| Main Title |
Properties of Designs for Sampling Continuous Spatial Resources from a Triangular Grid. |
| Author |
Overton, W. S. ;
Stehman, S. V. ;
|
| CORP Author |
Oregon State Univ., Corvallis. Dept. of Statistics. ;State Univ. of New York Coll. of Environmental Science and Forestry, Syracuse.;Corvallis Environmental Research Lab., OR. |
| Publisher |
c1993 |
| Year Published |
1993 |
| Report Number |
EPA/600/J-94/083; |
| Stock Number |
PB94-144714 |
| Additional Subjects |
Continuous sampling ;
Environmental monitoring ;
US EPA ;
Variance(Statistics) ;
Spatial distribution ;
Grid generation(Mathematics) ;
Computational grids ;
Design ;
Performance evaluation ;
Reprints ;
Environmental Monitoring and Assessment Program
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB94-144714 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
24p |
| Abstract |
Precision of systematic designs for sampling continuous response variables defined over a continuous spatial region have been extensively investigated. Estimation of variance, particularly for triangular grids, has been given less attention. Two of the designs proposed for sampling environmental resources in the Environmental Protection Agency's Environmental Monitoring and Assessment Program (EMAP) are based on a triangular grid. Implementation of either design requires derivation and evaluation of a variance estimator adequate for the purposes of EMAP. The performance of the proposed variance estimator was assessed under various surface model representations of the continuous response variable. Of the designs examined, a tessellation-stratified design permitted better estimation of variance, and was generally more precise, than a strict systematic design. (Copyright (c) 1993 by Marcel Dekker, Inc.) |
| Supplementary Notes |
Pub. in Communications Statistics, Theory and Methods, v22 n9 p2641-2660 1993. Prepared in cooperation with State Univ. of New York Coll. of Environmental Science and Forestry, Syracuse. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Properties of Designs for Sampling Continuous Spatial Resources from a Triangular Grid. |
| Category Codes |
68 |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
410526471 |
| Origin |
NTIS |
| Type |
CAT |
