Monthly Archives: February 2012

Chantal de Fouquet has written a feature article in ES&T and says The sample mean of data collected during critical pollution periods is a biased estimator of the annual mean. The bias can be corrected by weighting techniques, which take … Continue reading →

Thanks again to everyone who tuned in to the webinar.  For those of you who wanted more information. Here is a link to Microcomputer.com who sells the CANOCO software that I use for PCA. Here is a link to the … Continue reading →

Why do we use conceptual site models (CSMs) and what makes a good CSM?  Travis Shaw of the USACE, Seattle District says that the definition of a CSM is a method to describe what is known or can be inferred about … Continue reading →