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Overview (2) User Support GHRC User Services Office National Space Science and Technology Center NRT versus Standard Product Comparison Currently the LANCE Level-2A processing algorithm is one version behind SIPS standard products algorithm. We are planning a two-pronged approach for the product comparisons: a pixel-by-pixel comparison of each of the variables of interest in the Level-2 products, with differences binned and displayed on histograms. for the Level-3 products, we are planning to create standard and NRT images plus a “difference image” for each of the variables of interest. 3LANCE UWG Meeting College Park, MD
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LANCE AMSR-E Status
Helen Conover, UAHuntsville, [email protected]
Kathryn Regner, UAHuntsville, [email protected]
LANCE User Working Group MeetingNovember 16, 2010
OverviewThe Advanced Microwave Scanning radiometer – Earth Observing System (AMSR-E) is a passive microwave radiometer built by the Japan Aerospace Exploration Agency and launched aboard Aqua on 4 May 2002. Summary of Products
AMSR-E is designed to detect water in all its state phases in the environment and monitor the water processes that exert a strong influence on climate and weather.
Products generated include Brightness Temperatures, Rain Rate, Soil Moisture, Ocean Products, Snow Water Equivalent, Sea Ice
Redundancy Status Two independent strings of equipment, one located at the
National Space Science and Technology Center and the other at the Olin B. King Technology Hall. Both strings are located on the UAHuntsville campus and managed by SIPS personnel, but are connected to different networks.
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Overview (2) User Support
GHRC User Services OfficeNational Space Science and Technology Center256-961-7932 [email protected]
NRT versus Standard Product Comparison Currently the LANCE Level-2A processing algorithm is
one version behind SIPS standard products algorithm. We are planning a two-pronged approach for the
product comparisons: a pixel-by-pixel comparison of each of the variables of
interest in the Level-2 products, with differences binned and displayed on histograms.
for the Level-3 products, we are planning to create standard and NRT images plus a “difference image” for each of the variables of interest.
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System Latency Metrics
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L2A Brightness Temperatures Latency for the last 30 daysNumber of files produced: 903
L2B Products (land, ocean, rain) Latency for the last 30 days Number of files produced: 2709
Data latency requirement = < 3 hrsProcessing latency requirement = < 20 minutes
Latency to data product Minimum Maximum Average Late From first observation 1:18:17 4:57:15 2:24:02 156 (17.3%)
From last observation 28:52 4:07:50 1:34:37 5 ( 0.6%)
From data arrival at SIPS 2:47 10:29 3:53 0 ( 0.0%)
Latency to data product Minimum Maximum Average Late
From last observation 29:35 4:10:41 1:36:03 15 ( 0.6%) From first observation 1:19:00 5:00:06 2:25:28 559 (20.6%)
From data arrival at SIPS 3:30 12:32 5:20 0 ( 0.0%)
System Access Metrics
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Timeframe #Files Volume
09/27-30/2010 2 0.02 GB10/01-31/2010 498 12.36 GB11/01-14/2010 1314 42.61 GB
Information extracted from 2010-11-15 User Registration System (URS) Reports
Number of Users Country Affiliation1 Brazil Education1 Italy Government1 United Kingdom Government1
United StatesCommercial
3 Government3 Education
Total: 10
User Characterization
Product Distribution Summary
Changes Since December 2009 In March 2010, the AMSR-E SIPS was tasked to transition the AMSR-E
processing from the MODIS systems at GSFC to the SIPS in Huntsville. Work started in April. First string of hardware began operations on September 27th . Redundant second string of equipment began operations on November
1st. Both strings include authentication via ESDIS User Registration System,
logging statistics into the ESDIS Metrics System, local and LANCE-central web pages, publicly accessible FTP servers and data access via web interfaces.
New Products Added: Level-3 daily land, ocean, sea ice and snow Planned System Upgrades:
Integration of Remote Sensing System’s (RSS) new Level-2A algorithm, designed and implemented specifically for near real-time processing, is planned for December 2010.
Currently implementing subscription service Currently analyzing system failover options Coding of NRT versus standard product comparison is in progress
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Discussion: Potential Upgrades – LANCE AMSR-E
Is there a need for providing data in BUFR format? SIPS discussed this with a user at the A-Train poster session (Sabatino Di
Michele, ECMWF). He currently gets AMSR-E data in this format from the NOAA NRTPE system.
Is there an interest in incremental daily products? Create partial daily products products several times per day from available
L2 data. This would decrease data latency for Snow and Sea Ice products. Is there an interest in subsetting AMSR-E data?
