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Arc Files:
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Digital Data:
Relative Reference Frame c-p1-99-ca.990113c.pf
Geodetic Points c-p1-99-ca.990113c.pts
Metadata:
Notes
 CP199CA  Misc. Notes
   There appears to be a slight problem with the horizontal control for this 
   beach. The observed coordinates generated by the Geodimeter following 
   Program 20 are slightly high compared to the spread of the surveyed 
   Control Points. I suggest we take a closer look at the GPS data to 
   see if there was a problem. Control Point 11203 is no longer in 
   existence; an El Nino storm took it away. The numbering 
   convention for the shore-normal lines was continued 
   from previous surveys.       
      
Overview
CP199CA Metropolitan Santa Cruz Beach Surveys
    Capitola Beach, Capitola, CA     13 January 1999, 1130 to1230 (PST)
Synopsis   A beach and nearshore topographic survey consisting of three shore-normal   profiles and one shore-parallel line (wet/dry line) was conducted. The   profiles were extended offshore into the surf zone utilizing a   swimming rodman.
Total Station Location
Geographic Coordinates (WGS84 Ellipsoid, NAD83 datum, NAVD88 Elevation
datum)
Latitude +36.96971 (N 36deg 58m 10.943961s)
Longitude -121.95564 (W 121deg 57m 20.298830s)
Elevation 20.125 m
UTM Coordinates (Zone 10N, WGS84 Ellipsoid, NAD83 datum, NAVD88
Elevation datum)
Northing 4092021.390 m
Easting 592961.462 m
Elevation 20.125 m
Surveying Conditions
Skies clear, low stratus on the horizon
Temperature 71.2 deg F
Barometric Pressure 30.00 in HG
Wind ~ 5 kts out of the west
Precipitation none
Sea State 1-2' breaking waves
Optical Siting good, no heat shimmer
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)

Standard UHF Radios (two)

Kodak DC120 Digital Camera
Field Procedure   The total station was set up on Control Point 11201  "GL SETUP". This location, although very distant from the  beach, has a commanding view of the entire beach and  nearshore region. The HA reference was set to 000d  relative to Control Point 11205 "Esplanade".  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 "Known Station Location",  utilizing Control Point 11201 as the station location and  Control Point 11205 as the known reference object.
 
  Program 4 (UTM) was used to collect control and topo points
 
  Control Points: 11205, 11202, and 11204 were surveyed (Fast Standard mode)   The Profile SN2 was surveyed using the EXP3 stadia rod  (Tracking mode) and carried offshore into the surf zone.  Due to the gently sloping nature of the offshore bathymetry,  the profile was terminated at the intermediate maximum limit  of the EXP3 stadia rod.   The Wet/Dry line was surveyed using the EXP3 stadia rod (Tracking mode)
 
  The Profiles SN1A and SN1 were surveyed using the EXP3  stadia rod (Tracking mode) and carried offshore into the surf  zone. Due to the gently sloping nature of the offshore  bathymetry, the profile was terminated at the intermediate  maximum limit of the EXP3 stadia rod.
 
  Gretchen Luepke sketched the beach and assisted with the control points.   Thomas E. Reiss took written notes and photographed the area.   Kristin M. Brown operated the total station.   Justin Friesner was the rodman.
Field Observations   This beach is bordered on the west by natural rock cliffs with   shore-protective rip-rap rocks at their base. The Esplanade   backs the beach to the north. Rip-rap and a seawall define   the east end of the beach. The Capitola Pier is also a   prominent feature, cutting the beach into roughly 1/4   - 3/4 segments. A stream (river) runs through the   town, cuts across the beach and empties into the   ocean. This stream plays a major role in   defining the beach and nearshore   morphology. During periods of   heavy winter rain storms,   debris and sediment   carried down by the   river will create a   delta in the   nearshore region. No indication of a delta was evident today.
Post-processing   Survey data was downloaded from the Total Station memory, automatically   creating a RAW file and an associated JOB file.
 
  The RAW file was used to generate a PTS file (UTM field coordinates are   extracted from the RAW file) Note: no recalculation was performed on   the original file).
 
  PFCODE.EXE was used on the JOB file to generate an ED file.
 
  The ED file was edited to include necessary Program 10 information, POINTS   block listing, and INFO codes. Field procedures were checked and corrected   as necessary.
 
  PFGD.EXE was used on the ED file to generate a PF file (Cartesian-based,   relative XYZ coordinates).
 
  Extraneous comment lines were removed from the PF file to generate a DAT   file (relative XYZ coordinates).
 
  Data values from the DAT file were put into GRIDCON.XLS (CAPITOLA.XLS,   sheet 990113C) to convert the relative XYZ data (Cartesian system) to UTM.
 
  UTM values were extracted from CAPITOLA.XLS (UTM file) and compared to   field observations (PTS file) to check for discrepancies.
 
  UTM data was plotted in plan and profile views using SigmaPlot (v. 4.0).
 
