Stephan Franz Joseph De Wekker
Professor, Environmental Sciences
380A New Clark Hall
Bio & Overview
Academic Information
- Department
- Environmental Sciences
Research Interests
Research Disciplines
- Environmental Sciences
Selected Publications
2024
Duine, G. -J., De Wekker, S. F. J., & Knievel, J. C. (2024). The Influence of Terrain Smoothing on Simulated Convective Boundary-Layer Depths in Mountainous Terrain. ATMOSPHERE, 15(2). doi:10.3390/atmos15020145
2020
Crowe, D., Pamula, R., Cheung, H. Y., & De Wekker, S. E. J. (2020). Two Supervised Machine Learning Approaches for Wind Velocity Estimation Using Multi-Rotor Copter Attitude Measurements. SENSORS, 20(19). doi:10.3390/s20195638
Gonzalez-Rocha, J., De Wekker, S. F. J., Ross, S. D., & Woolsey, C. A. (2020). Wind Profiling in the Lower Atmosphere from Wind-Induced Perturbations to Multirotor UAS. SENSORS, 20(5). doi:10.3390/s20051341
2019
Palomaki, R. T., Babic, N., Duine, G. -J., van den Bossche, M., & De Wekker, S. F. J. (2019). Observations of Thermally-Driven Winds in a Small Valley during the 21 August 2017 Solar Eclipse. ATMOSPHERE, 10(7). doi:10.3390/atmos10070389
Babic, N., & De Wekker, S. F. J. (2019). Characteristics of roll and cellular convection in a deep and wide semiarid valley: A large-eddy simulation study. ATMOSPHERIC RESEARCH, 223, 74-87. doi:10.1016/j.atmosres.2019.03.009
2018
Grant, E. H. C., Brand, A. B., De Wekker, S. F. J., Lee, T. R., & Wofford, J. E. B. (2018). Evidence that climate sets the lower elevation range limit in a high-elevation endemic salamander. ECOLOGY AND EVOLUTION, 8(15), 7553-7562. doi:10.1002/ece3.4198
van den Bossche, M., & De Wekker, S. F. J. (2019). Representativeness of wind measurements in moderately complex terrain. THEORETICAL AND APPLIED CLIMATOLOGY, 135(1-2), 491-504. doi:10.1007/s00704-018-2402-z
De Wekker, S. F. J., Kossmann, M., Knievel, J. C., Giovannini, L., Gutmann, E. D., & Zardi, D. (2018). Meteorological Applications Benefiting from an Improved Understanding of Atmospheric Exchange Processes over Mountains. ATMOSPHERE, 9(10). doi:10.3390/atmos9100371
Lee, T. R., De Wekker, S. F. J., & Pal, S. (2018). The Impact of the Afternoon Planetary Boundary-Layer Height on the Diurnal Cycle of CO and Mixing Ratios at a Low-Altitude Mountaintop. BOUNDARY-LAYER METEOROLOGY, 168(1), 81-102. doi:10.1007/s10546-018-0343-9
Serafin, S., Adler, B., Cuxart, J., De Wekker, S. F. J., Gohm, A., Grisogono, B., . . . Zardi, D. (2018). Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain. ATMOSPHERE, 9(3). doi:10.3390/atmos9030102
2017
Duine, G. -J., & De Wekker, S. F. J. (2020). The effects of horizontal grid spacing on simulated daytime boundary layer depths in an area of complex terrain in Utah. ENVIRONMENTAL FLUID MECHANICS, 20(5), 1313-1331. doi:10.1007/s10652-017-9547-7
Palomaki, R. T., Rose, N. T., van den Bossche, M., Sherman, T. J., & De Wekker, S. F. J. (2017). Wind Estimation in the Lower Atmosphere Using Multirotor Aircraft. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 34(5), 1183-1191. doi:10.1175/JTECH-D-16-0177.1
van den Bossche, M., Rose, N. T., & De Wekker, S. F. J. (2017). Potential of a low-cost gas sensor for atmospheric methane monitoring. SENSORS AND ACTUATORS B-CHEMICAL, 238, 501-509. doi:10.1016/j.snb.2016.07.092
Pal, S., Lee, T. R., & De Wekker, S. F. J. (2017). A study of the combined impact of boundary layer height and near surface meteorology on the CO diurnal cycle at a low mountaintop site using simultaneous lidar and in-situ observations. ATMOSPHERIC ENVIRONMENT, 164, 165-179. doi:10.1016/j.atmosenv.2017.05.041
Babic, N., Vecenaj, Z., & De Wekker, S. F. J. (2017). Spectral gap characteristics in a daytime valley boundary layer. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 143(707), 2509-2523. doi:10.1002/qj.3103
