Northeast doppler radar in motion7/27/2023 The water vapor levels are high prior to June 13, when heavy rains occurred, but dropped as a cold front passed through the area. Blue line is the amount of water vapor in the atmosphere above GPS station P720. Gray line is the level of the Lamar River. The result was a lot of water with no place to go but into swollen streams and rivers.Ītmospheric water vapor and river level measured in the northeast part of Yellowstone National Park. About 2-3 inches of rain fell in the northern portion of the park on June 13, 2022, but it fell on considerable snow cover that had already saturated the soil as it started to melt. The June 2022 flooding in Yellowstone occurred due to an "atmospheric river" that delivered a large amount of moisture to be wrung out in an intense rainstorm. This means that careful corrections are required to make position calculations as precise as possible, but also that other aspects of the environment can be isolated as their own measurement.įor example, GPS stations can measure the amount of water vapor in the atmosphere, as well as the depth of snow cover near the station. The signals from navigation satellites are also sensitive to the conditions they encounter between the satellite and the station. Johnson, Science Communications Associate for UNAVCO.Ĭontinuous GPS stations were initially constructed to measure solid Earth deformation-like motion of tectonic plates, how earthquakes cause ground displacement, and volcano movement due to magmatic activity. This week's contribution is from Scott K. Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. Continuous GPS station P711 near Madison Campground.
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