edu.ucar.opensky::articles:19490 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T02:37:43.724979 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d79w0h94 https://doi.org/10.5065/D68C9TFC https Related Dataset #1 BEACHON QC Radiosonde Data - Manitou Site. Version 1.0 https://doi.org/10.5065/D6M043C6 https Related Dataset #2 NCEP FNL Operational Model Global Tropospheric Analyses, continuing from July 1999 https://doi.org/10.5065/D6D50K5N https Related Dataset #3 BEACHON QC Radiosonde Data - Hayman Site. Version 1.0 The influence of fire-induced surface changes on the diurnal temperature changes over the Hayman fire scar 2017-01-01T00:00:00Z publication https://n2t.org/ark:/85065/d79w0h94 https://doi.org/10.1175/JAMC-D-16-0132.1 LeMone, Margaret A. author Wan, B. author Barlage, Michael J. author Chen, Fei author UCAR/NCAR - Library publisher During the 2010 Bio-Hydro-Atmosphere Interactions of Energy, Aerosols, Carbon, H2O, and Nitrogen (BEACHON) experiment in Colorado, nighttime temperatures over a site within the 2002 "Hayman'' fire scar were considerably warmer than over the "Manitou'' site that was located outside the fire scar. Temperature differences reached up to 7Kat the surface and extended to an average of 500m AGL. Afternoon temperatures through the planetary boundary layer (PBL) were similar at the two locations. PBL growth during the day was more rapid at Manitou until 1300 local time, after which the two daytime PBLs had similar temperatures and depths. Observations were taken in fair weather, with weak winds. Runs of the Advanced Research version of the Weather Research and Forecasting model (ARW-WRF) coupled to the Noah-MP land surface model suggest that the fire-induced loss of surface and soil organic matter accounted for the 3-4-K warming at Hayman relative to its prefire state, more than compensating for the cooling due to the fire-induced change in vegetation from forest to grassland. Modeled surface fluxes and soil temperature and moisture changes were consistent with observational studies comparing several-year-old fire scars with adjacent unaffected forests. The remaining difference between the two sites is likely from cold-air pooling at Manitou. It was necessary to increase vertical resolution and replace terrain-following diffusion with horizontal diffusion in ARW-WRF to better capture nighttime near-surface temperature and winds. Daytime PBL growth and afternoon temperature profiles were reasonably reproduced by the basic run with postfire conditions. Winds above the surface were only fairly represented, and refinements made to capture cold pooling degraded daytime temperature profiles slightly. 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 2017 American Meteorological Society (AMS). None eng geoscientificInformation