Description of MOYDGL06* data
The data associated to https://doi.org/10.1594/PANGAEA.901821 is Terra and Aqua combined 8-day composite snow–cover product generated from Terra MODIS 8-day composite Collection 6 (C6) 
(MOD10A2.006*), and Aqua MODIS 8-day composite (MYD10A2.006*), and merged with Randoph Glacier Inventory Version 6.0 (RGI6.0) for High Mountain Asia between 2000 and 2018. The data is
described in Julian day and each year has 46 images in 8-day composites (Table 1) simliar as in https://nsidc.org/data/MOD10A2/versions/6. The data is described by the values -200, 0, 200, 210, 240, and 250.

Following is the description of the values in the improved combined snow product
-200: Snow in either Terra or Aqua original product, consider it as no snow
0: Other classes than snow
200: Snow in the final product (snow in both Terra and Aqua original products)
210: No snow in the original products mainly due to cloud cover, converted to snow
240: Exposed debris-covered ice
250: Exposed debris-free ice

Table 1: 8-day Composite Periods
Period	Days		Period	Days		Period	Days		Period	Days
1	1-8		13	97-104		25	193-200		37	289-296
2	9-16		14	105-112		26	201-208		38	297-304
3	17-24		15	113-120		27	209-216		39	305-312
4	25-32		16	121-128		28	217-224		40	313-320
5	33-40		17	129-136		29	225-232		41	321-328
6	41-48		18	137-144		30	233-240		42	329-336
7	49-56		19	145-152		31	241-248		43	337-344
8	57-64		20	153-160		32	249-256		44	345-352
9	65-72		21	161-168		33	257-264		45	353-360
10	73-80		22	169-176		34	265-272		46	361-368¹
11	81-88		23	177-184		35	273-280		—	—
12	89-96		24	185-192		36	281-288		—	—
¹Includes 2 or 3 days from the next year.