How does the data set describe geographic features?
parksNational Park System Unit Boundaries in GIS Format (Source: RITA/BTS) REVISIONREVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields. (Source: RITA/BTS) Range of values Minimum:00 Maximum:99 ShapeFeature geometry. (Source: ESRI) Coordinates defining the features. PARKNAMEPark Name (Source: NPS) Character Value DESIGNATIODesignation of National Park (Source: NPS) Character Value ALPHACODEFour Letter code to Describe National Park (Source: NPS) Character Value STABBRU.S. Postal Service two letter state abbreviation for the additional states (Source: NPS) Formal codeset Codeset Name:Official List of State Postal Abbreviations Codeset Source:U.S. Postal Service STFIPSState FIPS code (Source: RITA/BTS) Formal codeset Codeset Name:Federal Information Processing Standard Codeset Source:National Institute of Standards and Technology (NIST) Shape_AreaArea of feature in internal units squared. (Source: ESRI) Positive
ib_dathkdd.dbfShapefile Attribute Table LEGENDdescription of thickness category (character data, width 28) ValueDefinition 28 to 42 inches 42 to 66 inches channels or no coal greater than 66 inches insufficient data less than 28 inches No Coal Unassessed Entity_and_Attribute_Overview: Areas defined as “no coal” or “Insufficient Data” are where the *position* of the coals is identifiable using the surrounding stratigraphy, but there is no coal preserved in the rock record. They are areas within the outcrop extent of the coal beds where we have data essentially demonstrating zero coal thickness. In addition, given that these regional datasets are a compilation of data generated by each of the three states (Kentucky, Illinois, Indiana) within the Illinois basin, some dIscrepencies between states may exist. For instance, “Channels” have been defined and are represented in Illinois and Kentucky but have been extracted out of the coal extent in Indiana. In addition, some features have been d
ib_heeledd.dbfShapefile Attribute Table Gridcodenumeric code for elevation categories Range of values Minimum:-2350 Maximum:850 Legendenglish description of elevation categories Character Field Entity_and_Attribute_Overview: Areas defined as “no coal” or “Insufficient Data” are where the *position* of the coals is identifiable using the surrounding stratigraphy, but there is no coal preserved in the rock record. They are areas within the outcrop extent of the coal beds where we have data essentially demonstrating zero coal thickness. In addition, given that these regional datasets are a compilation of data generated by each of the three states (Kentucky, Illinois, Indiana) within the Illinois basin, some dIscrepencies between states may exist. For instance, “Channels” have been defined and are represented in Illinois and Kentucky but have been extracted out of the coal extent in Indiana. In addition, some features have been defined as “Unassessed.” These are areas which exist within th
Entity_and_Attribute_Overview: The thirty-seven lithogeochemical units are defined for the New England study region using an alpha-numeric identification: a lithology code (“Litho_code”, numeric) with a modifier code (“Lith_mod”, alphabetic). Example: Litho_code= “33” and Lith_mod= “cs” Lithogeochemical unit is expressed as “33cs” There are 20 lithology codes (including a code for water) that represent rock type, metamorphic grade, and geologic setting. Each bedrock unit is assigned one of 20 lithology codes based on the description of the bedrock unit from the state bedrock geologic maps. Nine lithological modifier codes are used to identify minor amounts of carbonate or sulfide minerals, and subdivide granitic units into subgroups based on their chemical and mineral characteristics. The 37 lithogeochemical units are generalized into major rock group categories (Rock_GpA and Rock_GpB).
