Virtual Alaska Weather Symposia

  1. Speaker: Ivan Csiszar, NOAA/NESDIS Center for Satellite Applications and Research

    The Visible Infrared Imaging Spectroradiometer Suite (VIIRS) sensor on board the Joint Polar Satellite System (JPSS) series provides high quality radiometric measurements to enable detection and characterization of active fires. The current primary baseline NOAA operational product includes fire detection and fire radiative power (FRP) at 375m nadir resolution. VIIRS active fire data are generated globally by NOAA’s ground system and the algorithm is also available to process direct broadcast data. The product has been used to detect and monitor fire occurrence, and to serve as input to various fire-related modeling applications. This seminar will include a summary of algorithm principles, the history of the evolution of the product, current status and plans for future improvements, and examples of key applications.

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  2. Webinar link: uaf-accap.org/event/mar-2022-vaws/
    Speaker: Eugene Petrescu, National Weather Service

    Sea ice models have shown significant improvements over the past decade as targeted research to better understand physical processes related to sea ice evolution were incorporated into the models. This has been driven by the rapid changes in sea ice and the impacts on communities and transportation activities in the Arctic. This is also increasing the need for expanded and improved sea ice forecasting capabilities from the US National Ice Center (USNIC) and the Alaska Sea Ice Program (ASIP). Historically due to lack of operational sea ice guidance on both short and long time scales, sea ice forecasts were a rather manual process based largely upon analogs. With new operational models and improving ice guidance, the ice centers wanted to see how this information could be leveraged to improve sea ice forecasts and potentially expand sea ice services in the future. A Sea Ice Guidance Evaluation Project led by the Arctic Testbed and Proving Ground was initiated to help answer some of these questions and to facilitate feedback between the ice centers and the sea ice modeling community to further improve the guidance. An overview of the project will be presented.

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  3. Speakers: Dr. Jingqiu Mao, University of Alaska Fairbanks Geophysical Institute; Dr. Peter DeCarlo, Johns Hopkins University; Dr. Kathy Law, Laboratoire Atmospheres, Milieux, Observations Spatiales (LATMOS), University of Versailles; Dr. Jochen Stutz, University of California Los Angeles

    This presentation will provide a brief introduction to the Alaskan Layered Pollution and Chemical Analysis (ALPACA) project, currently taking place in Fairbanks, Alaska. Speakers will introduce several major field sites and the project’s goals of improving understanding of how pollution behaves in cold and dark conditions and how the layered atmosphere affects pollution events.

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  4. Speaker: Caleb Cravens, National Weather Service Juneau Office

    Description: Operational meteorology is ever-changing, and there is an increasing need to provide enhanced Impact-Based Decision Support Services (IDSS), outreach-related activities, and telework status for COVID mitigation. WFO Juneau has developed tools using ArcGIS online to fulfill these needs. Recent developments include interactive situational awareness dashboards, educational Storymaps, and office recruitment material. We will demonstrate some of these new tools and their usages.

    The Virtual Alaska Weather Symposium (VAWS) is a collaboration between ACCAP, the Geographic Information Network of Alaska, and the NOAA National Weather Service. We present cutting-edge technologies in satellite remote sensing, forecasting, and modeling to a statewide audience through this webinar series.

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  5. Webinar page: uaf-accap.org/event/vaws-a-tale-of-two-ice-floes/

    November 18 @ 11:00 am to 12:00 pm AKST
    NOTE DATE CHANGE – This webinar was rescheduled from the original Nov. 17 to Nov. 18th because of a time conflict for the speaker.

    Speakers: Andy Mahoney and Melinda Webster, University of Alaska Fairbanks

    During the winter of 2019-2020, two drifting ice floes, thousands of miles apart, formed the temporary homes for two different Arctic operations. In late 2019, the icebreaker Polarstern was frozen into sea ice in the Central Arctic as the centerpiece of the year-long MOSAiC expedition. And, in February 2020, an ice camp was established roughly 150 miles offshore in the Alaska Beaufort Sea as the base of on-ice activity for the U.S. Navy’s biennial ICEX exercise. In this webinar, we will discuss the weather and ice conditions at each location and how this impacted the science and logistics. In the process, we will introduce some of the science that was carried on these two ice floes and reflect on how the unexpected weather and ice conditions can create challenges, but also offer new insights.

    The Virtual Alaska Weather Symposium (VAWS) is a collaboration between ACCAP, the Geographic Information Network of Alaska, and the NOAA National Weather Service. We present cutting-edge technologies in satellite remote sensing, forecasting, and modeling to a statewide audience through this webinar series.

    If you have questions about the presentations, please email [email protected]

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Virtual Alaska Weather Symposia

IARC Group

This partnership between the Geographic Information Network of Alaska (GINA) and the NOAA National Weather Service (NWS) brings cutting edge satellite based presentations to a broad audience and complements GINA’s and NWS’s deep pool of speakers and topics.

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