Data

Lichen Resurvey with Heavy Metal Analysis: Distribution of Silver concentration in lichen tissue in Maricopa county

Identifier: 122_1

Publication date: 2002

Author(s):
Corinna Gries; Toralf Zschau;

Abstract:

Distribution of Silver concentration in lichen tissue in Maricopa county




Temporal Coverage:

1998-01-01 - 1998-12-31

Geographic Coverage:

Geographic Description:Maricopa County, Arizona, USA
Bounding Coordinates:
Longitude:-113.373857 to -111.041434
Latitude:34.053548 to 32.490767

Contact:

Information Manager, Arizona State University, 
Global Institute of Sustainability,POB 875402,TEMPE
 caplter.data@asu.edu

Methods used in producing this dataset:


The database being used as data source

the raster was obtained by interpolating among the 28 locations using Inverse Distance Weighted (IDW). with the following settings: spatial resolution of 300 map units, nearest neighbor analysis, 20 points, power of 5, and no barriers.



Entities:


Raster: silver[download]

Description:

Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Rows & Columns:250 by 315matrix

Attribute:ppm_Ag
 Description:Not Available
Domain:Enumeration:
1: 0 - 0.026085910
2: 0.026085910 - 0.047203075
3: 0.047203075 - 0.061488216
4: 0.061488216 - 0.072667891
5: 0.072667891 - 0.083226474
6: 0.083226474 - 0.091300684
7: 0.091300684 - 0.095027242
8: 0.095027242 - 0.098753801
9: 0.098753801 - 0.117386594
10: 0.117386594 - 0.158999831

This material is based upon work supported by the National Science Foundation under grant nos. BCS-1026865, DEB-0423704 and DEB-9714833.