Fetching Data from iNaturalist
Navigate to Andromeda App; a CSV can be retrieved from the "Fetch image data" Tab using an iNaturalist username with public observations.
Input the iNaturalist username and select "Add Landcover Satellite Data" to add landcover information to the CSV based on the latitude and longitude of observations (this utilizes the latloncover package).
Then select "Fetch Observations" when it's done loading.
This will produce a sample of the first 6 observations while it fetches and calculates the remainder (the time estimate is based on the number of observations to process). The Generating CSV button will change to “Download CSV” when it’s done processing and ready for download.
The columns A_small, B_small, etc. indicate the percentage of that type of land cover in a box with ½-mile sides centered at the latitude and longitude of the observation, while the corresponding A_big, B_big are for a box with 2-mile side lengths. See the latlonCover data dictionary for land cover type definitions; they are sourced from CropScape (their categories were grouped into those defined in the data dictionary).
This CSV can be input to Andromeda (see instructions here):
Select desired columns for analysis (only numeric columns with at least two unique values will be displayed). The CSV from the “Fetch image data” has the following optional columns (note: Seconds are calculated from midnight, so this gives an idea for time of day). These columns are all that is used to determine the projections, but you can add your own quantitative data to the CSVs after download to explore other relationships with Andromeda. This one will just look at land cover type percentages and the seconds values.
