Volcano Watch — Not just polka dots: the hidden dance of processing GPS data

For over thirty years, high-precision GPS (Global Positioning System) measurements have been a key tool used by the USGS Hawaiian Volcano Observatory (HVO). Scientists have come to depend on daily GPS positions to monitor changes in the shape of volcanoes and understand magma storage and movement underground.   

For over thirty years, high-precision GPS (Global Positioning System) measurements have been a key tool used by the USGS Hawaiian Volcano Observatory (HVO). Scientists have come to depend on daily GPS positions to monitor changes in the shape of volcanoes and understand magma storage and movement underground.    Read More