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hurlbertlab / core-transient

Data and code for NSF funded research on core vs transient species
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determining raw spatial grain d249 #62

Closed ssnell6 closed 8 years ago

ssnell6 commented 8 years ago

I wanted to make sure I determined the raw spatial grain in a legitimate way.

The finest level of spatial grain for d249 is lakeid. In the metadata, each lake is said to be sampled with a "seine used is 12.2 m long by 1.2 m deep, consisting of two 5.5 x 1.2 m wings surrounding a 1.2 x 1.2 x 1.2 m central bag". (https://portal.lternet.edu/nis/metadataviewer?packageid=knb-lter-ntl.7.10). So, I said that the raw spatial grain would be 12.2*1.2 = 14.64 m2.

Is that a correct way of determining spatial grain?

ssnell6 commented 8 years ago

need to break this dataset down by type of gear used in order to get a uniform spatial scale, will vary depending on which gear has the most species caught.