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WMO Snow Watch Team – Second Session June 2016

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Presentation on theme: "WMO Snow Watch Team – Second Session June 2016"— Presentation transcript:

1 WMO Snow Watch Team – Second Session 13-14 June 2016
Program Logo Snow Data at NSIDC WMO Snow Watch Team – Second Session June 2016

2 NSIDC affiliations and sponsorship
nsidc.org Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder

3 The NSIDC Mission Manages and distributes scientific data Provides
tools for data access Researches the cryosphere and data science Supports local and traditional knowledge Images: Column 1, top: The Moderate Resolution Imaging Spectroradiometer (MODIS), on the NASA Terra satellite, captured this image after a major snowstorm over the northeastern U.S., on October 30, 2011. Column 1, center: The research vessel Aurora Australis navigates through a field of pancake ice near Antarctica. Column 1, bottom: Researchers collecting snow data in the Alaskan Arctic discuss their next move. Column 2, top: An interactive mapping tool helps researchers locate the flight paths of Operation IceBridge airborne instruments and access the data. Column 2, center: Scientists work with community members in Clyde River, Nunavut, Canada. Column 3, bottom: Arctic Sea Ice News & Analysis shares science and data on this critical climate indicator with a broad audience. Slide updated 10/31/2012 Educates the public about the cryosphere Supports data users

4 VIS/IR Moderate Resolution Satellite & Airborne Altimetry
NSIDC Distributed Active Archive Center (DAAC) nsidc.org Data from NASA's past and current Earth Observing System (EOS) satellites and other satellite and field measurement programs. Passive Microwave VIS/IR Moderate Resolution Satellite & Airborne Altimetry AMSR-E (Aqua) AMSR2 Aquarius Soil Moisture SMAP SMMR (Nimbus 7) SSM/I, SSMIS MODIS (Terra/Aqua) snow and ice products AVHRR polar data VIIRS ICESat ICESat-2 Operation IceBridge AMSR-E 12.5 km Sea Ice Concentration MODIS Monthly Global Snow Cover IceBridge ATM Qfit Data on Landsat Image

5 Snow data at NSIDC spans
METHOD COVERAGE

6 Global Snow Extent MODIS/VIIRS NASA Products Version 6 update:
TEMPORAL COVERAGE (Terra) (Aqua) to present Suomi NPP SPATIAL COVERAGE Global SPATIAL RESOLUTION 500 m 5 km TEMPORAL RESOLUTION 5-minute Daily 8-day Monthly PROJECTION Equal-area sinusoidal UPDATE FREQUENCY MODIS/VIIRS NASA Products Version 6 update: Incorporates a Quantitative Image Restoration (QIR) technique that restores Aqua MODIS band 6 data to scientific quality. Provides Normalized Difference Snow Index (NDSI). Product suite being implemented for VIIRS Hall, D. K. and G. A. Riggs

7 Global Snow Extent Near-real-time SSMI/SSMIS (NISE)
Current efforts to transition from F-17 to F-18 Nolin, A. W., R. Armstrong, and J. Maslanik TEMPORAL COVERAGE to present SPATIAL COVERAGE Global SPATIAL RESOLUTION 25 km TEMPORAL RESOLUTION Daily PROJECTION EASE-Grid UDPATED FREQUENCY

8 Northern Hemisphere Snow Extent
Weekly Snow Cover (NSIDC-0046) Snow cover extent based on the NOAA/NCDC CDR of NH Snow Cover Extent by D. Robinson based on AVHRR, GOES and other VIS band Anticipating an update next month Brodzik, M. and R. Armstrong. TEMPORAL COVERAGE 3 Oct 1966 to 29 Jun 2014 SPATIAL COVERAGE Northern Hemisphere SPATIAL RESOLUTION 25 km TEMPORAL RESOLUTION Weekly PROJECTION EASE-Grid 2 UDPATED FREQUENCY Quarterly

