National Ice Center National Ice Center Synthetic Aperture Radar Synthetic Aperture Radar

(SAR) Usage(SAR) Usage

Ms. Sharolyn YoungMs. Sharolyn YoungNOAA/ NESDIS/ NICNOAA/ NESDIS/ NIC

August 15, 2007

NATIONAL ICE CENTER

The Nation’s Single Inter-agency forThe Nation’s Single Inter-agency forOperational Ice Analysis and ForecastingOperational Ice Analysis and Forecasting

Navy-NOAA-USCG MOA Annex II (NAVICE-NESDIS-USCG)Formation of National Ice Center 1995Annex II Update Signed 21July 2005

Vision:Vision:

Center of excellence in global ice meteorology and oceanographic services.Center of excellence in global ice meteorology and oceanographic services.

Mission: Mission: To provide the highest quality strategic and tactical ice services tailored to meet the To provide the highest quality strategic and tactical ice services tailored to meet the operational requirements of U.S. national interests. To provide specialized operational requirements of U.S. national interests. To provide specialized meteorological and oceanographic services to U.S. government agencies.meteorological and oceanographic services to U.S. government agencies.

NATIONAL ICE CENTER

Access to Commercial SAR Data

• At present, the following SAR mission can potentially supply the demand of data currently used to fulfill US government requirements.

- All SAR data provided to the US from international missions:

Canadian RADARSAT-1

European Space Agency’s Envisat ASAR

Japanese ALOS PALSAR

• SAR is the only sensor with required combination of:

Aerial Coverage (global)

High Resolution

Cloud Discerning (Arctic & cold regions are cloud covered 75-80 % of typical winter season)

• NOAA/NIC MAJOR CONCERN & PRIORITY:

Insuring continued affordable access to SAR data.

Support NOAA’s Support NOAA’s Mission GoalsMission Goals

Goal (4) Goal (4) Support the Nation’s Commerce with Information for Safe, Efficient and Environmentally Support the Nation’s Commerce with Information for Safe, Efficient and Environmentally Sound TransportationSound Transportation - NIC ice nowcast and forecast information support vital civilian and military shipping in waters that contain navigational ice hazards.

Goal (3) Goal (3) Serve society’s need for weather and water information. - Products provides real-time ice nowcast to improve accuracy of NWS weather prediction model outputs

Goal (2) Understand Climate Variability and Change to Enhance Society’s Ability to Plan and Respond - Polar research activities contribute to better understanding of cryosphere and oceans

SAR Data RequirementsSAR Data Requirements

Support NAVY Operational Mission Requirements:• SUBFORCE letter 21 SEP 05 (validated by CFFC)

• Daily Ice edge/Marginal Ice Zone • Fractures, Leads, Polynyas• Ice thickness twice per week

• Office of Naval Intelligence • Request for classified products• Current and expected ice conditions in harbors• Ice thickness and icebreaking rqmnts in harbors

• Navy Atlantic METOC Center letter 05 SEP 03 (OTSR Support)• Route specific ice edge information, iceberg position

Support USCG Icebreaking Missions:

•DISTRICT 5 AND 9 MOA’S• International Ice Patrol•Ches/Del Bay, Great Lakes icebreaking operations•* Ice Impacts On Safety Of Life And Commerce At Sea

SAR Requirements (con’t)SAR Requirements (con’t)

FY07 Access to SAR DataFY07 Access to SAR Data

RADARSAT-1 (R-1)• Received by U.S. Government (USG) under NASA/NOAA/Canadian Space Agency (CSA) MOU

Under this MOU:• R-1 data currently being received over Western Arctic and processed at Alaska Satellite Facility

(ASF) for an annual fee of $185K.

• SAR over Great Lakes area received from CSA in exchange for SAR over Alaska Region.

• Images over all other NIC AOR’s (Eastern Arctic, Antarctic)

• Currently 90% of Navy SAR requirements now met via NGA funding.

CONCERNS:

1) RADARSAT-1 MOU extension will expire upon launch & checkout of RADARSAT-2 (est. launch is the 3rd Qtr of CY2007 + 3 months checkout) or November 2007.

