1. MODIS Cryosphere Science Data Product Metrics Prepared by the ESDIS SOO Metrics Team for the Cryosphere Science Data Review January 11-12, 2006

2. MODIS NSIDC 122205.ppt 2 Purpose Complements the data products table of metrics Presents the discipline data by significant parameters –# of products, archive, distribution, # of users Allows reviewers to distinguish individual products for further analysis

3. MODIS NSIDC 122205.ppt 3 ECS Product Data Metrics Summary FieldDefinition Acronym ESDTEarth Science Data Type -- product mnemonic ESDT NameDescription DAACArchive center LevelProduct processing level DisciplineA primary, scientific application area for which a product is used Granules ArchivedTotal granules stored as of 09/30//2005 and granules archived per FY GA Archive VolumeTotal storage (GBs) as of 09/30/2005 and amount archived per FY AV Distinct End Users per Product (ESDT) per FY Counts of unique users of a product within a FY Total End Users per Product (ESDT) per FY00-FY05 Sum of users over the five year period; five year total is the sum of all years and therefore not a total of unique users over that time frame UU Distribution Volumes per ESDT per FY & Total Volume of the product (GBs) distributed within a FY plus the five year totalDV Distribution Granules per ESDT per FY & Total Number of granules of the product distributed within a FY plus the five year totalDG Orders per Product (ESDT) per FY & FY00-FY05 Total Number of orders (both unique and unknown) of the product within a FY plus the five year totalO Production flagIndicates this product is used to produce other products or for QA testing Product DatesArchive Date, Product Release Date, Discontinued Date CommentUsed sparingly, provides qualitative guidance to help understand product

4. MODIS NSIDC 122205.ppt 4 Sample Science Data Product Review Charts and Tables Standard set of charts & tables –Table characterizing the discipline data set –Detailed descriptions of products –Archive volume of discipline data by product level –Focus on L2 ESDTs Product by End User, Product by Archive Volume Table of products with selected parameters –Focus on L3 ESDTs Product by End User, Product by Archive Volume Table of products with selected parameters –Scatter plots (3) of ESDTs by demand and distribution parameters –Sample time profiles Archive, distribution, users and orders by FY Data pool distribution

5. MODIS NSIDC 122205.ppt 5 Summary Table of MODIS Cryosphere Data Products Terra Products L2L3Total # of Products (ESDTs)279 Min # of Unique End Users Requesting an ESDT 13115 Max # of Unique End Users Requesting an ESDT 237357 Aqua Products L2L3Total # of Products (ESDTs)279 Min # of Unique End Users Requesting an ESDT 260 Max # of Unique End Users Requesting an ESDT 6539

6. MODIS NSIDC 122205.ppt 6 Terra MODIS Cryosphere Products Detailed Descriptions ESDTNameDetailed description MOD10_L2 MODIS/Terra Snow Cover 5- Min L2 Swath 500m MODIS/Terra Snow Cover 5-Min L2 Swath 500m (MOD10_L2) contains snow cover and quality assurance (QA) data, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 500 m resolution. Version 4 (V004), the latest version of MODIS data available, has two separate snow cover fields: one incorporating the original cloud mask, and another using a less cloud-conservative mask. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MOD29 MODIS/Terra Sea Ice Extent 5- Min L2 Swath 1km MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km (MOD29) contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice surface temperature (IST), IST pixel QA, sea ice by IST, combined sea ice, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 1 km resolution. Version 4 (V004) is the latest version of MOD29 data available. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics. MOD10A1 MODIS/Terra Snow Cover Daily L3 Global 500m SIN Grid MODIS/Terra Snow Cover Daily L3 Global 500m Grid (MOD10A1) contains snow cover and quality assurance (QA) data in HDF-EOS format, along with corresponding metadata. Data files after 14 September 2003 include a snow albedo array with a 'beta' status. MOD10A1 consists of 1200 km by 1200 km tiles of 500 m resolution data gridded in a sinusoidal map projection. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MOD10A2 MODIS/Terra Snow Cover 8- Day L3 Global 500m SIN Grid MODIS/Terra Snow Cover Daily L3 Global 500m Grid (MOD10A1) contains snow cover and quality assurance (QA) data in HDF-EOS format, along with corresponding metadata. Data files after 14 September 2003 include a snow albedo array with a 'beta' status. MOD10A1 consists of 1200 km by 1200 km tiles of 500 m resolution data gridded in a sinusoidal map projection. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MOD10C1 MODIS/Terra Snow Cover Daily L3 Global 0.05Deg CMG MODIS/Terra Snow Cover Daily L3 Global 0.05Deg CMG (MOD10C1) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MOD10C2 MODIS/Terra Snow Cover 8- Day L3 Global 0.05Deg CMG MODIS/Terra Snow Cover 8-Day L3 Global 0.05Deg CMG (MOD10C2) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests MOD29P1D MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE- Grid Day MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Day (MOD29P1D) contains the following fields: sea ice by reflectance, sea ice by reflectance spatial quality assurance (QA), ice surface temperature (IST), IST spatial QA, sea ice by IST, and combined sea ice in HDF-EOS format, along with corresponding metadata. Version 4 (V004) is the latest version of MODIS data available. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics. MOD29P1N MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE- Grid Night MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Night (MOD29P1N) contains the following fields: ice surface temperature (IST), IST spatial QA, and sea ice by IST in HDF-EOS format, along with corresponding metadata. Version 4 (V004) is the latest version of MODIS data available. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics. MOD29E1D MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day (MOD29E1D) contains the following fields: sea ice by reflectance and ice surface temperature (IST). Each data granule covers the entire globe, with two separate arrays of 4321 x 4321 pixels: one for the Arctic and one for the Antarctic. Data extend from 15 September 2003 to present. Version 4 (V004) is the latest version of MODIS data available from NSIDC. The MODIS sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics.

