IceSat2R {IceSat2R}

The "IceSat2R" package

Description

An important aspect of the "IceSat2R" (https://cran.r-project.org/web/packages/IceSat2R/index.html) package is that it includes the code, documentation, and examples so that users can retrieve, process, and analyze data based on specific workflows.

Details

For instance,

• A user can select an "area of interest" (AOI) either programmatically or interactively

• If the "Reference Ground Track" (RGT) is not known, the user has the option to utilize either

  1. one of the "overall_mission_orbits()" or "time_specific_orbits()" to compute the RGT(s) for a pre-specified global area or for a time period, or

  2. one of the "vsi_nominal_orbits_wkt()" or "vsi_time_specific_orbits_wkt()" to compute the RGT(s) for a specific AOI

• Once the RGT is computed it can be verified with the "getTracks()" function of the "OpenAltimetry Web API" (https://openaltimetry.org/data/swagger-ui/)

• Finally the user can utilize one of the "get_atlas_data()" or "get_level3a_data()" functions to retrieve the data for specific product(s), Date(s) and Beam(s)

This work-flow is illustrated also in a diagram