PLANE COORDINATES
UTM (Zone 10) SPC (0403 CA 3)
Northing (Y) [meters] 4090746.559 552097.726
Easting (X) [meters] 584093.562 1861480.747
Convergence [degrees] 0.56797286 -0.95226122
Point Scale 0.99968712 1.00002398
Combined Factor 0.99968680 1.00002366
US NATIONAL GRID DESIGNATOR: 10SEF8409490747(NAD 83)
BASE STATIONS USED
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DI0900 PPT6 PIGEON POINT 6 CORS ARP N371112.565 W1222323.161 39027.3
DI7526 P210 ELKHRNSLGHCN2005 CORS ARP N364858.073 W1214354.570 32916.7
DH7211 P242 FRAZIERAIRCN2004 CORS ARP N365714.135 W1212747.401 52748.0
NEAREST NGS PUBLISHED CONTROL POINT
GU1960 X 1237 N365740. W1220324. 255.8
This position and the above vector components were computed without any
knowledge by the National Geodetic Survey regarding the equipment or
field operating procedures used.
-----------------------------------------------------------------------------
FILE: 01932191.09o 000091981
1008 NOTE: Antenna offsets supplied by the user were zero. Coordinates
1008 returned will be for the antenna reference point (ARP).
1008
NGS OPUS SOLUTION REPORT
========================
All computed coordinate accuracies are listed as peak-to-peak values.
For additional information: www.ngs.noaa.gov/OPUS/Using_OPUS.html#accuracy
USER: jlogan@usgs.gov DATE: August 10, 2009
RINEX FILE: 0193219v.09o TIME: 21:56:35 UTC
SOFTWARE: page5 0903.24 master.pl 0810233 START: 2009/08/07 21:10:00
EPHEMERIS: igr15435.eph [rapid] STOP: 2009/08/08 06:10:00
NAV FILE: brdc2190.09n OBS USED: 21686 / 22129 : 98%
ANT NAME: TRM55971.00 NONE # FIXED AMB: 77 / 97 : 79%
ARP HEIGHT: 0.0 OVERALL RMS: 0.019(m)
REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) ITRF00 (EPOCH:2009.6002)
X: -2708216.399(m) 0.012(m) -2708217.250(m) 0.012(m)
Y: -4324742.797(m) 0.039(m) -4324741.283(m) 0.039(m)
Z: 3813764.038(m) 0.009(m) 3813764.214(m) 0.009(m)
LAT: 36 57 32.58282 0.016(m) 36 57 32.60360 0.016(m)
E LON: 237 56 40.58629 0.021(m) 237 56 40.52465 0.021(m)
W LON: 122 3 19.41371 0.021(m) 122 3 19.47535 0.021(m)
EL HGT: 1.995(m) 0.035(m) 1.436(m) 0.035(m)
ORTHO HGT: 35.500(m) 0.111(m) [NAVD88 (Computed using GEOID03)]
UTM COORDINATES STATE PLANE COORDINATES
UTM (Zone 10) SPC (0403 CA 3)
Northing (Y) [meters] 4090746.563 552097.731
Easting (X) [meters] 584093.558 1861480.743
Convergence [degrees] 0.56797284 -0.95226124
Point Scale 0.99968712 1.00002398
Combined Factor 0.99968680 1.00002367
US NATIONAL GRID DESIGNATOR: 10SEF8409490747(NAD 83)
BASE STATIONS USED
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DI0900 PPT6 PIGEON POINT 6 CORS ARP N371112.565 W1222323.161 39027.3
DI7526 P210 ELKHRNSLGHCN2005 CORS ARP N364858.073 W1214354.570 32916.7
DH7211 P242 FRAZIERAIRCN2004 CORS ARP N365714.135 W1212747.401 52748.0
NEAREST NGS PUBLISHED CONTROL POINT
GU1960 X 1237 N365740. W1220324. 255.8
This position and the above vector components were computed without any
knowledge by the National Geodetic Survey regarding the equipment or
field operating procedures used.
-----------------------------------------------------------------------------
FILE: 01932200.09o 000091983
1008 NOTE: Antenna offsets supplied by the user were zero. Coordinates
1008 returned will be for the antenna reference point (ARP).
1008
NGS OPUS SOLUTION REPORT
========================
All computed coordinate accuracies are listed as peak-to-peak values.
