I'm new to GIS - I have a background in statistics. I have the following proj4string:
'+proj=lcc +lat_1=40.66666666666666 +lat_2=41.03333333333333 +lat_0=40.16666666666666 +lon_0=-74 +x_0=300000 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +ellps=GRS80 +towgs84=0,0,0'
Can someone explain:
- What the parameters mean (I think lcc means 'lambert conic conformal')
- Where I should go to learn how this works/what projections are available?
- The input lat, lon coordinates are in decimal degrees. What are the output units? The +units=us-ft suggests feet
- I want to focus my analyses on Manhattan, Brooklyn, Queens, the Bronx. As part of my analysis, I want to split my projected map into a grid. Ideally, each cell will be, say, 1/10th a mile square. What projection should I use for this sort of work? Is LCC acceptable?