Great Lakes Islands

Metadata also available as

Frequently-anticipated questions:


What does this data set describe?

Title: Great Lakes Islands
Abstract:
A multi-part polygon dataset Great Lakes islands and island complexes (Ontario and United States). This dataset includes islands from Lake Superior, Lake Michigan, St. Marys River, Lake Huron, Georgian Bay, St. Clair River, Lake St. Clair, Detroit River, Lake Erie, Niagara River, Welland Canal, Lake Ontario and the St. Lawrence River.
Supplemental_Information:
Islands may be defined as natural, articial, reefs and submerged rocks that are periodically exposed.
Limitations in the best available digital mapping will result in some low-lying islands, rocks and shoals not being distinguishable and therefore not designated as islands in this layer.
This information was used to conduct an ecologically-based analysis to identify the islands and island complexes within the Great Lakes that are the highest priority for conservation action.
  1. How should this data set be cited?

    Natural Heritage Information Ce, Nature Conservancy of Canada and The N, Unknown, Great Lakes Islands.

    Online Links:

    • \\MNRPPTBODT00407\D$\GLIB\Binational_work\packaged_product\Great_Lakes_Islands_April2010.shp

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -92.094418
    East_Bounding_Coordinate: -74.379750
    North_Bounding_Coordinate: 49.015476
    South_Bounding_Coordinate: 41.399574

  3. What does it look like?

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

    Calendar_Date: April, 5, 2010
    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. It contains the following vector data types (SDTS terminology):

      • G-polygon (4797)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    Great_Lakes_Islands_April2010

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    FID_US_GL_

    WATERBODY

    ACRES

    MISSINGISL

    CAUTION_PT

    NUM_CAUPTS

    ISL_TYPE

    ISLCOMMENT

    ASSESS

    MSHMANNAME

    CMPLX_NAME

    CE_LUMP

    FID_COMPLE

    ISLE_COMP

    BDRCK_CODE

    LARGE_IS_1

    COUNT

    COASTAL_EN

    AREA_1

    PERIMETE_1

    HECTARES_1

    BUFFER_ID

    C1

    C1_SCORE

    C2P1

    C2P1_SCORE

    C2P2

    C2P2_SCORE

    C2_TOTAL

    C3P1

    C3P1_SCORE

    C3P2

    C3P2_SCORE

    C3P3

    C3P3_SCORE

    C3P4

    C3P4_SCORE

    C3_TOTAL

    C4

    C4_SCORE

    SPECIES_SU

    C5

    C5_SCORE

    C6

    C6_SCORE

    VEGETATION

    C7

    C7_SCORE

    C8

    C8_SCORE

    C9

    C9_SCORE

    C10

    C10_SCORE

    C11

    C11_SCORE

    C12

    C12_SCOR_1

    ECOLOGICAL

    C13

    C13_SCORE

    C14P1

    C14P1_SCOR

    C14P2

    C14P2_SCOR

    C14P3

    C14P3_SCOR

    C14_TOTAL

    C15P1

    C15P1_SCOR

    C15P2

    C15P2_SCOR

    C15_TOTAL

    ECOSYSTEM_

    TOTAL_BILO

    C16

    C16_SCORE

    C17P1

    C17P1_SCOR

    C17P2

    C17P2_SCOR

    C17_TOTAL

    C18

    C18_SCORE

    PHYSICAL_D

    C19

    C19_SCORE

    SIZE_SUBTO

    C20

    C20_SCORE

    DISTINCTIV

    TOTAL

    NATURAL_BR

    US_REV_T

    PRIORITY

    PROT_HA

    PROT_2

    PROT_3

    PROT_4

    PERCENT_PR

    PERCENT__1

    PERCENT__2

    PERCENT__3

    TOTAL_PERC

    NUMBER_OF_

    BUILDING_R

    BUILDING_S

    HIGH_USE_R

    RECREATION

    LIGHTHOUSE

    ANCHORAGE_

    BOAT_LAUNC

    ACCESS_SIT

    RESIDENTIA

    CAMP__RECR

    TOURISM_ES

    COTTAGE_RE

    COTTAGE__1

    INVASIVES

    PITS_AND_Q

    PROXIMITY_

    ROAD_DENSI

    CROPLAND

    TOTAL_THRE

    THREAT_NAT

    COUNTRY

    SPLIT

    SLIM_THREA

    SLIM_TOT


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?

    OMNR, NCC, TNC

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

    Bonnie Henson
    Natural Heritage Information Centre, Ontario Ministry of Natural Resources

    705-755-2169 (voice)


Why was the data set created?

To produce a comprehensive spatial database of Great Lakes islands and their associated biodiversity values, threats and conservation status.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    (process 1 of 2)
    Dataset copied.

    Data sources used in this process:

    • D:\GLIB\Binational_work\reporting\master shp work\binational_islands_Feb2010

    (process 2 of 2)
    Dataset copied.

    Data sources used in this process:

  3. What similar or related data should the user be aware of?

    , Great Lakes Islands.


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

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

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

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


How can someone get a copy of the data set?

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

Access_Constraints:
This data should not be redistributed without the consent of the Nature Conservancy of Canada or the Natural Heritage Information Centre/OMNR or The Nature Conservancy.
Use_Constraints:
If information from this layer is used (in the preparation of documents, presentations, analysis of creation of other data) the OMNR/NHIC, NCC and TNC should be acknowledged. The NHIC, NCC and TNC are not responsible for the accuracy and currency of the data sets provided for the Great Lakes island analysis.

  1. Who distributes the data set?[Distributor contact information not provided.]

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 14-Apr-2010
Metadata author:
Natural Heritage Information Centre, Ontario Ministry of Natural Resources
c/o Bonnie Henson
Natural Heritage Project Ecologist
300 Water Street, 2nd Floor, North Tower
Peterborough, Ontario K9J 8M5
Canada

705-755-2169 (voice)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.6 on Wed Apr 14 11:19:31 2010