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USGS CMG S-K1-99-CA Geodetics

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Arc Files:
none
Digital Data:
UTMs of Stations
s-k1-99-ca.utm
Metadata:
Notes
 SK199CA  Misc. Notes
   There appears to be a problem with the vertical control at this beach. The 
   standard deviation of the field-derived coordinate system is too high. I 
   suggest we look at the GPS data again to determine if a mistake has been 
   made.
      
Overview
Metropolitan Santa Cruz Beach Surveys
    Scott Creek Beach, Santa Cruz County, CA     11 January 1999, 0900 to1000 (PST)  
Synopsis   A beach and nearshore topographic survey consisting of one shore-normal   profile and one shore-parallel line (wet/dry line) was conducted. The   profile was extended offshore into the surf zone utilizing a swimming   rodman.  
Total Station Location
Geographic Coordinates (WGS84 Ellipsoid, NAD83 datum, NAVD88 Elevation
datum)
Latitude +37.03990 (N 37deg 02' 23.643190")
Longitude -122.22931 (W 122deg 13' 45.514361")
Elevation 5.600 m
UTM Coordinates (Zone 10N, WGS84 Ellipsoid, NAD83 datum, NAVD88
Elevation datum)
Northing 4099576.395 m
Easting 568537.730 m
Elevation 5.600 m
Surveying Conditions
Skies partly cloudy, low overcast
Temperature 58.6 deg F
Barometric Pressure 30.00 in HG
Wind < 5kts out of the west
Precipitation none
Sea State 4-5' breaking waves
Optical Siting good, no heat shimmer, a hazy (saltation) condition
on distant wet/dry shots
Geodetics Equipment
Geodimeter 640 Total Station

Autolock and Robotic capabilities

Internal memory only

SCRUZ.ARE file resident in memory

Instrument Height meter

Wild tripod (wood)

12-volt gel cell battery

Stadia rods:

SECO RWLR-4, w/EXTR (combined height: 1.572 m)

SECO BWLR-4, w/EXTB (combined height: 1.573 m)

Mound City EXP3, w/hydro (combined heights: 1.701 m, 3.096 m, and 4.545 m)

Seco Level Rod support tripods (two)

Kodak DC120 Digital Camera
Field Procedure   Two highway signs delineate the profile at Scott Creek. The total station   was set up just south of the profile. The SECO level rods, in conjunction   with the level-rod support tripods were placed on the control points and   pointed towards the total station.
 
  Program 10 (site setup) was performed on the total station
 
  Program 20 (station establishment) was performed on the total station   using option "Unknown Station Location"
 
  Control Points: 10101, 10104, 10102, and 10103 were surveyed (Fast   Standard mode)
 
  Profile was surveyed using the EXP3 stadia rod (Tracking mode)
 
  The Wet/Dry line was surveyed using the EXP3 stadia rod (Tracking mode)
 
  Gretchen Luepke sketched the beach.
 
  Thomas E. Reiss photographed the area.
 
Field Observations   Scott Creek continues to flow into the ocean to the north. Beach cusps   evident. Surf conditions too rough to go very far offshore.  
Post-processing   Survey data was downloaded from the Total Station memory (JOB file is   automatically is created).
 
  Raw file is used to generate a PTS file (UTM coordinates are extracted   from the original file) Note: no recalculation is performed on the   original file)
 
  PFCODE.EXE is used to generate an ED file
 
  The ED file is edited to include necessary Program 10 information, Points   block listing, and necessary INFO codes. Field procedures are checked and   corrected if necessary
 
  PFGD.EXE is used to generate a Cartesian-based, XYZ file (PF) from the ED file
 
  Extraneous lines are removed from the PF file to generate a DAT file   (relative XYZ coordinates)
 
  Data values from the DAT file were put into GRIDCON.XLS (SCOTT.XLS, sheet   990111A) to convert the relative XYZ Cartesian system to UTM.
 
  UTM values were compared to field observations (PTS file) to check for   discrepancies.
 
  UTM data is plotted in plan and profile views using SigmaPlot (v. 4.0)
 
  Digital images were inserted into a MS WORD document and described   (IMAGE.TXT file)
 
Precision and Accuracy of Acquired Data
Program 20 (Station Establishment)
Standard Deviation (Northing) 0.026 m
Standard Deviation (Easting) 0.022 m
Standard Deviation (Combined) 0.034 m
Standard Deviation (Elevation) 0.146 m
Siting on Control Points (distance dependent, based on spread of
values)
Horizontal < 0.003 m
Vertical < 0.004 m
Siting on topo points (distance dependent, extension dependent,
hand-held stadia)
Horizontal ~ 0.1 m
Vertical ~ 0.02 m
Generated Files
990111A.RAW Original data file from the Geodimeter
(linear format of polar coordinate data)
990111A.JOB Geotools generated observation file
(similar in format to the RAW file)
990111A.PTS Geotools extracted listing of field
observed UTM coordinates (from RAW file)
990111A.ED PFCODE.EXE generated file (tabular format
of polar coordinate data, from JOB file)
990111A.PF PFGD.EXE output file (from ED file)
990111A.DAT XYZ data, relative grid (Geodimeter as
origin)
990111A.UTM Excel algorithm generated UTM coordinates
990111A.JNB SigmaPlot (v. 4.0) graphics file showing
plan and profile views of UTM data
990111A.DOC This document file (MS WORD file)
990111A.TXT This document in ASCII format
99011101.KDC to 99011105.KDC digital images, Kodak format
99011101.JPG to 99011105.JPG digital images, JPEG format (see attached
descriptions)
990111A1.DOC Digital image file
IMAGE.TXT Descriptions of digital images taken on
this day
990111_LOG.XLS, sheet 990111A Excel sheet detailing survey operations
SCOTT.XLS, sheet 990111A Excel sheet of relative to UTM data
conversion
Images Taken
The following images were taken with a Kodak DC120 Digital
camera.
99011101 Gretchen Luepke standing near the Geodimeter 640. View
looking east. The Profile is determined by the line-up of the
two highway signs shown in the background
99011102 View from the berm crest, online, looking north.
99011103 View from the berm crest, on line, looking south.
99011104 View looking north along Highway 1. The profile extends from
the two highway signs on either side of the Highway. Two control
points are situated "on-line" near each sign.
99011105 View from the highway, looking north. Scott Creek is shown
in the background. The profile extends along the south end of the
bridge, seaward.
No analog holdings.

         
Type Webpage KMZ Arc         Metadata        
Total station data      
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Times   060.times    

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