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14065500
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20120412
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http://pubs.usgs.gov/of/2012/1003/data/shapefiles/asv_1000shot.zip
David C. Twichell
2012
ASV_1000SHOT_SORT.SHP: Point Shapefile of 1000 Interval Seismic Shotpoint Navigation for Autonomous Surface Vessel IRIS Chirp Seismic Data in Apalachicola Bay Collected on U.S. Geological Survey Cruise 06001 (Geographic, WGS84)
asv_1000shot_sort
vector digital data
VeeAnn A. Cross
V.A. CrossD.C. TwichellD.S. FosterT.F. O'Brien2012Apalachicola Bay Interpreted Seismic Horizons and Updated IRIS Chirp Seismic-Reflection Data1Open-File Report2012-1003Woods Hole Coastal and Marine Science Center, Woods Hole, MAU.S. Geological Survey, Coastal and Marine Geology Programhttp://pubs.usgs.gov/of/2012/1003/Open-File Report2012-1003Woods Hole Coastal and Marine Science Center, Woods Hole, MAU.S. Geological Survey, Coastal and Marine Geology Programhttp://pubs.usgs.gov/of/2012/1003/html/catalog.html
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000
en
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the combined product of modern estuarine conditions and the late Holocene evolution of the bay. A suite of geophysical data and cores were collected during a cooperative study by the U.S. Geological Survey, the National Oceanic and Atmospheric Administration Coastal Services Center, and the Apalachicola National Estuarine Research Reserve to refine the geology of the bay floor as well as the bay's Holocene stratigraphy. Sidescan-sonar imagery, bathymetry, high-resolution seismic profiles, and cores show that oyster reefs occupy the crests of sandy shoals that range from 1 to 7 kilometers in length, while most of the remainder of the bay floor is covered by mud. The sandy shoals are the surficial expression of broader sand deposits associated with deltas that advanced southward into the bay between 6,400 and 4,400 years before present. The seismic and core data indicate that the extent of oyster reefs was greatest between 2,400 and 1,200 years before present and has decreased since then due to the continued input of mud to the bay by the Apalachicola River. The association of oyster reefs with the middle to late Holocene sandy delta deposits indicates that the present distribution of oyster beds is controlled in part by the geologic evolution of the estuary. For more information on the surveys involved in this project, see http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2005-001-FA and http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2006-001-FA.
This shapefile contains the start and end shots, as well as every 1000th shot of the IRIS chirp data. These shot points aid the relation of the seismic-reflection profiles to other GIS data available in the same area.
ground condition
20060603
20060627
None planned
-85.062710
-84.809553
29.746692
29.618457
-85.062710
-84.809553
29.618457
29.746692
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Woods Hole Coastal and Marine Science Center
WHCMSC
Field Activity Serial Number 06001
Field Activity 2006-001-FA
Info Bank ID R-1-06-GM
navigation
seismic-reflection
shotpoint navigation
point shapefile
General
ASV IRIS
Autonomous Surface Vessel
Independently (or) Remotely Influenced Surveyor
chirp seismics
EdgeTech SB-424
oceans
oceans and estuaries
oceans and coastal
ISO 19115 Topic Category
location
Apalachicola Bay
Florida
Apalachicola National Estuarine Research Reserve
Gulf of Mexico
United States
St. Vincent Island
Little St. George Island
General
St. George Island
North America
None.
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the originators of this dataset.
Shapefile
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2251
(508) 457-2310
vatnipp@usgs.gov
D.C. TwichellB.D. AndrewsH.L. EdmistonW.R. Stevenson2007Geophysical mapping of oyster habitats in a shallow estuary; Apalachicola Bay, Florida 1Open-File Report2006-1381Woods Hole Science Center, Woods Hole, MAU.S. Geological Survey, Coastal and Marine Geology Programhttp://pubs.usgs.gov/of/2006/1381/D.C. TwichellE.A. PendletonR.Z. PooreL.E. OstermanK.W. Kelso2009Vibracore, radiocarbon, microfossil, and grain-size data from Apalachicola Bay, Florida1Open-File Report2009-1031Woods Hole Coastal and Marine Science Center, Woods Hole, MAU.S. Geological Survey, Coastal and Marine Geology Programhttp://pubs.usgs.gov/of/2009/1031/E. BergeronC.R. WorleyT.F. O'Brien2007Progress in the development of shallow-water mapping systems: using an autonomous surface vehicle for shallow-water geophysical studiesSea Technologyv. 48, no. 6, p. 10-15Arlington, VACompass Publications, Inc.
