NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) 2007 vector digital data http://pubs.usgs.gov/of/2007/1169 Tidal zonation polygons generated by NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) division in Silver Spring, MD for the 2005 South San Francisco Bay bathymetric survey. Zones contain unique range and time correctors based upon specific tide gauges for referencing soundings to MLLW. Zones also contain values for converting bathymetric data between MLLW and NAVD88. Zones 51 and higher do not contain a conversion from MLLW to NAVD88 although it is estimated the conversion would be in the range of 1.8 to 2 feet (55-61 cm). Conversion values are given in both feet and centimeters. To convert from NAVD88 to MLLW add the MLLW2NAVD_CM attribute values to NAVD88 values in cm. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. 2007 publication date Complete None planned -122.413830 -121.935012 37.725492 37.418448 None Marine Geology Bathymetry Hydrographic Survey Water Depth Bay Floor Topography Elevation U.S. Geological Survey USGS Mean Lower Low Water (MLLW) North American Vertical Datum, 1988 (NAVD88) NOAA Discrete Tidal Zoning ISO 19115 Topic Category oceans and estuaries geoscientificinformation elevation Global Change Master Directory (GCMD) EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY EARTH SCIENCE > OCEANS > COASTAL PROCESSES INSTRUMENTS > EARTH REMOTE SENSING > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > ACCOUSTIC SOUNDERS None South San Francisco Bay CA Northern California USA Geographic Names Information System (GNIS) San Francisco Bay California None Please regonize the U.S. Geological Survey (USGS) and the National Oceanographic and Atmoshperic Administration (NOAA) as the source of this information. USGS-authored or produced data and information are in the public domain. Gerald Hovis NOAA/NOS mailing and physical address

NOAA National Ocean Service, SSMC4, Station 7204, 1305 East-West Highway

Silver Spring MD 20910-3281 USA (301) 713-2890 ext 109 Gerald.Hovis@noaa.gov Secondary Contact: Craig Martin Craig.Martin@noaa.gov (301) 713-2897 ext 133 U.S. Geological Survey, Coastal and Marine Geology Program 2007 http://walrus.wr.usgs.gov/infobank/b/b105sf/html/b-1-05-sf.meta.html Not determined. Polygon features present. Complete Metadata imported. 2007 Vector Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 SSFB05_zones Shapefile attribute table NOAA/NOS ZONE zone used for tidal reduction CO-OPS text TIME_COR time corrector (in minutes) relative to an operating water level gauge for reducing soundings in this zone to MLLW CO-OPS Positive and negative numbers (in minutes). RANGE_COR range corrector relative to an operating water level gauge for reducing soundings in this zone to MLLW CO-OPS Positive numbers. STATION reference tide station for reducing soundings in this zone to MLLW CO-OPS number representing tide station ID dtm_chg_cm offset between MLLW and NAVD88 (in cm). CO-OPS Positive numbers (in cm). dtm_chg_ft offset between MLLW and NAVD88 (in ft). CO-OPS Positive numbers (in ft). FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. AREA Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. PERIMETER Perimeter of feature in internal units. ESRI Positive real numbers that are automatically generated. U.S. Geological Survey, Coastal and Marine Geology Bruce Jaffe mailing and physical address

400 Natural Bridges Dr

Santa Cruz CA 95060-5792 USA (831) 427-4742 These data not intended for navigational purposes. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the U.S. Government nor any agency thereof, 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 data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. 20070511 Amy Foxgrover U.S. Geological Survey, Coastal and Marine Geology Geographer mailing and physical address

400 Natural Bridges Dr

Santa Cruz CA 95060-5792 USA (831) 427-4743 (831) 427-4748 afoxgrover@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile