Endangered Species Recovery Program
Geospatial Metadata

Natural Vegetation of Central California based on Kuchler (1977)

Available as [Questions & Answers] - [Outline] - [Parseable text] - [SGML] - [XML] - [DIF]

Frequently-anticipated questions:


What does this data set describe?

    Title:
    Natural Vegetation of Central California based on Kuchler (1977)
    Abstract:
    A polygon coverage of Historical natural vegegation for central California based on the work of A.W. Kuchler.
    Supplemental_Information:
    A statewide coverage is available from the Bureau of Reclamation Mid-Pacific GIS Service Center. See URL: <http://www.mp.usbr.gov/mp400/geopage/metadata/kuchler.html>

  1. How should this data set be cited?

    Endangered Species Recovery Program and the Bureau of Reclamation MPGIS Service Center, 1999, Natural Vegetation of Central California based on Kuchler (1977): Endangered Species Recovery Program, Fresno, CA, US.

    Online Links:

    Other_Citation_Details:
    U.S. FWS, 1998 Recovery Plan for Upland Species of the San Joaquin Valley, California.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -123.29
    East_Bounding_Coordinate: -115.391
    North_Bounding_Coordinate: 40.9719
    South_Bounding_Coordinate: 32.5188

  3. What does it look like?

    kuchler_sjv.jpg (JPEG)
    Graphic of theme kuchler_sjv

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 1999
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set.

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 10
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -123
      Latitude_of_Projection_Origin: 0
      False_Easting: 500000
      False_Northing: 0

      Planar coordinates are encoded using Coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 10
      Ordinates (y-coordinates) are specified to the nearest 10
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clark 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Attrbutes are CNAME for the common name of the vegetation type and SNAME for the scientific name of the vegetation type.
    Entity_and_Attribute_Detail_Citation: Kuchler, 1977


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Scott Snover (ESRP) Nancy Norvell (ESRP) Micheal Sebhat (USBR) D. Edwards (USBR) Scott E. Phillips (ESRP)

  3. To whom should users address questions about the data?

    Endangered Species Recovery Program
    GIS Analyst


    US

    (voice)
    559 453 1227 (FAX)
    gis@esrp.org

    Contact_Instructions: Contact by electronic or postal mail


Why was the data set created?

To show Historical vegetation in the Central Valley of California for Figure 2. of the SJV Recovery Plan.


How was the data set created?

  1. Where did the data come from?

    KUCHLER (source 1 of 1)
    Kuchler, A.W., 1997, The map of the natural vegetation of California.: John Wiley and Sons, New York, NY, US.

    Online Links:

    Other_Citation_Details:
    Pp. 909-938 plus supplement in Terrestrial vegetation of California (M.G. Barbour and J. Major, eds.)
    Type_of_Source_Media: paper
    Source_Contribution: Coverage digitized from the map source.

  2. What changes have been made?

    Date: 1995 (change 1 of 1)
    (The following was taken from a text notes written by Scott Snover or Nancy Norvell of ESRP). "The original coverage was digitized from the original map published by A.W. Kuchler in 1977. The Lat-Long intersection points on the original map were used to generate a tic file. The map was digitized one section at a time, a section being the area bounded by four tic points (i.e.- 1 degree Lat by 1 degree Long). Each of these sections was done individually and later joined together in a master coverage. Rather than try to digitize directly from the original map, which was folded and heavily creased, copies of portions of the map were used, taking care to make sure that as many creases as possible were flattened to obtain a clean copy. Also, since some of the original shade symbols did not copy clearly, or the border between two shade symbols was indistinct, the borders were copied by hand from the original map. In some areas along the coast or along lakebeds where the copy was unclear as to where all the lines were. In these cases, a coverage showing either the coastline or the lake boundaries was brought up as a back coverage and the relevant arcs were traced on the screen." (end of quoted text). Addtional digitizing and edits were done by the Bureau of Reclamation MP-GIS Service Center. The statewide coverage was reduced to the Central Valley coverage by ESRP.

    Person responsible for change:

    Endangered Species Recovery Program
    GIS Analyst


    US

    (voice)
    559 453 1227 (FAX)
    gis@esrp.org

    Contact_Instructions: Contact by electronic or postal mail


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Unknown. The attributes are consistent with Figure 2. of the SJV Recovery Plan.

  2. How accurate are the geographic locations?

    This data represents a regional view and is not accurate to the parcel level. The Lat-Long intersection points on the original map were used as control points.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    Polygon features that were completely outside of the study area were omitted.

  5. How consistent are the relationships among the observations, including topology?

    Arcs connect to each other at nodes. Arcs have direction and left and right sides. Arcs that connect to surround an area define a polygon.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none
Use_Constraints:
None. Acknowledgement of the Endangered Species Recovery Program would be appreciated in products derived from this data.

  1. Who distributes the data set? (Distributor 1 of 1)

    Endangered Species Recovery Program
    GIS Analyst


    US

    (voice)
    559 453 1227 (FAX)
    gis@esrp.org

    Contact_Instructions: Contact by electronic or postal mail
  2. What's the catalog number I need to order this data set?

    Arc Export file of kuchler_sjv

  3. What legal disclaimers am I supposed to read?

    No warranty, expressed or implied is made by the ESRP regarding the utility of the data, nor shall the act of distribution constitute any such warranty. These data are geographic illustrations and do not represent legal boundaries.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    computer with software to import ARC/INFO GIS data


Who wrote the metadata?

Dates:
Last modified: 02-Jul-1999

Metadata author:
Endangered Species Recovery Program
GIS Analyst


US

(voice)
559 453 1227 (FAX)
gis@esrp.org

Contact_Instructions: Contact by electronic or postal mail
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.4.15 on Fri Jul 2 23:38:33 1999
Endangered Species Recovery Program
http://arnica.csustan.edu/esrpp