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Online Files for Acid Deposition Sensitivity Map

Frequently anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• 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 data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Southern Appalachian Man and Biosphere (SAMAB) Cooperative, 1995, Online Files for Acid Deposition Sensitivity Map: U.S. Geological Survey Open-File Report 95-0810.

   Online Links:

   • <http://minerals.usgs.gov/acid1.html>

   Other_Citation_Details: ARC/INFO export files. All coverages 1.3MB.

2. What geographic area does the data set cover?

3. What does it look like?

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

   Calendar_Date: 1995

   Currentness_Reference: publcation date

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

   Geospatial_Data_Presentation_Form: map

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?

7. How does the data set describe geographic features?

   SAA-ACID.PAT

   acid deposition sensitivity (Source: OFR-95-0810)

   LITHOLOGY

   Rock unit lithology (Source: OFR-95-0810)

   Value	Definition
   an	Anorthosite
   cc	Coarse-grained clastics: sandstones, conglomerates
   ccm	Metamorphised coarse clastics
   d	Diorite
   di	Diabase
   fc	Fine-grained clastics: shales and mudstones
   fcm	Metamorphosed fine-grained clastics: slates, schists, phyllites
   fp	Felsic paragneiss and schist
   fv	Felsic volcanics
   gb	Gabbro
   gd	Granodiorite
   gr	Granite
   ls	Limestone
   mb	Marble
   mpg	Mafic paragneiss and schist; amphibolite
   mv	Mafic volcanics
   my	Mylonite
   um	Ultramafic rocks
   vu	Volcanic and volcaniclastic rocks; undifferentiated

   SENSITIVITY

   acid deposition sensitivity (Source: OFR-95-0810)

   Value	Definition
   high	High acid deposition sensitivity
   medium	Medium acid deposition sensitivity
   low	Low acid deposition sensitivity

   SAA-ACID.PAT

   Acid deposition sensitivity at specific locations (same attributes as polygon coverage SAA-ACID.PAT) (Source: OFR-95-0810)

   SAA-ACID_BASE.PAT

   map base information (Source: OFR-95-0810)

   CODE

   Physiographic Province (Source: OFR-95-0810)

   Value	Definition
   0	unknown
   1	Appalachain Plateau Province
   2	Valley and Ridge Province
   3	Blue Ridge Province
   4	Piedmont Province
   9	unknown

   SAA-ACID_BASE.AAT

   map base information (Source: OFR-95-0810)

   BNDTYPE

   Boundary type (Source: OFR-95-0810)

   Value	Definition
   1	DCW state boundary
   2	Southern Appalachain Assessment Area boundary
   3	Map border box
   4	Legend box
   5	Physiographic provinces

   SAA-ACID_BASE.PAT

   Base map information at specific points (same attributes as polygon coverage SAA-ACID_BASE) (Source: OFR-95-0810)

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Southern Appalachian Man and Biosphere (SAMAB) Cooperative

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Peper, John D
   USGS-GEO-ERG-NGM
   Mail Stop 926, USGS
   12201 Sunrise Valley Drive, MS 926A
   Reston, VA 20192
   US
   

   703-648-6332 (voice)
   jpeper@usgs.gov
   

Why was the data set created?

To provide to the public online files for a acid deposition sensitivity of the Southern Appalachains.

How was the data set created?

1. From what previous works were the data drawn?

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

   Date: 1994 (process 1 of 1)

   SAA-ACID: Compiled from a digital map of the generalized geologic setting of the southern U.S. Appalachians (Peper and others, in preparation). This data source was compiled by J.D. Peper from a draft map at a scale of 1:1,000,000 from various federal, state, and academic geologic maps. SAA-ACID_BASE: (1) State boundary data was extracted from the Digital Chart of the World on CD-ROM (1994) in Vector Product Format (VPF) and converted to ARC/INFO using VPFIMPORT on a Sun workstation. This digital data product was produced by the Defense Mapping Agency to produce small scale mapping of global coverage (except Antarctica) based on the 1:1,000,000-scale Operational Navigation Charts (ONC series). (2) Southern Appalachian Assessment Area boundary was obtained from K.A. Hermann of the National Biological Service, Norris, TN (karl@utkux1.utk.edu).

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

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?

   Complete

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

   Compiled from mapping done by authors and digital data from the Defense Mapping Agency.

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

1. Who distributes the data set? (Distributor 1 of 1)
   USGS Information Services
   Box 25286, Denver Federal Center
   Denver, Colorado 80255-0046
   USA
   

   1-888-ASK-USGS (voice)
   1-303-202-4695 (FAX)
   infoservices@usgs.gov
   

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

   US Geological Survey Open-File Report 95-0810

3. What legal disclaimers am I supposed to read?

   This digital product, identified as open-file report 95-810, has been approved for release and publication by the Director of the USGS. Although this digital product has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the product pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ARC/INFO export files Description of coverage saa-acid.e00 acid deposition sensitivity saa-acid_base.e00 map base information in format Gzipped TAR containing ARC/INFO export files.
     Network links:	<http://minerals.er.usgs.gov/acid/saa_acid_files.tar.Z>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 17-Aug-2000

Metadata author:

Jennifer Lenz
US Geological Survey
12201 Surise Valley Drive, Mail Stop 918
Reston, VA 20192
USA

703-648-6974 (voice)
703-648-6560 (FAX)
pschweitzer@usgs.gov

Metadata standard:

Content for Digital Geospatial Metadata (FGDC-STD-001-1998)