Supplementary data Kraaijenbrink et al. (2017)

 
This page provides links to the supplementary data of Kraaijenbrink, Bierkens, Lutz and Immerzeel, 2017. Impact of a global temperature rise of 1.5 degrees Celsius on Asia’s glaciers, Nature. Model scripts can be found in this repository.

Please note that all data is provided in 7z-archives. To extract the data use 7zip.
 

Model input

Raster data

The raster data that is required to run the model can be downloaded from the links below. There are separate links for the entire High Mountain Asia and for each RGI v5.0 sub-region. The downloadable 7z-archives hold separate folders for each glacier, which are named with the RGI glacier IDs. The rasters for each glacier are in GeoTIFF format, have a 30 m resolution in their local UTM projection (WGS84 datum), and are clipped to the RGI glacier extent.

Rasters present in each folder
classification.tif The debris classification made in google earth engine.
debris-thickness-50cm.tif Debris thickness estimation based on Landsat 8 surface temperature.
ice-thickness.tif Ice thickness determined using the Glabtop2 model
ls8-composite-b456.tif Landsat 8 warmest-pixel optical composite (bands RED, NIR, SWIR1)
ls8-composite-tsurf.tif Landsat 8 warmest-pixel surface temperature composite
srtm-elevation.tif SRTM 1 arc second elevation data
srtm-slope.tif Slope of the SRTM 1 arc second data

 

All regions (3.7 GB)

Central Himalaya (221 MB), East Himalaya (196 MB), East Kun Lun (120 MB), East Tien Shan (99 MB), Hengduan Shan (167 MB), Hindu Kush (108 MB), Hissar Alay (65 MB), Inner Tibet (291 MB), Karakoram (928 MB), Pamir (396 MB), Qilian Shan (57 MB), South and East Tibet (145 MB), West Himalaya (296 MB), West Kun Lun (315 MB), West Tien Shan (363 MB)

 

RDS data

The general model input data can be downloaded here (445 MB). The data in the 7zip archive is stored in R’s binary RDS format and R is required to open and read the data.

Files are present in the archive
dP_factors_2006-2100.rds Precipitation changes (delta factors) up to 2100
dT_degrees_2006-2100.rds Temperature changes (Kelvin) up to 2100
glacier-data.rds Glacier centroids with current climate and mass balance input
ostrem_meancurve.rds The Östrem curve used by the model
rgi-subregions.rds RGI sub-region polygons for Asia

 

Output data

Region-aggregated output is available in ESRI Shapefile format for the RGI sub-regions, major river basins, and for a 1×1 degree grid (download). The attribute tables of all shapefiles hold data on the occurrence of debris as well as current glacier area and volume, and volume projections for the end of century.

Available shapefile attributes
count		number of glaciers
a_total		total glacier area (m2)
a_debris  	glacier area covered by debris (m2)
a_ela     	glacier area below modelled ELA (m2)
a_ela_deb 	glacier area below modelled ELA covered by debris (m2)
v_total   	total glacier volume (m3)
v_debris  	glacier volume covered by debris (m3)
v_ela     	glacier volume below modelled ELA (m3)
v_ela_deb 	glacier volume below modelled ELA covered by debris (m3)
m_total_gt	total glacier mass (gigaton)
volST_EOC 	volume remaining in end of century under a stable current temperature
vol15_EOC 	volume remaining in end of century under 1.5 degree scenario
vol26_EOC 	volume remaining in end of century for the RCP2.6 model ensemble
vol45_EOC 	volume remaining in end of century for the RCP4.5 model ensemble
vol60_EOC 	volume remaining in end of century for the RCP6.0 model ensemble
vol85_EOC	volume remaining in end of century for the RCP8.5 model ensemble