The address feature class is intended to show address locations in Maricopa County, Arizona.

This dataset contains the Maricopa County, Arizona City Council District boundaries for those cities with council districts. This includes Phoenix, Surprise, Buckeye, Peoria, Glendale and Mesa.

Residential Completion data is provided to MAG by member agencies on a quarterly basis, then processed and geocoded by MAG staff. The Residential Completion database contains a record for every residential completion in Maricopa County from April 1, 1990 (1990 Census date) through December 31, 2002.

This dataset contain the parcels from the Maricopa County Assessor's office. The area covered is in Maricopa County (Phoenix metro area), Arizona. Major cities include Phoenix, Scottsdale, Mesa and Tempe. Various types of property usage are depicted in this layer. The most common are residential, commercial, industrial and agricultural properties. Multiple sources were used to collect the information including but not limitied to CAD packages, aerial photography, and digitizing from paper maps. Adjustments are made where necessary in the process of updating and some parcel lines are only approximate. In cases where a line adjustment might create a loss of landsize it is typically taken out from the right of way to minimize the loss of landsize in the property. The line symbology for different property lines are not available in this dataset. In addition to standard fields the data has unique assessor parcel number for identification, basic temporal information and the location of property.

REQUIRED: A brief narrative summary of the data set.

The 1995 Land Use coverage was created as a joint effort of MAG (Maricopa Association of Governments) and MAG member agency staff. Land Use components were classified into 24 categories. The 1995 Land Use coverage is used for a variety of planning purposes including socioeconomic forecasting and air quality modeling.

Recorded subdivision boundaries for Maricopa County. Includes the Maricopa County Recorder (MCR) number and subdivision name.

This is the digitized version of a map of the Hohokam canal system in what is now the Phoenix metropolitan area. It is based on the thesis research by J. B. Howard "Paleohydraulics: Techniques for modeling the operation and growth of prehistoric canal systems"

The cities annex feature class is intended to track city and town annexations in Maricopa County, Arizona.

The City of Tempe ZIP Codes feature class is intended to show the USPS ZIP Code boundaries within Tempe, Arizona.

Distribution of intustrial copper emissions in Maricopa county

This dataset contain the parcels from the Maricopa County Assessor's office. The area covered is in Maricopa County (Phoenix metro area), Arizona. Major cities include Phoenix, Scottsdale, Mesa and Tempe. Various types of property usage are depicted in this layer. The most common are residential, commercial, industrial and agricultural properties. Multiple sources were used to collect the information including but not limited to CAD packages, aerial photography, and digitizing from paper maps. Adjustments are made where necessary in the process of updating and some parcel lines are only approximate. In cases where a line adjustment might create a loss of landsize it is typically taken out from the right of way to minimize the loss of landsize in the property. The line symbology for different property lines are not available in this dataset. In addition to standard fields the data has unique assessor parcel number for identification, basic temporal information and the location of property.

Distribution of intustrial chromium emissions in Maricopa county

Sites of Xanthoparmelia collections for metal analysis

Location data for the study sites used for analysis of the Spatial/Temporal change of climate in relation to urban fringe development project, parts of Phoneix and surrounding areas, 2001 to 2002.

This study examines the effects of land use on microclimate along several commercial-to-rural land use transects in the greater Phoenix metropolitan area.

Floodplain zones as computed by the Flood Control District of Maricopa County (FCDMC) according to the Federal Emergency Management Agency (FEMA) letter coding scheme, prior to approval by FEMA.

These data represent the planned and existing development areas (as of 2000) for Maricopa county, central Arizona.

Profile baselines as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM)

An extensive survey was conducted to assess the species diversity of natural desert vegetation around the CAP-LTER study area. Remnant patch habitats (mostly parks and preserves) occurring within the urban matrix / fringe were emphasized. Three outlying areas (White Tank mountains west of town, Union Hills north of town, and Usery Mountain Park east of town) were surveyed for comparison. The original intent was to provide data on the woody and spring / summer herbaceous species in each area, but drought conditions allowed the spring herbs to be surveyed twice (1998, 2001) and summer herbs surveyed only once (1999). Thus, all locations have woody data but only a subset has herbaceous data. Surveys consisted of transects (elaborated below) summarized by the patch or outlying area name followed by a number (e.g. Unhill-11, Squaw-40, Hayden-8). Herb datasets are signified by a ‘P’ for spring and a ‘U’ for summer following the transect number (e.g. PaPk-1P, PaPk-1U).