file://\\IGSAGIEGWSVCRX0\D$\iomega\Projects\apalach_asvarchive\finalpub_epnedits\data\shapefiles\asv_1000shot_sort.shp
Local Area Network
002
0.084
Shapefile
Seismic shot points at a regular interval can be extracted from a calibrated polyline-m seismic trackline. To do this, within ArcMap 9.2 hatches were created from the layer properties of the calibrated polyline. For Hatch Class, set the hatch interval to 1. Select the "Hatch Placement" button and check to start hatching at a value other than the lowest measure - start hatching at 0. Hatch definition (1000) - place hatches every 1000 hatch intervals using a marker symbol. Add Hatch Definition - add end hatch definition. For HatchDef(End) set the hatch to a marker, tolerance 0, and lateral offset 0. For this work there seemed to be a problem with a couple of the lines in terms of generating the start hatch. I was unable to figure out the problem and will just have to copy over shot one from the point shapefile at the end of the procedure. The affected lines are: asv06_JD175000, asv06_JD176001, asv06_JD176003 and asv06_day165005. This process step as well as all subsequent process steps was performed by the same person - VeeAnn A. Cross.
2008
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2251
(508) 457-2310
vatnipp@usgs.gov
asv_lines_Calibrated.shp
graphic hatches
With all the hatches drawn, use the "convert hatches to graphics tool". This tool does not appear automatically and must manually be added to the toolbar. To do this, from the ArcMap (v. 9.2) menu Tools - Customize. Select the Commands tab. In the categories listing, scroll down to Linear Referencing and select "Convert Hatches to Graphics..." and drag and drop to an existing toolbar in ArcMap. Then click on this button. In the pop-up menu, select All feature in the layer, select the appropriate Hatch Class. Leave the default to draw only the converted graphics.
2008
Then within ArcMap 9.2 use XTools Pro version 5.2 to convert the graphics to a shapefile. Feature conversions - Graphics to Shapes. Output: asv_1000shot_gra and automatically add feature class to current map. Do not add ID field and do not add TEXT field.
2008
Within ArcMap 9.2 - ArcToolbox - Linear Referencing - Locate Features Along Routes. Input features: asv_1000shot_gra; input route features: asv_lines_Calibrated; route identifier: lmarkname; search radius: 1 meter (a slight search radius is needed because of rounding errors, some points would be lost); output event table: asv_1000shot_gra_LocateFeatu.dbf; output route identifier: lmarkname; measure field: shot. Left rest of options at default.
2008
Within ArcMap 9.2 - ArcToolbox - Linear Referencing - Make Route Event Layer. Input route: asv_lines_Calibrated; route identifier: lmarkname; input event table: asv_1000shot_gra_LocateFeatu.dbf. For the event table properties, route identifier: lmarkname; event type: point; measure field: shot; left rest of options at default values. Then right mouse click on the event theme - data - export data. Export all the features to asv_1000shot.shp. At this point, copy the four missing shot #1's from allasv_nodupes_sort.shp into this shapefile from within editor.
2008
Within ArcMap 9.2 use VACExtras v 2.1 - VAC Extras - Feat Conv - Table Sort with the primary sort field lmarkname in ascending order and the secondary sort field is shot in ascending order. Output the result to asv_1000shot_sort.shp.
2009
Use XTools Pro v. 5.2 - XTools Pro - Table Operations - Add X, Y, Z coordinates. Add X coordinate with field name longitude and y coordinate with field name latitude. Then repeat the process specifying the output projection as UTM, Zone 16, WGS84 and add the X coordinate with field name easting and the Y coordinate with field name northing.
2009
Additionally, I want to carry over some of the other information from the original point shapefile such as year, jday, and filename. Add the field "year" and use field calculator to set all the record values to 2006. Add the additional fields "jday" and "filename". To populate these fields, join this point shapefile to the asv_lines shapefile based on the lmarkname attribute. Select to join attributes from a table, field to base the join on in both tables - lmarkname. With the tables joined, can use field calculator to copy over the appropriate values. Then deleted the unnecessary fields generated during the locate features procedure - distance and ID.
2009
The data were collected using the USGS WHCMSC Autonomous Surface Vessel (ASV) IRIS. This system is designed to operate in shallow water (1-5 meters). IRIS is a catamaran platform 3 meters in length, 1.2 meters in width, and approximately 118 kilograms. The vehicle is operated remotely through a wireless modem network enabling real-time monitoring of data acquisition. The system is navigated using a ZXW RTK augmented GPS system enclosed on a platform in the middle of the catamaran. An enclosed onboard micro-processor-based motor controller provides signals for speed and steering to hull-mounted brushless direct-current thrusters. A center-mounted keel encloses the chirp dual-frequency (100/400 kHz model 4200 EdgeTech) sidescan-sonar transducers and EdgeTech 424 chirp seismic-reflection hydrophones. Mounted in the port hull are the EdgeTech 424 chirp seismic-reflection transducer and a single-beam 235 kHz echosounder. A Sony IP based wireless video camera is installed on the mast of IRIS for the purpose of obstacle avoidance. An onboard Fluxgate magnetometer provides heading, heave, pitch, and roll. IRIS is powered by 2-4 24-volt NiMH batteries located in each hull and has an approximate run-time of five hours at 4 knots.