7. MODIS NSIDC 122205.ppt 7 Aqua MODIS Cryosphere Products Detailed Descriptions ESDTName Detailed description MYD10_L2 MODIS/Aqua Snow Cover 5-Min L2 Swath 500m MODIS/Aqua Snow Cover 5-Min L2 Swath 500m (MYD10_L2) contains snow cover and quality assurance (QA) data, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 500 m resolution. Version 4 (V004), the latest version of MODIS data available, has two separate snow cover fields: one incorporating the original cloud mask, and another using a less cloud-conservative mask. MODIS/Aqua V004 data extend from 04 July 2002 to present. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MYD29 MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km (MYD29) contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice surface temperature (IST), IST pixel QA, sea ice by IST, combined sea ice, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 1 km resolution. Version 4 (V004) MYD29 data, the most current version available, uses Aqua/MODIS band 7 instead of band 6. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics. MYD10A1 MODIS/Aqua Snow Cover Daily L3 Global 500m SIN Grid MODIS/Aqua Snow Cover Daily L3 Global 500m Grid (MYD10A1) contains snow cover and quality assurance (QA) data in HDF-EOS format, along with corresponding metadata. Data files after 14 September 2003 include a snow albedo array with a 'beta' status. MYD10A1 consists of 1200 km by 1200 km tiles of 500 m resolution data gridded in a sinusoidal map projection. MODIS/Aqua V004 data extend from 04 July 2002 to present. A sample of MODIS/Aqua V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests MYD10A2 MODIS/Aqua Snow Cover 8-Day L3 Global 500m SIN Grid MODIS/Aqua Snow Cover 8-Day L3 Global 500m Grid (MYD10A2) contains data fields for maximum snow cover extent over an 8-day compositing period and a chronology of snow occurrence observations in HDF-EOS format, along with corresponding metadata. MYD10A2 consists of 1200 km by 1200 km tiles of 500 m resolution data gridded in a sinusoidal map projection. Data extend from 04 July 2002 to present. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MYD10C1 MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG (MYD10C1) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. Data extend from 04 July 2002 to present. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MYD10C2 MODIS/Aqua Snow Cover 8-Day L3 Global 0.05Deg CMG MODIS/Aqua Snow Cover 8-Day L3 Global 0.05Deg CMG (MYD10C2) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests. MYD29P1D MODIS/Aqua Sea Ice Extent Daily L3 Global 1km EASE-Grid Day MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Day (MOD29P1D) contains the following fields: sea ice by reflectance, sea ice by reflectance spatial quality assurance (QA), ice surface temperature (IST), IST spatial QA, sea ice by IST, and combined sea ice in HDF-EOS format, along with corresponding metadata. Version 4 (V004) is the latest version of MODIS data available. MODIS/Terra V004 data extend from 24 February 2000 to present. A sample of MODIS/Terra V003 data from 29 August 2002 (day 241) through 07 October 2002 (day 280) is available to allow users to correlate between V003 and later versions. This collection also includes several granules that were not reprocessed into V004. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics. MYD29P1N MODIS/Aqua Sea Ice Extent Daily L3 Global 1km EASE-Grid Night The MOD29P1N and MYD29P1N nighttime daily level-3 products contain estimated ice surface temperature (IST) data processed from MODIS thermal data acquired during night mode operation of the sensor. Three scientific data sets (SDS) are stored in the product. The nighttime sea ice product is a tile of data gridded in the Lambert Azimuthal Equal Area map projection. Spatial resolution is approximately 1 km. Tiles are approximately 1200 x 1200 km in area. The Terra sea ice surface temperature data product is validated (stage 2) for the cold season. The Aqua sea ice data products are provisional. MYD29E1D MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE- Grid Day MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day (MOD29E1D) contains the following fields: sea ice by reflectance and ice surface temperature (IST). Each data granule covers the entire globe, with two separate arrays of 4321 x 4321 pixels: one for the Arctic and one for the Antarctic. Data extend from 15 September 2003 to present. Version 4 (V004) is the latest version of MODIS data available from NSIDC. The MODIS sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics.