2016
Lee, T. R., & De Wekker, S. F. J. (2016). Estimating Daytime Planetary Boundary Layer Heights over a Valley from Rawinsonde Observations at a Nearby Airport: An Application to the Page Valley in Virginia, United States. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 55(3), 791-809. doi:10.1175/JAMC-D-15-0300.1
Gultepe, I., Fernando, H. J. S., Pardyjak, E. R., Hoch, S. W., Silver, Z., Creegan, E., . . . Hang, C. (2016). An Overview of the MATERHORN Fog Project: Observations and Predictability. PURE AND APPLIED GEOPHYSICS, 173(9), 2983-3010. doi:10.1007/s00024-016-1374-0
Pal, S., De Wekker, S. F. J., & Emmitt, G. D. (2016). Investigation of the Spatial Variability of the Convective Boundary Layer Heights over an Isolated Mountain: Cases from the MATERHORN-2012 Experiment. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 55(9), 1927-1952. doi:10.1175/JAMC-D-15-0277.1
van den Bossche, M., & De Wekker, S. F. J. (2016). Spatiotemporal Variability of Surface Meteorological Variables During Fog and No-Fog Events in the Heber Valley, UT; Selected Case Studies From MATERHORN-Fog. PURE AND APPLIED GEOPHYSICS, 173(9), 3031-3048. doi:10.1007/s00024-016-1352-6
2015
Babic, N., Vecenaj, Z., & De Wekker, S. F. J. (2016). Flux-Variance Similarity in Complex Terrain and Its Sensitivity to Different Methods of Treating Non-stationarity. BOUNDARY-LAYER METEOROLOGY, 159(1), 123-145. doi:10.1007/s10546-015-0110-0
Babic, N., Vecenaj, Z., Kozmar, H., Horvath, K., De Wekker, S. F. J., & Grisogono, B. (2016). On Turbulent Fluxes During Strong Winter Bora Wind Events. BOUNDARY-LAYER METEOROLOGY, 158(2), 331-350. doi:10.1007/s10546-015-0088-7
Serafin, S., De Wekker, S. F. J., & Knievel, J. C. (2016). A Mesoscale Model-Based Climatography of Nocturnal Boundary-Layer Characteristics over the Complex Terrain of North-Western Utah. BOUNDARY-LAYER METEOROLOGY, 159(3), 495-519. doi:10.1007/s10546-015-0044-6
He, Y., D'Odorico, P., & De Wekker, S. F. J. (2015). The role of vegetation-microclimate feedback in promoting shrub encroachment in the northern Chihuahuan desert. GLOBAL CHANGE BIOLOGY, 21(6), 2141-2154. doi:10.1111/gcb.12856
Lee, T. R., De Wekker, S. F. J., Pal, S., Andrews, A. E., & Kofler, J. (2015). Meteorological controls on the diurnal variability of carbon monoxide mixing ratio at a mountaintop monitoring site in the Appalachian Mountains. TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 67. doi:10.3402/tellusb.v67.25659
De Wekker, S. F. J., & Kossmann, M. (2015). Convective Boundary Layer Heights Over Mountainous Terrain A Review of Concepts. FRONTIERS IN EARTH SCIENCE, 3. doi:10.3389/feart.2015.00077
Fernando, H. J. S., Pardyjak, E. R., Di Sabatino, S., Chow, F. K., De Wekker, S. F. J., Hoch, S. W., . . . Zsedrovits, T. (2015). THE MATERHORN Unraveling the Intricacies of Mountain Weather. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 96(11). doi:10.1175/BAMS-D-13-00131.1
2014
Vecenaj, Z., & De Wekker, S. F. J. (2015). Determination of non-stationarity in the surface layer during the T-REX experiment. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 141(690), 1560-1571. doi:10.1002/qj.2458
Pal, S., Lee, T. R., Phelps, S., & De Wekker, S. F. J. (2014). Impact of atmospheric boundary layer depth variability and wind reversal on the diurnal variability of aerosol concentration at a valley site. SCIENCE OF THE TOTAL ENVIRONMENT, 496, 424-434. doi:10.1016/j.scitotenv.2014.07.067
He, Y., D'Odorico, P., & De Wekker, S. F. J. (2015). The relative importance of climate change and shrub encroachment on nocturnal warming in the southwestern United States. INTERNATIONAL JOURNAL OF CLIMATOLOGY, 35(3), 475-480. doi:10.1002/joc.3992
