AMSR-E Cryosphere Science Data Product Metrics Prepared by the ESDIS SOO Metrics Team for the Cryosphere Science Data Review January 11-12, 2006

AMSR-E Cryosphere Science Data Product Metrics

Prepared by the ESDIS SOO Metrics Team for the Cryosphere Science Data Review

January 11-12, 2006

AMSR-E 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


ECS Product Data Metrics Summary

Field Definition Acronym

ESDT Earth Science Data Type -- product mnemonic

ESDT Name Description

DAAC Archive center

Level Product processing level

Discipline A primary, scientific application area for which a product is used

Granules Archived Total granules stored as of 09/30//2005 and granules archived per FY GA

Archive Volume Total 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 total DV

Distribution Granules per ESDT per FY & Total Number of granules of the product distributed within a FY plus the five year total DG

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 total O

Production flag Indicates this product is used to produce other products or for QA testing

Product Dates Archive Date, Product Release Date, Discontinued Date

Comment Used sparingly, provides qualitative guidance to help understand product


Sample Science Data Product ReviewCharts 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• Same as above

– Scatter plots (3) of ESDTs by demand and distribution parameters

– Sample time profiles• Archive, distribution, users and orders by FY• Data pool distribution


Summary Table of AMSR-E Cryosphere Data Products

Products L0 L1A L2 L3 Total

# of Products (ESDTs) 1 1 1 6 9

Min # of Unique End Users Requesting an ESDT

16 37 198 12

Max # of Unique End Users Requesting an ESDT

16 37 198 48


AMSR-E Cryosphere Products Detailed Descriptions

ESDT Name Detailed Description

AE_L2A

AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (Tb)

The AMSR-E Level-2A product contains brightness temperatures (TBs) at 6.9 GHz, 10.7 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, and 89.0 GHz. Data are resampled to be spatially consistent, and therefore are available at a variety of resolutions that correspond to the footprint sizes of the observations (56 km, 38 km, 24 km, 21 km, 12 km, and 5.4 km, respectively). Each swath is packaged with associated geolocation fields. Data are stored in HDF-EOS format.

AE_DYSNOAMSR-E/Aqua Daily L3 Global Snow Water Equivalent EASE-Grids

The AMSR-E Level-3 daily snow water equivalent (SWE) data set contains SWE data and quality assurance flags mapped to Northern and Southern Hemisphere 25 km Equal-Area Scalable Earth Grids (EASE-Grids). Data are stored in HDF-EOS format.

AE_SI12

AMSR-E/Aqua Daily L3 12.5 km Tb, Sea Ice Conc., and Snow Depth Polar Grids

The AMSR-E Level-3 gridded sea ice product includes brightness temperatures (TBs) at 18.7 through 89.0 GHz, sea ice concentration, and snow depth over sea ice. Data are mapped to a polar stereographic grid at 12.5 km spatial resolution. Sea ice concentration and TBs include daily ascending averages, daily descending averages, and daily averages; snow depth over sea ice data is a five-day running average. Data are stored in HDF-EOS format.

AE_SI25

AMSR-E/Aqua Daily L3 25 km Tb, Sea Ice Temperature, and Sea Ice Conc. Polar Grids

The AMSR-E Level-3 gridded sea ice product includes brightness temperatures (TBs) at 18.7 through 89.0 GHz, sea ice concentration, and snow depth over sea ice. Data are mapped to a polar stereographic grid at 12.5 km spatial resolution. Sea ice concentration and TBs include daily ascending averages, daily descending averages, and daily averages; snow depth over sea ice data is a five-day running average. Data are stored in HDF-EOS format

AE_SI6

AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature (Tb) Polar Grids

The AMSR-E Level-3 gridded 89.0 GHz brightness temperature (TB) product at 6.25 km resolution is an intermediate product during processing of AMSR-E Level-3 sea ice products at 12.5 km and 25 km resolution. Values are daily average, daily ascending, and daily descending horizontally and vertically polarized TBs mapped to a polar stereographic grid at 6.25 km spatial resolution. Data are stored in HDF-EOS format.

