GISP
Study online at https://quizlet.com/_3wmp98
1. Data exploration Data-centered query and analysis
2. Dynamic Seg- A data model that allows the use of linearly measured data on a coordinate system
mentations
3. Georelational A vector data model that uses a split system to store geometries and attributes
data model
4. GeoSpatial data Data that describes both the locations and characteristics of spatial features on
the earth surface
5. Object-based A data model that uses objects to organize spatial data and stores geometries and
data model attributes in a single system
6. Raster data mod- A data model that uses a grid and cells to represent the spatial variation of a
el feature
7. Relational Data- A collection of tables in which tables are connected to one another by keys
base
8. Topology A subfield of mathematics that when applied to GIS, ensures that the spatial
relationships between features are expressed explicitly
9. Triangulated ir- Composite vector data that approximate the terrain with a set of nonoverlapping
regular network triangles
(TIN)
10. Vector data mod- A spatial data model that uses points and their x y coordinates to construct spatial
el features of points, lines and polygons
11. Azimuthal Pro- One type of map projection that retains certain accurate directions. Azimuthal also
jection refers to one type of map projection that uses a plane as the projection surface
, GISP
Study online at https://quizlet.com/_3wmp98
12. Central lines The central parallel and the central meridian. Together, they define the center or
the origin of a map projection
13. Clarke 1866 A ground-measured ellipsoid, which is the basis for the North American Datum of
1927 (NAD27)
14. Conformal pro- One type of map projection that preserves local shapes
jection
15. Conic Projection One type of map projection that uses a cone as the projection surface
16. Cylindrical Pro- One type of map projection that uses a cylinder as the projection surface
jection
17. Datum The basis for calculating the geographic coordinates of a location. An ellipsoid is
a required input to the derivation of a datum
18. Datum shift A change from one datum to another, such as from NAD27 to NAD83, which can
result in substantial horizontal shifts of point positions
19. Decimal degrees A measurement system for long and lat values such as 42.5
(DD) system
, GISP
Study online at https://quizlet.com/_3wmp98
20. Degrees minutes A measurement system for long and lat values such as 42 30' 00", in which 1
seconds degree equals 60 minutes and 1 minute equals 60 seconds
21. Ellipsoid A model that approximates the earth, ALSO called spheroid
22. Equidistant pro- One type of map projection that represents areas in correct relative size
jection
23. False easting A value applied to the origin of a coordinate system to change the x-coordinate
readings
24. False northing A value applied to the origin of a coordinate system to change the x-coordinate
readings
25. Geographic Co- A Database developed by the US bro of Land Managment (BLM) to include
ordinate data long and lat values and other descriptive information for section corners and
base (GCDB) monuments recorded in the PLSS
26. Geographic Co- A location reference system for spatial features on the Earths surface
ordinate System
27. GRS80 A satellite-determined ellipsoid for the Geodetic Reference System
28. Lambert Confor- A common map projection, which is the basis for the SPC system for many states
mal conic projec-
tion
Study online at https://quizlet.com/_3wmp98
1. Data exploration Data-centered query and analysis
2. Dynamic Seg- A data model that allows the use of linearly measured data on a coordinate system
mentations
3. Georelational A vector data model that uses a split system to store geometries and attributes
data model
4. GeoSpatial data Data that describes both the locations and characteristics of spatial features on
the earth surface
5. Object-based A data model that uses objects to organize spatial data and stores geometries and
data model attributes in a single system
6. Raster data mod- A data model that uses a grid and cells to represent the spatial variation of a
el feature
7. Relational Data- A collection of tables in which tables are connected to one another by keys
base
8. Topology A subfield of mathematics that when applied to GIS, ensures that the spatial
relationships between features are expressed explicitly
9. Triangulated ir- Composite vector data that approximate the terrain with a set of nonoverlapping
regular network triangles
(TIN)
10. Vector data mod- A spatial data model that uses points and their x y coordinates to construct spatial
el features of points, lines and polygons
11. Azimuthal Pro- One type of map projection that retains certain accurate directions. Azimuthal also
jection refers to one type of map projection that uses a plane as the projection surface
, GISP
Study online at https://quizlet.com/_3wmp98
12. Central lines The central parallel and the central meridian. Together, they define the center or
the origin of a map projection
13. Clarke 1866 A ground-measured ellipsoid, which is the basis for the North American Datum of
1927 (NAD27)
14. Conformal pro- One type of map projection that preserves local shapes
jection
15. Conic Projection One type of map projection that uses a cone as the projection surface
16. Cylindrical Pro- One type of map projection that uses a cylinder as the projection surface
jection
17. Datum The basis for calculating the geographic coordinates of a location. An ellipsoid is
a required input to the derivation of a datum
18. Datum shift A change from one datum to another, such as from NAD27 to NAD83, which can
result in substantial horizontal shifts of point positions
19. Decimal degrees A measurement system for long and lat values such as 42.5
(DD) system
, GISP
Study online at https://quizlet.com/_3wmp98
20. Degrees minutes A measurement system for long and lat values such as 42 30' 00", in which 1
seconds degree equals 60 minutes and 1 minute equals 60 seconds
21. Ellipsoid A model that approximates the earth, ALSO called spheroid
22. Equidistant pro- One type of map projection that represents areas in correct relative size
jection
23. False easting A value applied to the origin of a coordinate system to change the x-coordinate
readings
24. False northing A value applied to the origin of a coordinate system to change the x-coordinate
readings
25. Geographic Co- A Database developed by the US bro of Land Managment (BLM) to include
ordinate data long and lat values and other descriptive information for section corners and
base (GCDB) monuments recorded in the PLSS
26. Geographic Co- A location reference system for spatial features on the Earths surface
ordinate System
27. GRS80 A satellite-determined ellipsoid for the Geodetic Reference System
28. Lambert Confor- A common map projection, which is the basis for the SPC system for many states
mal conic projec-
tion