Lee, T. R., De Wekker, S. F. J., & Wofford, J. E. B. (2014). Downscaling Maximum Temperatures to Subkilometer Resolutions in the Shenandoah National Park of Virginia, USA. ADVANCES IN METEOROLOGY, 2014. doi:10.1155/2014/594965
Andrews, A. E., Kofler, J. D., Trudeau, M. E., Williams, J. C., Neff, D. H., Masarie, K. A., . . . Tans, P. P. (2014). CO2, CO, and CH4 measurements from tall towers in the NOAA Earth System Research Laboratory's Global Greenhouse Gas Reference Network: instrumentation, uncertainty analysis, and recommendations for future high-accuracy greenhouse gas monitoring efforts. ATMOSPHERIC MEASUREMENT TECHNIQUES, 7(2), 647-687. doi:10.5194/amt-7-647-2014
2013
Andrews, A. E., Kofler, J. D., Trudeau, M. E., Williams, J. C., Neff, D. H., Masarie, K. A., . . . Tans, P. P. (2013). CO<sub>2</sub>, CO and CH<sub>4</sub> measurements from the NOAA Earth System Research Laboratory's Tall Tower Greenhouse Gas Observing Network: instrumentation, uncertainty analysis and recommendations for future high-accuracy greenhouse gas monitoring efforts. doi:10.5194/amtd-6-1461-2013
2012
D'Odorico, P., He, Y., Collins, S., De Wekker, S. F. J., Engel, V., & Fuentes, J. D. (2013). Vegetation-microclimate feedbacks in woodland-grassland ecotones. GLOBAL ECOLOGY AND BIOGEOGRAPHY, 22(4), 364-379. doi:10.1111/geb.12000
Godwin, K. S., De Wekker, S. F. J., & Emmitt, G. D. (2012). Retrieving Winds in the Surface Layer over Land Using an Airborne Doppler Lidar. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 29(4), 487-499. doi:10.1175/JTECH-D-11-00139.1
De Wekker, S. F. J., Godwin, K. S., Emmitt, G. D., & Greco, S. (2012). Airborne Doppler Lidar Measurements of Valley Flows in Complex Coastal Terrain. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 51(8), 1558-1574. doi:10.1175/JAMC-D-10-05034.1
Lee, T. R., De Wekker, S. F. J., Andrews, A. E., Kofler, J., & Williams, J. (2012). Carbon dioxide variability during cold front passages and fair weather days at a forested mountaintop site. ATMOSPHERIC ENVIRONMENT, 46, 405-416. doi:10.1016/j.atmosenv.2011.09.068
2011
He, Y., De Wekker, S. F. J., Fuentes, J. D., & D'Odorico, P. (2011). Coupled land-atmosphere modeling of the effects of shrub encroachment on nighttime temperatures. AGRICULTURAL AND FOREST METEOROLOGY, 151(12), 1690-1697. doi:10.1016/j.agrformet.2011.07.005
Desai, A. R., Moore, D. J. P., Ahue, W. K. M., Wilkes, P. T. V., De Wekker, S. F. J., Brooks, B. G., . . . Schimel, D. S. (2011). Seasonal pattern of regional carbon balance in the central Rocky Mountains from surface and airborne measurements. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 116. doi:10.1029/2011JG001655
Schmidli, J., Billings, B., Chow, F. K., de Wekker, S. F. J., Doyle, J., Grubisic, V., . . . Zaengl, G. (2011). Intercomparison of Mesoscale Model Simulations of the Daytime Valley Wind System. MONTHLY WEATHER REVIEW, 139(5), 1389-1409. doi:10.1175/2010MWR3523.1
Vecenaj, Z., De Wekker, S. F. J., & Grubisic, V. (2011). Near-Surface Characteristics of the Turbulence Structure during a Mountain-Wave Event. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 50(5), 1088-1106. doi:10.1175/2010JAMC2450.1
2010
He, Y., D'Odorico, P., De Wekker, S. F. J., Fuentes, J. D., & Litvak, M. (2010). On the impact of shrub encroachment on microclimate conditions in the northern Chihuahuan desert. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 115. doi:10.1029/2009JD013529
Sun, J., Oncley, S. P., Burns, S. P., Stephens, B. B., Lenschow, D. H., Campos, T., . . . Coons, T. (2010). A MULTISCALE AND MULTIDISCIPLINARY INVESTIGATION OF ECOSYSTEM-ATMOSPHERE CO2 EXCHANGE OVER THE ROCKY MOUNTAINS OF COLORADO. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 91(2), 209-230. doi:10.1175/2009BAMS2733.1