8. MODIS NSIDC 122205.ppt 8 MODIS Cryosphere Products Volume

9. MODIS NSIDC 122205.ppt 9 Terra MODIS Cryosphere L2 Products ESDTNameDAACDate GA Total AV Total UU Total O Total GD Total DV Total MOD10_L2 MODIS/Terra Snow Cover 5-Min L2 Swath 500m NSIDC2/28/2000373,26511,336.02374,52521,101645.9 MOD29 MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km NSIDC3/8/2000428,9446,682.31313,90513,452230.3

10. MODIS NSIDC 122205.ppt 10 Terra MODIS Cryosphere L3 Products ESDTNameDAACDateGA Total AV Total UU Total O Total GD Total DV Total MOD10A1 MODIS/Terra Snow Cover Daily L3 Global 500m SIN Grid NSIDC3/8/2000699,1728,664.335716,323274,2023,797.2 MOD10A2 MODIS/Terra Snow Cover 8-Day L3 Global 500m SIN Grid NSIDC3/17/200089,058948.83139,586165,1831,966.4 MOD10C1 MODIS/Terra Snow Cover Daily L3 Global 0.05Deg CMG NSIDC2/26/20022,075197.610454617,2781,684.7 MOD10C2 MODIS/Terra Snow Cover 8-Day L3 Global 0.05Deg CMG NSIDC4/3/200226725.41002113,707360.3 MOD29P1D MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Day NSIDC3/7/2000495,2382,919.49420715,009153.8 MOD29P1N MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Night NSIDC3/7/2000498,3941,691.422321,3399.3 MOD29E1D MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day NSIDC9/30/200377477.6152760062.7

11. MODIS NSIDC 122205.ppt 11 Aqua MODIS Cryosphere L2 Products ESDTNameDAACDate GA Total AV Total UU Total O Total GD Total DV Total MYD10_L2 MODIS/Aqua Snow Cover 5-Min L2 Swath 500m NSIDC6/26/2002287,8318,691.6656,55710,832345.5 MYD29 MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km NSIDC6/26/2002315,7324,927.7263,8214,15474.3

12. MODIS NSIDC 122205.ppt 12 Aqua MODIS Cryosphere L3 Products ESDTNameDAACDate GA Total AV Total UU Total O Total GD Total DV Total MYD10A1 MODIS/Aqua Snow Cover Daily L3 Global 500m SIN Grid NSIDC6/26/2002535,3007,904.73959016,254263.8 MYD10A2 MODIS/Aqua Snow Cover 8-Day L3 Global 500m SIN Grid NSIDC7/22/200267,373727.532466,78273.6 MYD29E1D MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day NSIDC9/30/20031,341140.1175464967.8 MYD29P1D MODIS/Aqua Sea Ice Extent Daily L3 Global 1km EASE-Grid Day NSIDC6/26/2002356,9322,130.017272991.8 MYD10C2 MODIS/Aqua Snow Cover 8-Day L3 Global 0.05Deg CMG NSIDC9/8/200222021.3151847545.9 MYD10C1 MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG NSIDC10/22/20021,731167.314302,045197.9 MYD29P1N MODIS/Aqua Sea Ice Extent Daily L3 Global 1km EASE-Grid Night NSIDC6/26/2002357,4311,227.2110.0

13. MODIS NSIDC 122205.ppt 13 Number of Distinct Users for MODIS Cryosphere L2, L3 Products Low Archive High Utilization Low Archive Low Utilization High Archive High Utilization High Archive Low Utilization MOD = Terra MODIS MYD = Aqua MODIS

14. MODIS NSIDC 122205.ppt 14 Comparison of Distributed vs. Archived Volume for MODIS Cryosphere L2, L3 Products Distributed < 100 % of archive total Distributed < 10% of archive total Distributed > 100% of archive total Distributed < 1% of archive total MOD = Terra MODIS MYD = Aqua MODIS

15. MODIS NSIDC 122205.ppt 15 Number of Orders for MODIS Cryosphere L2, L3 Products MOD = Terra MODIS MYD = Aqua MODIS

16. MODIS NSIDC 122205.ppt 16 Sample Product profiles by FY MOD = Terra MODIS MYD = Aqua MODIS

17. MODIS NSIDC 122205.ppt 17 Sample Data Pool Product Profiles by FY MOD = Terra MODIS MYD = Aqua MODIS