| Main Title |
Comparing Sampling Designs for Monitoring Ecological Status and Trends: Impact of Temporal Patterns (Chapter 3). |
| Author |
Urquhart, N. S. ;
Overton, W. S. ;
Birkes, D. S. ;
|
| CORP Author |
Oregon State Univ., Corvallis.;Corvallis Environmental Research Lab., OR. |
| Publisher |
c1993 |
| Year Published |
1993 |
| Report Number |
EPA/600/A-93/196; |
| Stock Number |
PB93-222289 |
| Additional Subjects |
Environmental monitoring ;
Biological indicators ;
Statistical analysis ;
Sampling ;
Design criteria ;
Environmental surveys ;
Ecology ;
Environment pollution ;
Long term effects ;
Reprints ;
Status and trends
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB93-222289 |
Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. |
|
11/22/1993 |
|
| Collation |
18p |
| Abstract |
The paper presents a comparison of two classes of sampling designs suggested for long-term environmental monitoring. One class is based on a rotating panel design that prescribes visiting a panel of sites for several consecutive years with partial replacement of sites each year; the other class is based on a serially alternating design which prescribes returning to sampling sites every four years. A random effects linear model is used to investigate and compare the proposed sampling designs because the sites to be visited and the years of visits may manifest substantial random contributions. The class of designs based on the serially alternating design lead to more precise estimates of current status and of trends in the ecological resource when the site components of variance is substantially greater than the year component and/or when the sample sizes are smaller. |
| Supplementary Notes |
Pub. in Statistics for the Environment, Chapter 3, p71-85 1993. See also PB92-103449. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Book chapter. |
| Title Annotations |
Reprint: Comparing Sampling Designs for Monitoring Ecological Status and Trends: Impact of Temporal Patterns (Chapter 3). |
| Category Codes |
68; 57H |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
328019638 |
| Origin |
NTIS |
| Type |
CAT |
