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| Titel |
Optimal design of a climatological network: beyond practical considerations |
| VerfasserIn |
G. S. Mauger, K. A. Bumbaco, G. J. Hakim, P. W. Mote |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2193-0856
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Instrumentation, Methods and Data Systems ; 2, no. 2 ; Nr. 2, no. 2 (2013-07-22), S.199-212 |
| Datensatznummer |
250017765
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| Publikation (Nr.) |
 copernicus.org/gi-2-199-2013.pdf |
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| Zusammenfassung |
Station locations in existing environmental networks are typically chosen
based on practical constraints such as cost and accessibility, while
unintentionally overlooking the geographical and statistical properties of
the information to be measured. Ideally, such considerations should not take
precedence over the intended monitoring goal of the network: the focus of
network design should be to adequately sample the quantity to be observed.
Here we describe an optimal network design technique, based on ensemble
sensitivity, that objectively locates the most valuable stations for a given
field. The method is computationally inexpensive and can take practical
constraints into account. We describe the method, along with the details of
our implementation, and present-example results for the US Pacific Northwest,
based on the goal of monitoring regional annual-mean climate. The findings
indicate that optimal placement of observing stations can often be highly
counterintuitive, thus emphasizing the importance of objective approaches.
Although at coarse scales the results are generally consistent, sensitivity
tests show important differences, especially at smaller spatial scales. These
uncertainties could be reduced with improvements in datasets and improved
estimates of the measurement error. We conclude that the method is best
suited for identifying general areas within which observations should be
focused, and suggest that the approach could serve as a valuable complement
to land surveys and expert input in designing new environmental observing
networks. |
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