Online Links:
Online Links:
| Range of values | |
|---|---|
| Minimum: | -73.731583 |
| Maximum: | -73.700467 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | 40.7963 |
| Maximum: | 40.839067 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | 0.2 |
| Maximum: | 14.9 |
| Units: | meters |
| Range of values | |
|---|---|
| Minimum: | 13.8 |
| Maximum: | 18.1 |
| Units: | degrees Celsius |
| Range of values | |
|---|---|
| Minimum: | 136 |
| Maximum: | 138 |
| Units: | day |
AWK script "awkhold":
BEGIN {
FS = ","
}
{
FS = ","
ARGC = 2
depth = -9999
temp = -9999
if ($1=="$GPRMC")
{
utctime = $2
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, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2])
}
holdutctime = utctime
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, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2])
}
This AWK script was initialized by "dogps" - shell script run under CYGWIN v. 1.5.1 (UNIX like environment that runs under Windows). This is the script used for the May 15 data collection:
files=`ls *.gps | cut -d. -f1` for file in $files do awk -f awkhold $file.gps $file >> day4gps_mod.txt doneThe script not only parses the GPS navigation, but concatenates the results into a single file. This script was repeated for day 5 and day 6 (May 16 and May 17 respectively) with the output directed to day5gps.txt and day6gps.txt. Day 4 required the "mod" modifier due to some bad bathymetry values that needed to be edited prior to processing. The two files requiring this modificaiton were L54F2 and L55F1. These had anomalously deep values in areas of very shallow water. So the deep values were replaced with values more indicative of the area. No data values were modified.
| Access_Constraints | None. |
|---|---|
| Use_Constraints | 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. |
| Data format: | This WinZip file contains the point shapefile as well as the associated metadata files. in format Shapefile (version ArcGIS 9.2) Size: 1 |
|---|---|
| Network links: |
https://pubs.usgs.gov/of/2011/1041/data/navigation/resgpspnts_manhasset.zip https://pubs.usgs.gov/of/2011/1041/html/catalog.html |
| Media you can order: | CD-ROM (Density 640 MB) (format ISO9660) |