Online Links:
Online Links:
Range of values | |
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Minimum: | -75.194617 |
Maximum: | -75.0748 |
Units: | decimal degrees |
Range of values | |
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Minimum: | 38.5708 |
Maximum: | 38.615317 |
Units: | decimal degrees |
Range of values | |
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Minimum: | 0.3 |
Maximum: | 9.5 |
Units: | meters |
Range of values | |
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Minimum: | 10 |
Maximum: | 17.9 |
Units: | degrees Celsius |
Range of values | |
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Minimum: | -75.192233 |
Maximum: | -75.074783 |
Units: | decimal degrees |
Range of values | |
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Minimum: | 38.5708 |
Maximum: | 38.615317 |
Units: | decimal degrees |
Range of values | |
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Minimum: | 0.3 |
Maximum: | 198.5 |
Units: | meters |
Range of values | |
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Minimum: | 0.000102 |
Maximum: | 414.482178 |
Units: | meters |
Range of values | |
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Minimum: | 0 |
Maximum: | 20 |
Units: | meters |
Range of values | |
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Minimum: | 0.39508 |
Maximum: | 8.288633 |
Units: | meters |
Range of values | |
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Minimum: | 104 |
Maximum: | 104 |
Units: | days |
Range of values | |
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Minimum: | 0.341818 |
Maximum: | 8.889661 |
Units: | meters |
Range of values | |
---|---|
Minimum: | 0.3 |
Maximum: | 9.5 |
Units: | meters |
This point shapefile has several purposes. First, this shapefile provides the ship's XY position during the collection of continuous resistivity profile data in the Indian River Bay on April 15, 2010. Additionally, attributes in this shapefile account for extensive processing to derive acceptable depth values (not tide corrected) at each CRP data acquisition point. These depths improve the processing of the CRP data. This shapefile also acts as an archive of this dataset.
BEGIN { FS = "," } { FS = "," ARGC = 2 depth = -9999 temp = -9999 if ($1=="$GPRMC") { utctime = $2 utcdate = $10 latdeg = substr($4,1,2) latmin = substr($4,3,6) declat = latdeg + (latmin/60) londeg = substr($6,1,3) lonmin = substr($6,4,6) declon = -1 * (londeg + (lonmin/60)) if (NR==1) { holddepth = -9999 holdtemp = -9999 } else { printf("%s, %s, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holdutcdate, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2]) } holdutctime = utctime holdutcdate = utcdate holddeclon = declon holddeclat = declat holddepth = -9999 holdtemp = -9999 } if ($1=="$SDDPT") { depthreal = $2 holddepth = depthreal } if ($1=="$SDMTW") { tempreal = $2 holdtemp = tempreal } } END { printf("%s, %s, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holdutcdate, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2]) }This AWK script was initialized by "dohold" - shell script run under CYGWIN (UNIX like environment that runs under Windows). This shell script reads all the files in a folder with the extension "gps" and processes them. This is the script used for the April 13 data collection:
files=`ls *.gps | cut -d. -f1 | tr "[A-Z"] ["a-z"]` for file in $files do awk -f awkhold $file.gps $file > $file.holds doneData sources used in this process:
cat l20f2.holds \ l21f1.holds \ l22f1.holds \ l23f1.holds \ l24f1.holds \ l25f1.holds \ l26f1.holds \ l26f2.holds \ l27f1.holds \ l28f1.holds \ l29f1.holds \ l30f1.holds \ l31f1.holds \ l32f1.holds \ l33f1.holds \ l35f1.holds \ l36f1.holds \ l37f2.holds \ l38f1.holds \ l39f1.holds \ l40f1.holds \ l41f1.holds \ l42f1.holds \ l43f1.holds \ l44f1.holds \ l45f1.holds \ l46f2.holds \ l47f1.holds \ l48f1.holds \ l49f1.holds \ l50f1.holds > jd105gps.csvData sources used in this process:
gpstime, gpsdate, longitude, latitude, depth_m, temp_c, lineThis text file was then imported to ArcMap 9.2 using Tools - AddXY Data. The X field is longitude; Y field is latitude, and the coordinate system was defined as Geographic, WGs84. This "Event Theme" was converted to a shapefile by right-mouse clicking on the layer - Data - Export Data. Data sources used in this process:
h_corrected_ir=htrack-tidetrack_ir; h_corrected_rd=htrack-tidetrack_rd; use: h_corrected_ir=htrack+tidetrack_ir; h_corrected_rd=htrack+tidetrack_rd;Data sources used in this process:
Query: "timediff" <= -41 AND "timediff" >= -50
These are all within 10 seconds, so set bestdepth = depth_m_1.
Likewise, the opposite situation needed to be handled such as gpstime = 131601 and gpstime_1 = 131554.
Query: "timediff" >= 41 AND "timediff" <= 50
And if there's an hour change:
"timediff" >=4041 AND "timediff" <=4050 (this didn't have any records) "timediff" >=-4050 AND "timediff" <=-4041 (this didn't have any records)
Now any records without a "bestdepth" ("bestdepth" = 0) the values from "addedtide" were copied over.
Are there legal restrictions on access or use of the data?Access_Constraints: None.
Use_Constraints:Not to be used for navigation. The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Neither the U.S. government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Data format: | This WinZip (v. 14) file contains the point shapefile as well as the associated metadata files. in format Shapefile (version ArcGIS 9.2) Size: 0.47 |
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Network links: |
https://pubs.usgs.gov/of/2011/1039/data/navigation/resistivity/jd105gps_bestdepth.zip https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html https://doi.org/10.3133/ofr20111039 |
This zip file contains data available in Esri point shapefile format. The user must have software capable of uncompressing the zip file and reading/displaying the shapefile.