For additional information: www.ngs.noaa.gov/OPUS/Using_OPUS.html#accuracy
USER: jlogan@usgs.gov DATE: August 10, 2009
RINEX FILE: 0193220v.09o TIME: 22:00:14 UTC
SOFTWARE: page5 0903.24 master10.pl 081023 START: 2009/08/08 21:10:00
EPHEMERIS: igr15436.eph [rapid] STOP: 2009/08/09 06:10:00
NAV FILE: brdc2200.09n OBS USED: 21541 / 22108 : 97%
ANT NAME: TRM55971.00 NONE # FIXED AMB: 88 / 104 : 85%
ARP HEIGHT: 0.0 OVERALL RMS: 0.020(m)
REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) ITRF00 (EPOCH:2009.6029)
X: -2708216.391(m) 0.037(m) -2708217.242(m) 0.037(m)
Y: -4324742.789(m) 0.060(m) -4324741.275(m) 0.060(m)
Z: 3813764.035(m) 0.012(m) 3813764.211(m) 0.012(m)
LAT: 36 57 32.58296 0.028(m) 36 57 32.60374 0.028(m)
E LON: 237 56 40.58639 0.063(m) 237 56 40.52476 0.063(m)
W LON: 122 3 19.41361 0.063(m) 122 3 19.47524 0.063(m)
EL HGT: 1.984(m) 0.018(m) 1.426(m) 0.018(m)
ORTHO HGT: 35.489(m) 0.106(m) [NAVD88 (Computed using GEOID03)]
UTM COORDINATES STATE PLANE COORDINATES
UTM (Zone 10) SPC (0403 CA 3)
Northing (Y) [meters] 4090746.567 552097.735
Easting (X) [meters] 584093.560 1861480.746
Convergence [degrees] 0.56797285 -0.95226122
Point Scale 0.99968712 1.00002398
Combined Factor 0.99968681 1.00002367
US NATIONAL GRID DESIGNATOR: 10SEF8409490747(NAD 83)
BASE STATIONS USED
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DI0900 PPT6 PIGEON POINT 6 CORS ARP N371112.565 W1222323.161 39027.3
DI7526 P210 ELKHRNSLGHCN2005 CORS ARP N364858.073 W1214354.570 32916.7
DH7211 P242 FRAZIERAIRCN2004 CORS ARP N365714.135 W1212747.401 52747.9
NEAREST NGS PUBLISHED CONTROL POINT
GU1960 X 1237 N365740. W1220324. 255.8
This position and the above vector components were computed without any
knowledge by the National Geodetic Survey regarding the equipment or
field operating procedures used.
-----------------------------------------------------------------------------
FILE: 01932210.09o 000092553
1008 NOTE: Antenna offsets supplied by the user were zero. Coordinates
1008 returned will be for the antenna reference point (ARP).
1008
NGS OPUS SOLUTION REPORT
========================
All computed coordinate accuracies are listed as peak-to-peak values.
For additional information: www.ngs.noaa.gov/OPUS/Using_OPUS.html#accuracy
USER: jlogan@usgs.gov DATE: August 11, 2009
RINEX FILE: 0193221v.09o TIME: 18:14:25 UTC
SOFTWARE: page5 0903.24 master.pl 0810233 START: 2009/08/09 21:10:00
EPHEMERIS: igr15440.eph [rapid] STOP: 2009/08/10 06:10:00
NAV FILE: brdc2210.09n OBS USED: 21622 / 22030 : 98%
ANT NAME: TRM55971.00 NONE # FIXED AMB: 91 / 102 : 89%
ARP HEIGHT: 0.0 OVERALL RMS: 0.019(m)
REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) ITRF00 (EPOCH:2009.6057)
X: -2708216.392(m) 0.015(m) -2708217.243(m) 0.015(m)
Y: -4324742.802(m) 0.009(m) -4324741.288(m) 0.009(m)
Z: 3813764.035(m) 0.008(m) 3813764.211(m) 0.008(m)
LAT: 36 57 32.58273 0.004(m) 36 57 32.60351 0.004(m)
E LON: 237 56 40.58664 0.016(m) 237 56 40.52500 0.016(m)
W LON: 122 3 19.41336 0.016(m) 122 3 19.47500 0.016(m)
EL HGT: 1.993(m) 0.012(m) 1.435(m) 0.012(m)
ORTHO HGT: 35.498(m) 0.105(m) [NAVD88 (Computed using GEOID03)]
UTM COORDINATES STATE PLANE COORDINATES
UTM (Zone 10) SPC (0403 CA 3)
Northing (Y) [meters] 4090746.560 552097.728
Easting (X) [meters] 584093.567 1861480.752
Convergence [degrees] 0.56797289 -0.95226118
Point Scale 0.99968712 1.00002398
Combined Factor 0.99968680 1.00002367
US NATIONAL GRID DESIGNATOR: 10SEF8409490747(NAD 83)
BASE STATIONS USED
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DI0898 PPT5 PIGEON POINT 5 CORS ARP N371113.488 W1222323.770 39057.2
DI7526 P210 ELKHRNSLGHCN2005 CORS ARP N364858.073 W1214354.570 32916.7
DH7211 P242 FRAZIERAIRCN2004 CORS ARP N365714.135 W1212747.401 52748.0
NEAREST NGS PUBLISHED CONTROL POINT
GU1960 X 1237 N365740. W1220324. 255.8
This position and the above vector components were computed without any
knowledge by the National Geodetic Survey regarding the equipment or
field operating procedures used.
