---
output: github_document
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<!-- README.md is generated from README.Rmd. Please edit that file -->

```{r setup, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)
```
# sst.site.extract

The goal of sst.site.extract is to expose some of the lurking problems in seemingly simple spatial tasks. 

We will: 

* define a number of coastal sites
* access time series of SST data
* find the right pixel for every site (and discover some sites are in the land mask)
* use nearest-neighbour tools to define proxy-sites, the nearest point in valid data for all sites
* optimize the SST lookup and define an extraction loop
* make a mistake after testing the loop with i = 1 and running the entire thing on that first slice
* prevail