Currently providing this capability at the SIPS for AMSR-E science and validation teams. This capability is very popular for users seeking data and/or imagery in low bandwidth situations, e.g., during remote field campaign support.
Is there interest in running the AMSR-E data through the MODIS Rapid Response System?
Gallery of images, side-by-side with other element imagery, on the LANCE Central website. Candidate products: 89 GHz Tbs, Instantaneous Rain Rate, Surface Soil Moisture, Daily Sea Ice Extent (concentration). Candidate usage might be for first responders and disaster detection.
Is there a need for near real-time browse imagery? Native swath projection or gridded?
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Backup Slides
Background Material Data Flow Comparison of “First Ob/Last Ob” Latency Product List Redundancy Architecture Drawings Client Affiliation and Applications
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AMSR-E Data Flows
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Comparison of “First Observation versus Last Observation” Latency
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Data Set Short Name
Data Set Long Name Sample Imagery
AE_L2A_NRT NRT AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (Tb)
AE_Ocean_NRT NRT AMSR-E/Aqua L2B Global Swath Ocean Products derived from Wentz Algorithm
AE_Land_NRT NRT AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids
AE_Rain_NRT NRT AMSR-E/Aqua L2B Global Swath Rain Rate/Type GSFC Profiling Algorithm
AE_Land3_NRT NRT AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parms, & QC EASE-Grids
LANCE AMSR-E Products
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AE_DyOcn_NRT NRT AMSR-E/Aqua Daily L3 Ascending/Descending .25x.25 deg Ocean Grids
AE_DySno_NRT NRT AMSR-E/Aqua Daily L3 Global Snow Water Equivalent EASE-Grids
AE_SI6_NRT NRT AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature (Tb) Polar Grids
AE_SI12_NRT NRT AMSR-E/Aqua Daily L3 12.5 km Tb, Sea Ice Conc., & Snow Depth Polar Grids
AE_SI25_NRT NRT AMSR-E/Aqua Daily L3 25 km Tb and Sea Ice Concentration Polar Grids
LANCE AMSR-E Products (Continued)
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System Redundancy (1)
System Redundancy (2)
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LANCE AMSR-E User Affiliation
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Information extracted from the 2010-11-15 User Registration System (URS) Report
FirstName LastName Country AffiliationTom De Groeve Italy GovermentDavid Hebert United States GovermentFrank LaFontaine United States CommercialBruce McKenzie United States GovermentYaswant Pradhan United Kingdom GovermentMark Schwab United States EducationJoao Trindade Brazil EducationJoe Turk United States GovermentKungHwa Wang United States EducationAnthony Wimmers United States Education
LANCE AMSR-E Product Distribution
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16Information extracted from the 2010-11-15 User Registration System (URS) Report By Product
Month Username Product Files MBs10-Sep kwang127 AE_RAIN_NRT 2 21.18810-Oct daveh150 AE_L2A_NRT 2 89.72410-Oct daveh150 AE_SI12_NRT 15 890.81510-Oct flafonta AE_OCEAN_NRT 45 550.15410-Oct flafonta AE_RAIN_NRT 52 550.17910-Oct getice AE_SI12_NRT 5 296.93810-Oct joaotrindade AE_LAND3_NRT 1 61.91910-Oct joaotrindade AE_L2A_NRT 1 46.12310-Oct jturk AE_L2A_NRT 172 7700.85710-Oct schwabm AE_SI25_NRT 1 0.41310-Oct wimmers AE_OCEAN_NRT 202 2469.42110-Oct yaswant AE_LAND_NRT 2 1.02110-Nov daveh150 AE_OCEAN_NRT 2 12.20910-Nov daveh150 AE_SI6_NRT 1 44.31910-Nov daveh150 AE_SI25_NRT 1 19.57210-Nov daveh150 AE_LAND_NRT 1 0.84110-Nov daveh150 AE_SI12_NRT 4 59.39610-Nov daveh150 AE_L2A_NRT 1 45.61110-Nov degroeve AE_L2A_NRT 489 21679.70410-Nov flafonta AE_DYSNO_NRT 2 4.11310-Nov flafonta AE_RAIN_NRT 43 455.06510-Nov flafonta AE_OCEAN_NRT 43 525.69610-Nov jturk AE_L2A_NRT 363 16339.1710-Nov wimmers AE_OCEAN_NRT 364 4449.546 Totals 1814 54.99 GB