Appendix B.3: Base Station WRIG OPUS Position Averages
| WRIG Position Data from OPUS Solutions |
| |
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|
| UTC Date |
UTC Time |
Overall |
Latitude |
Longitude |
Heights |
| Date |
JD |
Epoch |
Start |
End |
Duration |
RMS |
DD |
MM |
SS.sssss |
RMS |
DDD |
MM |
SS.sssss |
RMS |
Ellip. |
RMS |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 08/07/2009 |
2009-219 |
2009.5983 |
8/7/09 1:16 |
8/7/09 17:22 |
16:06:00 |
0.018 |
36 |
57 |
32.60347 |
0.012 |
-122 |
3 |
19.47520 |
0.015 |
1.445 |
0.024 |
| 08/08/2009 |
2009-220 |
2009.6002 |
8/7/09 21:10 |
8/8/09 6:10 |
09:00:00 |
0.019 |
36 |
57 |
32.60360 |
0.016 |
-122 |
3 |
19.47535 |
0.021 |
1.436 |
0.035 |
| 08/09/2009 |
2009-221 |
2009.6029 |
8/8/09 21:10 |
8/9/09 6:10 |
09:00:00 |
0.020 |
36 |
57 |
32.60374 |
0.028 |
-122 |
3 |
19.47524 |
0.063 |
1.426 |
0.018 |
| 08/10/2009 |
2009-222 |
2009.6057 |
8/9/09 21:10 |
8/10/09 6:10 |
09:00:00 |
0.019 |
36 |
57 |
32.60351 |
0.016 |
-122 |
3 |
19.47500 |
0.016 |
1.435 |
0.012 |
|
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|
|
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|
|
|
|
|
|
|
Maximum Value |
0.020 |
36 |
57 |
32.60374 |
0.028 |
-122 |
3 |
19.47535 |
0.063 |
1.445 |
0.035 |
|
|
|
|
Minimum Value |
0.018 |
36 |
57 |
32.60347 |
0.012 |
-122 |
3 |
19.47500 |
0.015 |
1.426 |
0.012 |
|
|
|
|
Spread of Values |
0.002 |
0 |
0 |
0.00027 |
0.016 |
0 |
0 |
0.00035 |
0.048 |
0.019 |
0.023 |
|
|
|
|
Average Value |
0.019 |
36 |
57 |
32.60358 |
0.018 |
-122 |
3 |
19.47520 |
0.029 |
1.436 |
0.022 |
Appendix B.4: Base Station WRIG HTDP Transformation Output
HTDP (version 3.0) OUTPUT
UPDATED POSITIONS IN WGS_84(G1150)
FROM 8-08-2009 TO 1-01-2002 (month-day-year)
OLD COORDINATE NEW COORDINATE VELOCITY DISPLACEMENT
WRIG
LATITUDE 36 57 32.60358 N 36 57 32.59811 N 22.29 mm/yr -0.169 m north
LONGITUDE 122 03 19.47520 W 122 03 19.46333 W -38.61 mm/yr 0.294 m east
ELLIP. HT. 1.436 1.440 -0.56 mm/yr 0.004 m up
X -2708217.247 -2708217.054 -25.37 mm/yr 0.193 m
Y -4324741.285 -4324741.530 32.23 mm/yr -0.245 m
Z 3813764.213 3813764.081 17.48 mm/yr -0.132 m
Appendix C: ESRI ASCII Grid format
To import ASCII Grids into common GIS packages:
- ArcGIS: Use ArcTools's Import ASCII to GRID
function
- ArcView: Use the import ASCII Grid function (May need
Spatial Analyst)
- GRASS: Use the 'r.in.arc' function.
The ASCII file consists of header information containing
a set of keywords, followed by cell values in row-major
order. The file format is:
- <NCOLS 514>
- <NROWS 514>
- <XLLCENTER 514 | XLLCORNER 514>
- <YLLCENTER 514 | YLLCORNER 514>
- <CELLSIZE 514>
- {NODATA_VALUE 514}
- row 1
- row 2
- .
- .
- .
- row n
where 514 is a number, and the keyword nodata_value is
optional and defaults to -9999. Row 1 of the data is at the
top of the grid, row 2 is just under row 1 and so on. The
nodata_value is the value in the ASCII file to be assigned
to those cells whose true value is unknown. In the grid
they will be assigned the keyword NODATA. Cell values are
be delimited by spaces. No carriage returns are necessary
at the end of each row in the grid (although they are
included in this case). The number of columns in the header
is used to determine when a new row begins. The number of
cell values is equal to the number of rows times the number
of columns.
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