edu.ucar.opensky::articles:24424 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T06:29:12.706298 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7m90d2p https://doi.org/10.5281/zenodo.3720342 https Related Dataset #1 National Severe Storms Laboratory Mobile Soundings during Lapse-Rate https://doi.org/10.5281/zenodo.3720444 https Related Dataset #2 National Severe Storms Laboratory Mobile Soundings during Lapse-Rate (CLAMPS trailer) https://doi.org/10.5281/zenodo.3737087 https Related Dataset #3 University of Oklahoma CopterSonde Files from LAPSE-RATE https://doi.org/10.5281/zenodo.3780593 https Related Dataset #4 OU/NSSL CLAMPS Microwave Radiometer and Surface Meteorological Data from LAPSE-RATE https://doi.org/10.5281/zenodo.3780623 https Related Dataset #5 OU/NSSL CLAMPS Doppler Lidar Data from LAPSE-RATE https://doi.org/10.5281/zenodo.3804164 https Related Dataset #6 LAPSE-RATE ground-based Doppler lidar datasets from Univ Colorado Boulder https://doi.org/10.5281/zenodo.3838724 https Related Dataset #7 University of Nebraska-Lincoln Mobile Mesonet files from LAPSE-RATE https://doi.org/10.5281/zenodo.3861831 https Related Dataset #8 Black Swift Technologies S1 Unmanned Aircraft System Observations from LAPSE-RATE https://doi.org/10.5281/zenodo.3891620 https Related Dataset #9 DataHawk2 files from LAPSE-RATE https://doi.org/10.5281/zenodo.3923056 https Related Dataset #10 University of Kentucky files from LAPSE-RATE Assimilation of a coordinated fleet of uncrewed aircraft system observations in complex terrain: ENKF system design and preliminary assessment 2021-05-01T00:00:00Z publication https://n2t.org/ark:/85065/d7m90d2p https://doi.org/10.1175/MWR-D-20-0359.1 Jensen, Anders A. author Pinto, James author Bailey, S. C. C. author Sobash, Ryan A. author de Boer, G. author Houston, A. L. author Chilson, P. B. author Bell, T. author Romine, Glen author Smith, S. W. author Lawrence, D. A. author Dixon, C. author Lundquist, J. K. author Jacob, J. D. author Elston, J. author Waugh, S. author Steiner, Matthias author UCAR/NCAR - Library publisher Uncrewed aircraft system (UAS) observations collected during the 2018 Lower Atmospheric Process Studies at Elevation—a Remotely Piloted Aircraft Team Experiment (LAPSE-RATE) field campaign were assimilated into a high-resolution configuration of the Weather Research and Forecasting Model using an ensemble Kalman filter. The benefit of UAS observations was assessed for a terrain-driven (drainage and upvalley) flow event that occurred within Colorado's San Luis Valley (SLV) using independent observations. The analysis and prediction of the strength, depth, and horizontal extent of drainage flow from the Saguache Canyon and the subsequent transition to upvalley and up-canyon flow were improved relative to that obtained both without data assimilation (benchmark) and when only surface observations were assimilated. Assimilation of UAS observations greatly improved the analyses of vertical variations in temperature, relative humidity, and winds at multiple locations in the northern portion of the SLV, with reductions in both bias and the root-mean-square error of roughly 40% for each variable relative to the benchmark run. Despite these noted improvements, some biases remain that were tied to measurement error and/or the impact of the boundary layer parameterization on vertically spreading the observations, both of which require further exploration. The results presented here highlight how observations obtained with a fleet of profiling UAS improve limited-area, high-resolution analyses and short-term forecasts in complex terrain. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2021 American Meteorological Society (AMS). None eng geoscientificInformation