  Digital images were inserted into an MS WORD document (990113C1.DOC,   990113C2.DOC and 990113C3.DOC) and summarily described (IMAGE.TXT file).
Precision and Accuracy of Acquired Data
Program 20 (Station Establishment)
Northing: 0.001 m
Easting: 0.001 m
Combined: 0.001 m
Elevation: 0.001 m
Siting on Control Points: (distance dependent, based on spread of values)
Horizontal: < 0.018 m
Vertical: < 0.020 m
Observed Accuracy of Control Points: (field observations as compared to GPS derived positions)
Northing: < 0.082 m
Easting: < 0.124 m
Elevation: < 0.025 m
Siting on topo points: (distance dependent, extension dependent, hand-held stadia)
Horizontal: ~ 0.2 m
Vertical: ~ 0.04 m
Generated Files
990113C.RAW Original data file from the Geodimeter
(linear format of polar coordinate data)
990113C.JOB Geotools generated observation file
(similar in format to the RAW file)
990113C.PTS Geotools extracted listing of field
observed UTM coordinates (from RAW file)
990113C.ED PFCODE.EXE generated file (tabular format
of polar coordinate data, from JOB file)
990113C.PF PFGD.EXE output file (from ED file)
990113C.DAT XYZ data, relative grid (Geodimeter as
origin)
990113C.UTM Excel algorithm generated UTM coordinates
990113C.JNB SigmaPlot (v. 4.0) graphics file showing
plan and profile views of UTM data
990113C.DOC This document file (MS WORD file)
990113C.TXT This document in ASCII format
99011325.KDC to 99011342.KDC digital images, Kodak format
99011325.JPG to 99011342.JPG digital images, JPEG format (see attached
descriptions)
990113C1.DOC, 990113C2.DOC, and 990113C2.DOC Digital image files (JPEG images with
descriptions)
IMAGE.TXT Descriptions of digital images taken on
this day
990113_LOG.XLS, sheet 990113C Excel sheet detailing survey operations
CAPITOLA.XLS, sheet 990113C Excel sheet of relative coordinates to UTM
data conversion
Images Taken
e following images were taken with a Kodak DC120 Digital camera.
99011325: View from Control Point SCRUZ.ARE/11201
L Set-up", looking northeast towards the town of Capitola.
99011326: View from Control Point SCRUZ.ARE/11201
L Set-up", looking northeast towards the town of Capitola.
me image as 99011325, however taken with a lighter exposure.
99011327: Close-up view of the east side of Capitola Beach,
ken from Control Point SCRUZ.ARE/11201 "GL Set-up", looking
st-northeast. The Capitola pier is seen in the foreground.
99011328: Close-up view of Capitola Beach, taken from
ntrol Point SCRUZ.ARE/11201 "GL Set-up", looking
rth-northeast. The base of the Capitola pier is seen in the
reground.
99011329: Close-up view of the cliff that backs Capitola
ach on the west end. Image taken from Control Point
RUZ.ARE/11201 "GL Set-up", looking north.
99011330 (011330r): Kristin M. Brown (UCSC graduate student) operating the Geodimeter 640 at Capitola Beach.
e total station is typically set up over Control Point SCRUZ.ARE/11201 "GL Set-up".
99011331: Kristin M. Brown (UCSC graduate student) conversing with an interested onlooker. Image taken at Control Point SCRUZ.ARE/11201 "GL Set-up", looking east-northeast.
99011332 (011332r): BWLR-4, w/EXTB set up on Control Point SCRUZ.ARE/11202 "Cliff". View looking northeast.
99011333: Close-up view of Control Point SCRUZ.ARE/11202 "Cliff". The control point is a survey nail pounded into an asphalt curb.
99011334 (011334r): BWLR-4, w/EXTB set up on Control Point SCRUZ.ARE/11202 "Cliff". View looking northeast.
99011335: RWLR-4, w/EXTR set up on Control Point SCRUZ.ARE/11204 "On Line". G
tchen Luepke, Thomas E. Reiss, and Justin Friesner seen sitting on the Esplanade wall. View looking south.
99011336: RWLR-4, w/EXTR set up on Control Point SCRUZ.ARE/11204 "On Line". Gretchen Luepke, Thomas E. Reiss, and Justin Friesner seen sitting on the Esplanade wall.
99011337: Close-up view of Control Point SCRUZ.ARE/11204 "On Line". This control point is a brass
nument cemented into a drill-hole, mounted flush with the concrete surface.
99011338 (011338r): RWLR-4, w/EXTR set up on Control Point SCRUZ.ARE/11204 "On Line". View looking north. Note the street intersection in the background.
99011339 (011339r): View of Capitola Beach, looking south from the Esplanade. The river that cuts across the beach can be seen in the middle of the image.
99011340: View of Capitola Beach, looking west from the berm crest.
e river that cuts across the beach can be seen in the middle of the image and the Capitola Pier in the background.
99011341: View of Capitola Beach, looking west from mid-backbeach.
e river that cuts across the beach can be seen in the middle of the image and the Capitola Pier in the background.
99011342: View of Capitola Beach, looking east from mid-backbeach.
e river that cuts across the beach can be seen in the middle of the image. A 1.5-m river-cut scarp backs the east end of the beach.
No analog holdings.

         
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Page Last Modified: Tue Oct 29 08:08:47 PDT 2013  (chd)