RGI 7.0: Glaciers in High Mountain Asia are improperly merged together #46
Description
RGI version
RGI v7.0
Describe the issue
There are ~34 instances in regions 13, 14, and 15 of multiple glaciers being grouped together within a single RGI outline and given a single RGIId. These glaciers have multiple termini that drain into distinct basins.
Expected outcome
The glacier outlines should be separated along their drainage divides and have unique RGI identifiers.
Screenshots
The blue outline in this example is a single glacier outline (RGI2000-v7.0-G-15-00060) from RGI v7.0. The orange polygons are 3 distinct glacier outlines in RGI v6 (RGI60-15.07374, RGI60-15.07439, RGI60-15.07375).
Additional context
I found 34 instances of this occurring in regions 13, 14, and 15 by using the RGI6 to RGI7 link files to identify glaciers in RGI7 that were linked to multiple large (>1 km2) RGI6 glaciers, and then manually checking each of these. I checked the GAMDAM inventory and the same issues were found. The centerline products for these glaciers should also be recalculated after the geometries are properly split.
The full list of glaciers that I believe have this issue is:
RGI2000-v7.0-G-15-00060
RGI2000-v7.0-G-15-04301
RGI2000-v7.0-G-15-11345
RGI2000-v7.0-G-15-11994
RGI2000-v7.0-G-15-14680
RGI2000-v7.0-G-15-14618
RGI2000-v7.0-G-14-32508
RGI2000-v7.0-G-14-33763
RGI2000-v7.0-G-14-17421
RGI2000-v7.0-G-14-12493
RGI2000-v7.0-G-14-12539
RGI2000-v7.0-G-14-24248
RGI2000-v7.0-G-14-08846
RGI2000-v7.0-G-14-05915
RGI2000-v7.0-G-13-39217
RGI2000-v7.0-G-13-24414
RGI2000-v7.0-G-13-24951
RGI2000-v7.0-G-13-42189
RGI2000-v7.0-G-13-43762
RGI2000-v7.0-G-13-48253
RGI2000-v7.0-G-13-47971
RGI2000-v7.0-G-13-47326
RGI2000-v7.0-G-13-65368
RGI2000-v7.0-G-13-64385
RGI2000-v7.0-G-13-63986
RGI2000-v7.0-G-13-70035
RGI2000-v7.0-G-13-69331
RGI2000-v7.0-G-13-73067
RGI2000-v7.0-G-13-74883
RGI2000-v7.0-G-13-51401
RGI2000-v7.0-G-13-54337