AE_5DSNOAMSR-E/Aqua 5-Day L3 Global Snow Water Equivalent EASE-Grids

The AMSR-E Level-3 5-day snow water equivalent (SWE) data set contains SWE data and quality assurance flags mapped to Northern and Southern Hemisphere 25 km Equal-Area Scalable Earth Grids (EASE-Grids). Data are stored in HDF-EOS format.

AE_MOSNO AMSR-E/Aqua Monthly L3 Global Snow Water Equivalent EASE-Grids

The AMSR-E Level-3 monthly snow water equivalent (SWE) data set contains SWE data and quality assurance flags mapped to Northern and Southern Hemisphere 25 km Equal-Area Scalable Earth Grids (EASE-Grids). Data are stored in HDF-EOS format.


AMSR-E Cryosphere Products Volume

Placeholder for Archive Volume by Level column chart


AMSR-E Cryosphere L2 Products

ESDT Name DAAC DateGA

TotalAV

TotalUU

TotalO

TotalGD

TotalDV Total

AE_L2AAMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (Tb)

NSIDC 8/20/2002 35,328 2,705.1 198 10,227 240,412 18,411.8


AMSR-E Cryosphere L3 Products

ESDT Name DAAC DateGA

TotalAV

TotalUU

TotalO

TotalGD

TotalDV

Total

AE_DYSNOAMSR-E/Aqua Daily L3 Global Snow Water Equivalent EASE-Grids

NSIDC 5/27/2003 1,171 2.3 48 561 8,633 17.7

AE_SI12AMSR-E/Aqua Daily L3 12.5 km Tb, Sea Ice Conc., and Snow Depth Polar Grids

NSIDC 5/12/2004 1,172 65.7 46 300 9,353 525.2

AE_SI25AMSR-E/Aqua Daily L3 25 km Tb, Sea Ice Temperature, and Sea Ice Conc. Polar Grids

NSIDC 5/12/2004 1,172 24.7 39 56 6,221 131.2

AE_SI6AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature (Tb) Polar Grids

NSIDC 5/12/2004 1,172 50.7 24 75 5,556 240.5

AE_5DSNOAMSR-E/Aqua 5-Day L3 Global Snow Water Equivalent EASE-Grids

NSIDC 5/12/2004 228 0.5 18 32 694 1.4

AE_MOSNOAMSR-E/Aqua Monthly L3 Global Snow Water Equivalent EASE-Grids

NSIDC 5/13/2004 39 0.1 12 18 256 0.5


Number of Distinct Users for AMSR-E Cryosphere L2,3 Products

Low ArchiveHigh Utilization

Low ArchiveLow Utilization

High ArchiveHigh Utilization

High ArchiveLow Utilization


Comparison of Distributed vs. Archived Volumefor AMSR-E Cryosphere Products

Distributed< 100 % of

archive total

Distributed> 100% of

archive total


Number of Orders for AMSR-E Cryosphere Lx Products


AMSR-E L3 CryosphereProduct Profiles by FY

Granules Archived

0

200

400

600

800

FY00 FY01 FY02 FY03 FY04 FY05

AE_5DSNO AE_DYSNO AE_MOSNO

AE_SI12 AE_SI25 AE_SI6

Archive Volume (GB)

0.00

10.00

20.00

30.00

40.00




Unique Users

0

10

20

30

40




Unknown Users

0

1

2

3

4




Number of Orders

0

200

400

600




Granules Distributed

02,0004,0006,0008,000

10,000




Distribution Volume (GB)

0.0

200.0

400.0

600.0





AMSR-E L3 CryosphereProduct Profiles by FY for Data Pool

Unique IP Addresses

0

20

40

60

FY03 FY04 FY05



# of Granules Distributed

0

1,000

2,000

3,000

4,000

FY03 FY04 FY05



Volume (GB) Distributed

0.0

50.0

100.0

150.0

FY03 FY04 FY05



Documents

AMSR-E Cryosphere Science Data Product Metrics Prepared by the ESDIS SOO Metrics Team for the Cryosphere Science Data Review January 11-12, 2006