Published by Robert Privett on August 04, 2024
On Saturday, the Geographic Information Network of Alaska (GINA) at the University of Alaska Fairbanks (UAF) achieved a significant milestone by installing a new 3-meter satellite antenna atop the Usibelli Building. This modern antenna will replace the 23-year-old domed antenna on the Akasofu Building, which will now be used for educational purposes.
This upgrade marks a crucial enhancement in GINA’s satellite ground station capabilities. Jennifer Delamere, Director of GINA, highlighted that the new antenna features state-of-the-art technology and is projected to have a 25-year lifespan, underscoring the substantial investment in infrastructure to bolster satellite data reception and processing.
The new antenna is designed to capture data from the Joint Polar Satellite System (JPSS) constellation, operated by the National Oceanic and Atmospheric Administration (NOAA), along with data from European and Japanese satellite partners. JPSS satellites are essential for comprehensive weather and environmental monitoring, particularly valuable for Alaska’s diverse and challenging climate.
Delamere emphasized the significance of these satellites, stating, “JPSS satellites and their advanced instruments are among the most versatile observational tools for weather and hazard detection in Alaska. They provide frequent coverage and extensive reach, which are crucial for accurate forecasting and environmental monitoring.”
Operational testing of the new antenna will commence immediately, with data collection expected by the end of the week. The data will then be processed in the Butrovich Data Center. Delamere expressed enthusiasm about the new system’s potential, saying, “It’s inspiring to think about a satellite 500 miles above transmitting data to our 3-meter antenna. This data will generate critical imagery and information for environmental monitoring.”
The new antenna will receive both X band and L band signals, the latter operating at lower microwave frequencies. This dual-band capability is set to enhance the quality and range of data received. The antenna will function similarly to GINA’s existing setup at NOAA’s Fairbanks Command and Data Acquisition Station at Gilmore Creek, which supports data downlinking from 10 satellites and will accommodate future satellite launches in the next two years.
The current X band-only antenna on the Akasofu Building will be decommissioned. A protective dome will be installed over the new antenna later in the year to shield it from Alaska’s harsh weather.
GINA uses satellite measurements of visible, infrared, and microwave radiation to produce detailed maps and imagery of Alaska’s weather, fire activity, ocean conditions, and sea-ice extent. These products are crucial for real-time environmental monitoring and are widely used by government agencies, including the National Weather Service’s Alaska Sea Ice Program, Alaska Aviation Weather Unit, regional NWS forecast offices, the U.S. Bureau of Land Management’s Alaska Fire Service, and the Alaska Interagency Coordination Center. The Alaska Volcano Observatory, a collaborative effort between UAF’s Geophysical Institute and the U.S. Geological Survey, also relies on GINA’s data for monitoring volcanic activity.
This installation reaffirms GINA’s dedication to advancing its satellite ground station infrastructure and expanding its capabilities to support essential environmental and weather monitoring efforts in Alaska and beyond.