No data were acquired on the following dates: 6/8/2006, 6/10/2006 6/12/2006, 6/13/2006, 6/15/2006, 6/16/2006, 6/17/2006, 6/18/2006, 6/19/2006, 6/20/2006. These dates correspond to Julian days 159, 161, 163, 164, 166, 167, 168, 169, 170, and 171 respectively. In addition, lines for which no valid seismic data were available, or extremely short lines, were deleted. Some lines acquired seismic data, but little or no navigation. These lines are also excluded. One line was re-run, so the original problematic line was excluded. The list of collected seismic lines excluded from this and subsequent datasets is as follows: Julian day 155 - apalachicola000 (rerun), apalachicola020 (too short), apalachicola027 (insufficient navigation). Julian day 160 - day160001 (insufficient navigation). Julian day 165 - day165001 (too short). Julian day 172 - JD172010 (too short), JD172014 (too short), JD172025 (too short). Julian day 173 - JD173009 (too short). Julian day 174 - JD174010 (too short).
IRIS was navigated with a Real-Time Kinematic (RTK) GPS, with the GPS antenna mounted directly over the seismic transducer. This system can provide positions to within 0.1 meters. However, due to some errors with the acquisition software, this accuracy is reduced. The accuracy is approximately 2 m given the constraints of the acquisition system.
All of the data were handled in the same manner. All processed lines have a start shot, end shot, and every 1000th shot in between. Inconsistencies exist in the file naming convention for individual seismic data collection lines. Because the filenames reflect the original data file names acquired in the field, they were left alone.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000
asv_1000shot_sort
-85.06271
-84.809553
29.746692
29.618457
1
-85.06271
-84.809553
29.746692
29.618457
1
en
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2251
(508) 457-2310
vatnipp@usgs.gov
20120412
http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile
ISO 19115 Geographic Information - Metadata
DIS_ESRI1.0
dataset
Downloadable Data
0.161 MB
0.084
WinZip
9.0
This WinZip file contains the point shapefile as well as the associated metadata files.
http://pubs.usgs.gov/of/2012/1003/data/shapefiles/asv_1000shot.ziphttp://pubs.usgs.gov/of/2012/1003/html/catalog.html
None.
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.
This WinZip file contains data available in ESRI point shapefile format. The user must have software capable of uncompressing the WinZip file and reading/displaying the shapefile.
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2251
(508) 457-2310
vatnipp@usgs.gov
Vector
Simple
Point
FALSE
2449
FALSE
TRUE
Entity point
2449
GCS_WGS_1984
Decimal degrees
0.000001
0.000001
D_WGS_1984
WGS_1984
6378137.000000
298.257224
GCS_WGS_1984
2449
asv_1000shot_sort
Feature Class
2449
ESRI point shapefile
ESRI
FID
FID
OID
4
0
0
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
ESRI
Coordinates defining the features.
lmarkname
lmarkname
String
20
An abbreviated text field which provides a unique line name for each line of data acquisition associated with each point of data collection. The shorter name is easier to work with in the seismic interpretation software.
Character set.
shot
shot
Float
19
Seismic shot number corresponding to the navigation fix. These values represent the start and end of each seismic line, and every 1000 shot along a line.
Data processor.
1
39499
seismic shot
11
longitude
longitude
Float
19
Longitude coordinate of the point location in decimal degrees, WGS84. These values were calculated by XTools v. 5.2.
Data processor.
-85.06271
-84.809553
decimal degrees
11
latitude
latitude
Float
19
Latitude coordinate of the point location in decimal degrees, WGS84. These values were calculated by XTools v. 5.2.
Data processor.
29.618457
29.746692
decimal degrees
11
easting
easting
Float
19
Easting coordinate of the point based on UTM, Zone 16, WGS84 calculated by XTools v 5.2.
Data processor.
687471.298707
711847.647456
meters
11
northing
northing
Float
19
Northing coordinate of the point based on UTM, Zone 16, WGS84 calculated by XTools v 5.2.
Data processor.
3278111.42877
3292656.76413
meters
11
year
year
Number
4
Calendar year the data were collected.
Data processor.
2006
Year in which the data were collected.
Data processor.
jday
jday
Number
4
This number represents the Julian day of data collection based on UTC time. Julian day is the integer number representing the interval of time in days since January 1 of the year.
Data processor.
154
178
day
asv_name
asv_name
String
75
Text field with the original filename prepended by "asv06" to indicate the IRIS as the source of data collection.
Data processor.
Character set.
file_name
file_name
String
50
The original file name of the acquired seismic line, which also corresponds to the prefix of the JPEG image filename associated with the seismic line.
Data processor.
Character set.
20120412