9 Northern Hemisphere Snow Extent
NASA MEaSUREs Snow Products (NSIDC-0530, NSIDC-0534, NSIDC-0535) Robinson, D., M. R. Anderson, T. W. Estilow, D. K. Hall, and T. L. Mote IMS Daily Northern Hemisphere Snow and Ice Analysis (g02156) National Ice Center TEMPORAL COVERAGE 1979 (weekly) (daily) to 2012 SPATIAL RESOLUTION 25 km 100 km TEMPORAL RESOLUTION Daily Weekly PROJECTION EASE-Grid 2 UDPATE FREQUENCY N/A TEMPORAL COVERAGE 4 Feb 1997 to present SPATIAL RESOLUTION 1 km 4 km 24 km TEMPORAL RESOLUTION Daily PROJECTION Polar Stereo UDPATE FREQUENCY

10 Global SWE AMSR NASA Products Current AMSR-E is “NASA standard”
Unified AMSR-E/AMSR2 data product in development will use “NASA Prototype” M. Tedesco, R. Kelly TEMPORAL COVERAGE AMSR-E 19 Jun 2002 to 1 Oct 2011 AMSR2 to present SPATIAL RESOLUTION 25 km TEMPORAL RESOLUTION Daily 5-day Monthly PROJECTION EASE-Grid UPDATE FREQUENCY Daily (AMSR2) AMSR2 SWE for 1 Apr 2016 in Worldview

11 Northern Hemisphere SWE
CanSISE Observation-Based Ensemble (NSIDC-0668) Based on five component SWE products: GlobSnow, ERA-Interim/Land, MERRA, Crocus, and GLDAS Mudryk, L. R. and C. Derksen CMC Daily Snow Depth Analysis (NSIDC-0477) Being discontinued Brown, R. D. and B. Brasnett TEMPORAL COVERAGE 1 Aug 1998 to 31 Dec 2015 SPATIAL RESOLUTION 24 KM TEMPORAL RESOLUTION Weekly PROJECTION Polar stereo UDPATED FREQUENCY Annually TEMPORAL COVERAGE 1 Jan 1981 to 21 Dec 2010 SPATIAL RESOLUTION 25 KM TEMPORAL RESOLUTION Daily PROJECTION Lat/Lon UDPATED FREQUENCY TBD (Annually?)

12 Regional Snow Products
SNODAS Snow Cover Modeling and data assimilation system developed by NOHRSC CLPX Comprehensive set of airborne and in situ measurements from intensive campaign periods TEMPORAL COVERAGE 28 Sep 2003 to present SPATIAL RESOLUTION 1 KM TEMPORAL RESOLUTION Daily PROJECTION Geographic UDPATED FREQUENCY TEMPORAL COVERAGE SPATIAL RESOLUTION Varies TEMPORAL RESOLUTION PROJECTION UDPATED FREQUENCY N/A

13 Future products NASA SnowEx NASA Airborne Snow Observatory (ASO)
SWE and snow albedo Western US watershed basins T. Painter NASA SnowEx Multi-year, multi-sensor airborne snow campaigns E. Kim, D. Hall, J. Entin

14 Discoverability - Accessibility - Usability
NSIDC Scientific Data Search Tool for identifying and comparing snow products Includes “brokered” products – those not in the NSIDC archive (e.g., GlobSnow) Quick links to data, documentation and advanced services

15 Discoverability - Accessibility - Usability
Full resolution imagery for data exploration MODIS Snow, AMSR-E/AMSR2 SWE Under development: NISE, MEaSUREs Footer here. Sample content: tagline, conference title, presentation title, etc.

16 Discoverability - Accessibility - Usability
Data preparation, harmonization and reduction services offered for many products Subsetting Reformatting Reprojection Collaborating with the LP DAAC to include MODIS snow products in Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) Times series for points and polygons

17 Issues, Gaps, GCW Priorities and Contributions
Product interoperability Heterogeneous data formats, projections, metadata content/completeness Appropriate presentation of product “fitness for use” Role of a data center in classifying quality, strengths/weakness, errors, caveats? Sustainment of data production is funding dependent All NSIDC activities are agency supported NSIDC DAAC can provide services and data accession for select non-NASA products but is limited contractually

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