GET /v2.0/data/spatial/icesheet

age (integer, query, optional)

Ice-sheet age (in calibrated radiocarbon years before present, with 0 at 1950CE). Ages range from 0 to 18000.

Constraints: {'minimum': 1000, 'maximum': 18000}

prec (number, query, optional, default: 0.0001)

Precision of points within a rendered polygon. Many spatial objects are generated statistically and may have overly precise point coordinates. Often precisions to 100m is sufficient for rendering to map.<br> **NOTE**: the precision is dependent on the projected units. For the default SRID=4326 projection, precision units are in decimal degrees, where 0.1 degrees latitude = 11.1km and 0.0001 degrees latitude = 11.1m. For metric precision, units will be in meters.<br>The default value of *0.0001* represents a metric distance of 11.1m in the default 4326 projection.

Constraints: {'minimum': 0, 'maximum': 1000}

proj (integer, query, optional, default: 4326)

A valid integer [spatial reference identifier](https://en.wikipedia.org/wiki/Spatial_reference_system#Identifier) value. By default Neotoma returns all data with the SRID 4326 (standard lat/long), representing the [WSG84](https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84) model of the planet. For web mapping users may choose SRID *3857* if using projected features.

Constraints: {'enum': [3031, 3857, 3995, 4326, 9989, 32633, 32733]}