Data Series 1044
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Navigation DataNavigation files were extracted as a comma-delimited American Standard Code for Information Interchange (ASCII) text file from Fugawi Marine ENC Ver. 4 GPS Navigation Software. A Garmin GPS 18 PC sensor was used during the flight. Fugawi recorded the following: latitude, longitude, Universal Transverse Mercator (UTM) easting, UTM northing, UTM zone, altitude, local date, UTC date, local time, UTC time, speed, leg bearing, true/magnetic indicator, leg distance, total distance, and the sequence number once per second. Images were acquired using a Nikon D1X camera. The camera's internal clock was synchronized to UTC. Latitude and longitude were recorded in the Exchangeable Image File (EXIF) header of each image along with the time the images was taken. Image files were named according to the time they were captured. The image filenames have the format yyyy_mmdd_hhmmssd.jpg. For example, image 2011_0609_133636d.jpg was taken June 09, 2011, at 13:36:36 UTC, and "d" indicates that a digital camera was used. Images are associated with GPS positions according to the time of capture, with verification provided by the information stored in the EXIF header. Processed NavigationThe processed navigation file can be accessed from within the nav folder or by clicking the following link to the comma-separated value (CSV) file: ds1044_11CCH02.csv. The file contains 12 fields that are defined as follows: Field 1: LONGITUDE: estimated longitude (decimal degree, position of aircraft)Field 2: LATITUDE: estimated latitude (decimal degree, position of aircraft) Field 3: HR_MIN_SEC: hour_minute_second (UTC) Field 4: IMAGE: image filename (yyyy_mmdd_hhmmssd.jpg) Field 5: IMAGE_URL: location of the image internal to the data series Field 6: CONTACTSHEET_URL: location of the contact sheet within the data series report Field 7: YEAR: year the photograph was taken Field 8: MONTH: month the photograph was taken Field 9: DAY: day the photograph was taken Field 10: PRE_POST: type of survey conducted (pre- or post-storm) Field 11: STORM: baseline or name of the storm Field 12: GEO_AREA: locations surveyed Raw NavigationNavigation files were extracted as a comma-delimited American Standard Code for Information Interchange (ASCII) text file from Fugawi Marine ENC Ver. 4 GPS Navigation Software. A Garmin GPS 18 PC sensor was used during the flight. Fugawi recorded the following: latitude, longitude, UTM easting, UTM northing, UTM zone, altitude, local date, UTC date, local time, UTC time, speed, leg bearing, true/magnetic indicator, leg distance, total distance, and sequence number once per second. The raw navigation files can be accessed from within the nav folder or by clicking the following link to the text (TXT) file: ds1044_11CCH02_0609_garmin18p.txt. The file contains 16 fields (separated by spaces) that are defined as follows:
Field 1: LATITUDE: latitude (decimal degree, position of aircraft) |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://pubsdata.usgs.gov/pubs/ds/1044/html/ds1044_nav.html
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Tuesday, 28-Mar-2017 15:16:58 EDT