2) R-2 is a commercial mission and currently NOAA/Navy expected to pay commercial rates for data beginning FY08 & beyond. (est. $2000.00 per scene)

Planned (FY08) Access to SAR DataPlanned (FY08) Access to SAR Data

Japanese Advanced Land Observing Satellite (ALOS ) PALSAR Data

• NOAA/JAXA (Japan Aerospace Exploration Agency) /ASF Agreements

- JAXA/ASF/NESDIS MOU: ASF will process and provide 1800 NRT SAR imagers/yr within Alaska station mask

• NASA/NOAA/JAXA/ASF Agreement- NOAA/JAXA MOU designates ASF as the Americas Data Node

• U.S. Government PALSAR Data Consortium - JAXA authorized distribution of ALOS data through regional nodes

- ASF Station mask to offer NRT processed data @ $125 per scene

- US government PALSAR data consortium could lower cost and enable sharing of data amongst government agencies and sponsored researchers.

-  A shared cost of $450K/yr for 11,000 scenes/yr would cost about $41/scene (compared to $125/scene).

- A shared NOAA partnership investment could enable cost effective purchase additional Alaska data, Great Lakes and other NIC SAR required data.

Concerns:Although data becomes operational in 2007, it is still uncertain how accurate L-band data will be for winter ice imaging

Proposed Initiatives for Future SAR AccessProposed Initiatives for Future SAR Access

RADARSAT-1 (R-1)

• The Canadian Space Agency (CSA) has approved funding to extend operation of the RADARSAT-1 (R-1) satellite throughout the International Polar Year (IPY) to March 2009Concern: For Research use only

• Craig Dobson (NASA) and Eric Madsen (NOAA) currently pursuing a R-1 Extension Agreement with CSA which addresses USA contribution (downlink and ground station assets) for the continued operating of R-1 through IPY. ISSUE: Basic language designates Non-Operational use only

• Announcements of Opportunities/Demo Projects - Work on International Cooperative Agreements to Acquire Data from Future SAR Satellites

- Federal Government/Private Industry Ventures - NOAA PartnershipsIssue: No guaranteed operational Data obtained without additional investment funds

FY 06 RS-1 Data Use FY 06 RS-1 Data Use viavia

RadarSat-1 MOU RadarSat-1 MOU

8875

17

2006 Total: 8922 SCW Frames2006 Total: 8922 SCW Frames

Gatineau, Canada for NSF

Fairbanks, Alaska

350

Gatineau, Canada thru CIS and NOAAExchange Agreement (Great Lakes Region)

FY 07 RS-1 Data Use (Naval Ice Center mission)FY 07 RS-1 Data Use (Naval Ice Center mission)Via Via

NGA*NGA*

2831 313

2006 Total: 3144 SCW Frames2006 Total: 3144 SCW Frames

Gatineau, CanadaTromso, Norway

*NGA funded for images to cover of the East Arctic, Greenland, Yellow Sea, Sea of Okhotsk, and Sea of JapanTotal Funding:FY 07 (June 2006 – August 2007) - $5.8FY08 (September 2007 – August 2008) - $8.2

NIC SAR UsageNIC SAR Usage

Focused Area Analyses Fixed locations such as ports, harbors, river mouths, channels and sounds

Large Area Analysis Global Ice monitoring for maritime and land-based operations, transits, and search

and rescue operations Area Mapping

SAR is beneficial for ice climatology, which can be added to area maps Area Feature & Surface Type Identification

In Polar areas, ice can be present on a permanent, seasonal or temporary scale Ice can affect the availability of piers, channels and freeways Fast ice and large ice floes can also be used tactically as roads or landing sites

Flood Assessment & Mitigation Support Ice can cause "ice jams" that effectively dam rivers and cause flooding

SAR UsageSAR Usage

Sea ice, Iceberg & Obstacle Detection Sea ice analysis and forecasting is critical to submarine, icebreaking, ice transiting,

and on-ice operations Sea ice monitoring on a regular basis provides a database for climatology studies

Pollution Assessment & Mitigation Support SAR is capable of detecting pollution events such as oil spills or large scale oil dumps

in the open ocean

NIC SAR Imaging RequirementsNIC SAR Imaging Requirements

NIC uses primarily ScanSAR Wide for scale analysis. Occasionally, the NIC requires higher resolution imagery for tactical scale analysis and Iceberg detection. The examples below are based on Radarsat 1 specifications:

ScanSAR Wide 100 meter nominal spatial resolution 500 X 500 km swath width

ScanSAR Narrow 50 meter nominal spatial resolution 300 X 300 km swath width

Standard 30 meter nominal spatial resolution 100 X 100 km swath width

Wide 30 meter nominal spatial resolution 300 X 300 km swath width

Questions?Questions?