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Improved 8-day version 6.1 Terra–Aqua MODIS cloud-free snow cover and Randolph Glacier Inventory 6.0 product for high-mountain Asia between 2002 and 2022

Updated Date: 4/9/2025 10:31:53 AM

The product contains improved MODIS 8-day Terra (MOD10A2) and Aqua (MYD10A2) collection 6.1 snow-cover composite product merged with Randolph Glacier Inventory (RGI6.0). The product is generated using MODIS Terra and Aqua 8-day snow cover products MOD10A2 and MYD10A2 collection 6.1 (C61), respectively. The data covers High Mountain Asia (HMA) covering latitude 24.32 − 49.19 N and Longitude 58.22 − 122.48 E. The data is available with eight-day temporal resolution and 500 m spatial resolution covering the period between 2002 and 2022. The name of the product is derived from MODIS Terra (MOD) MODIS Aqua (MYD), and Glacier (GL), Version 6.1 (61) as M*D10A2V61GL. The product is described in ordinal date and each year has 46 eight-day composite images in GeoTIFF file format. The data is described by the values 25, 50, 198, 199, 200, 238, 239, 240, 242, 248, 249, 250, and 252. Following is the description of values in the improved combined snow product 25: No Snow classes 50: Cloud 198: Snow only in Terra 199: Snow only in Aqua 200: Snow in both Terra and Aqua 238: Debris-covered ice with Terra Snow 239: Debris-covered ice with Aqua Snow 240: Exposed debris-covered ice 242: Debris-covered ice with Snow in both Terra and Aqua 248: Debris-free ice with Terra Snow 249: Debris-free ice with Aqua Snow 250: Exposed debris-free ice 252: Debris-free ice with snow in both Terra and Aqua

Improved 8-day version 6.1 Terra–Aqua MODIS cloud-free snow cover and Randolph Glacier Inventory 6.0 product for high-mountain Asia between 2002 and 2022
Schema iso19139
Purpose The original MOD10A2* and MYD10A2* collection 6.1 products contain significant uncertainties of underestimation and overestimation in comparison to this product. The availability of this improved product can serve as a valuable dataset for observation and simulation of climate, hydro-glaciological forcings, calibration, validation, and other water-related studies.
Descriptive Keyword HMA, HKH (place) MODIS, Snow Cover, Cryosphere (theme)
Metadata Record Info
Language eng
Charset utf8
Hierarchy Level dataset
Date 2025-04-09T10:31:53
Standard Name North American Profile of ISO 19115:2003
Contact
Name Sher Muhammad Email sher.muhammad@icimod.org
Organization Name ICIMOD Voice
Position name Remote Sensing Specialist Address
Role author
Identification Info
Title Improved 8-day version 6.1 Terra–Aqua MODIS cloud-free snow cover and Randolph Glacier Inventory 6.0 product for high-mountain Asia between 2002 and 2022
Date 2023-12-22
Date Type publication
Abstract The product contains improved MODIS 8-day Terra (MOD10A2) and Aqua (MYD10A2) collection 6.1 snow-cover composite product merged with Randolph Glacier Inventory (RGI6.0). The product is generated using MODIS Terra and Aqua 8-day snow cover products MOD10A2 and MYD10A2 collection 6.1 (C61), respectively. The data covers High Mountain Asia (HMA) covering latitude 24.32 − 49.19 N and Longitude 58.22 − 122.48 E. The data is available with eight-day temporal resolution and 500 m spatial resolution covering the period between 2002 and 2022. The name of the product is derived from MODIS Terra (MOD) MODIS Aqua (MYD), and Glacier (GL), Version 6.1 (61) as M*D10A2V61GL. The product is described in ordinal date and each year has 46 eight-day composite images in GeoTIFF file format. The data is described by the values 25, 50, 198, 199, 200, 238, 239, 240, 242, 248, 249, 250, and 252. Following is the description of values in the improved combined snow product 25: No Snow classes 50: Cloud 198: Snow only in Terra 199: Snow only in Aqua 200: Snow in both Terra and Aqua 238: Debris-covered ice with Terra Snow 239: Debris-covered ice with Aqua Snow 240: Exposed debris-covered ice 242: Debris-covered ice with Snow in both Terra and Aqua 248: Debris-free ice with Terra Snow 249: Debris-free ice with Aqua Snow 250: Exposed debris-free ice 252: Debris-free ice with snow in both Terra and Aqua
Purpose The original MOD10A2* and MYD10A2* collection 6.1 products contain significant uncertainties of underestimation and overestimation in comparison to this product. The availability of this improved product can serve as a valuable dataset for observation and simulation of climate, hydro-glaciological forcings, calibration, validation, and other water-related studies.
Status completed
Charset utf8
Topic Category geoscientificInformation
Spatial Representation Type grid
Cited Responsible Parties
Name Sher Muhammad Email sher.muhammad@icimod.org
Organization Name ICIMOD Voice 977-1-5275222
Position name Remote Sensing Specialist Address Nepal
Role author
Geographic Extent
Geographic Extent East 122.48 Geographic Extent West 58.22
Geographic Extent North 49.19 Geographic Extent South 24.32
Resource Maintenance Information
Maintenance and update frequency asNeeded
User Defined Maintenance Frequency
Date of Next Update
Legal Constraints
Use Limitation Made available under Creative Commons Attribution 4.0 license (CC-BY 4.0). Suggested citation: ICIMOD (2023). An improved 8-day version 6.1 Terra–Aqua MODIS cloud-free snow cover and Randolph Glacier Inventory 6.0 product for high-mountain Asia between 2002 and 2022 [Data set]. ICIMOD. https://doi.org/10.26066/RDS.1973819
Access Constraints copyright
Use Constraints copyright
Reference System Information
Code WGS 1984
Data Quality Info
Hierarchy level dataset
Distributor Info
Email metadata@icimod.org Organization Name ICIMOD
Voice Position name
Address Role distributor