Crowe, D.; Pamula, R.; Cheung, H.Y.; S.F.J. De Wekker, 2020: Two Supervised Machine Learning Approaches for Wind Velocity Estimation Using Multi-Rotor Copter Attitude Measurements. Sensors 2020, 20, 5638. https://doi.org/10.3390/s20195638
Babić, N., S.F.J. De Wekker, 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
Gonzalez-Rocha, J., C.A. Woolsey, C. Sultan, and S.F.J. De Wekker, 2019: Sensing Wind from Quadrotor Motion. Journal of Guidance, Control, and Dynamics, 42, 836-852. DOI: 10.2514/1.G003542
De Wekker, S.F.J., M. Kossmann, J.C. Knievel, L. Giovannini, E.D. Gutmann, D. Zardi, 2018: Meteorological Applications Benefiting from an Improved Understanding of Atmospheric Exchange Processes over Mountains. Atmosphere 2018, 9, 371. DOI: 10.3390/atmos9100371
Grant, E.H.C., A. B. Brand, S.F.J. De Wekker, T.R. Lee, and J.E.B. Wofford, 2018: Evidence that climate sets the lower elevation range limit in a high‐elevation endemic salamander. Ecol Evol. 2018;00:1–10. DOI: 10.1002/ece3.4198
Serafin, S., B. Adler, J. Cuxart, S.F.J. De Wekker, A. Gohm, B. Grisogono, N. Kalthoff, D.J. Kirshbaum, M.W. Rotach, J. Schmidli, I. Stiperski, Z. Večenaj, D. Zardi, 2018: Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain. Atmosphere 9, 102. DOI:10.3390/atmos9030102
Lee, T.R., S.F.J. De Wekker, and S. Pal, 2018: The impact of the afternoon planetary boundary-layer height on the diurnal cycle of CO and CO2 mixing ratios at a low-altitude mountaintop. Boundary-Layer Meteorol. DOI 10.1007/s10546-018-0343-9
Van den Bossche, M., and S.F.J. De Wekker, 2018: Representativeness of wind measurements in mesoscale complex terrain. Theoretical and Applied Climatology. DOI: 10.1007/s00704-018-2402-z
Duine, G.J., and S.F.J. De Wekker, 2017: The effects of horizontal grid spacing on simulated PBL depths in an area of complex terrain in Utah. Environmental Fluid Mechanics. DOI:10.1007/s10652-017-9547-7
Babić, N.; Ž. Večenaj, S.F.J. De Wekker, 2017: Spectral gap characteristics in a daytime valley boundary layer. Q. J. R. Meteorol. Soc. 143, 2509–2523. DOI:10.1002/qj.310
Pal, S., T.R. Lee, and S.F.J. De Wekker, 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
Palomaki, R.T., N.T. Rose, M. van den Bossche, T.J. Sherman, and S.F.J. De Wekker, 2017: Wind estimation in the lower atmosphere using multirotor aircraft. J. Atmos. Oceanic Technol., 34, 1183–1191, DOI:10.1175/JTECH-D-16-0177.1
Van den Bossche, M., N.T. Rose, and S.F.J. De Wekker, 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., S.F.J. De Wekker, and G.D. Emmitt, 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, 1927- 1952. DOI: 10.1175/JAMC-D-15-0277.1
Gultepe, I., H.J.S. Fernando, E. R. Pardyjak, S. W. Hoch, Z. Silver, E. Creegan, L.S. Leo, Z. Pu, S.F.J. De Wekker, and C. Hang, 2016: An overview of the MATERHORN fog project: Observations and predictability. Pure Appl. Geophys.173, DOI: 10.1007/s00024-016-1374-0
Van den Bossche, M., and S.F.J. De Wekker, 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 Appl. Geophys. 173, 3031–3048.DOI 10.1007/s00024-016-1352-6
Lee, T.R., and S.F.J. De Wekker, 2016: Estimating planetary boundary layer heights over a valley from rawinsonde observations at a nearby airport: A case study for the Page Valley in Virginia, USA. Journal of Applied Meteorology and Climatology 55, 791- 809. DOI: 10.1175/JAMC-D-15-0300.1
Serafin, S., S.F.J. De Wekker, and J. Knievel, 2016: A mesoscale model-based climatography of nocturnal boundary-layer processes over the complex terrain of north-western Utah. Boundary-Layer Meteorology 159, 495–519. DOI 10.1007/s10546-015-0044-6
Babic, N., Z. Vecenaj, and S.F.J. De Wekker, 2016: Flux-variance similarity in complex terrain and its sensitivity to different methods to treat non-stationarity. Boundary-Layer Meteorol. 159, 123-145. DOI 10.1007/s10546-015-0110-0
Babic, N, Z. Vecenaj, H. Kozmar, K. Horvath, S.F.J. De Wekker, B. Grisogono, 2016: On turbulent fluxes during strong winter Bora wind events. Boundary-Layer Meteorol. 158, 331-350. DOI 10.1007/s10546-015-0088-7
De Wekker, S.F.J., and M. Kossmann, 2015: Convective boundary layer heights over mountainous terrain: A review of concepts. Front. Earth Sci., DOI: 10.3389/feart.2015.00077
Fernando, H.J.S., E. Pardyjak, S. Di Sabatino, F.K. Chow, S.F.J. De Wekker, S.W. Hoch, J. Hacker, et al. 2015: The MATERHORN – Unraveling the intricacies of mountain weather. Bulletin of the American Meteorological Society. DOI: 10.1175/BAMS-D-13-00131.1
Lee, T., De Wekker, S.F.J., Pal, S., Andrews, A., & Kofler, J., 2015: Meteorological controls on the diurnal variability of carbon monoxide mixing ratio at a mountaintop monitoring site in the Appalachian Mountains. Tellus B, 67. DOI: 10.3402/tellusb.v67.25659
He, Y., P. D’Odorico, and S.F.J. De Wekker, 2015: The role of vegetation-microclimate feedback in promoting shrub encroachment in the northern Chihuahuan desert. Global Change Biology 21, 2141-2154. DOI: 10.1111/gcb.12856
Vecenaj, Z. and S.F.J. De Wekker, 2014: Determination of non-stationarity in the surface layer during the T-REX experiment, Quarterly Journal of the Royal Meteorological Society 141, 1560-1571. DOI:10.1002/qj.2458 Lee , T.R., S.F.J. De Wekker, and J.E.B. Wofford, 2014: Downscaling maximum temperatures to subkilometer resolutions in the Shenandoah National Park of Virginia, USA. Advances in Meteorology, 2014, DOI:10.1155/2014/594965
Pal, S., T.R. Lee, S. Phelps, and S.F.J. De Wekker, 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., P. D’Odorico, and S.F.J. De Wekker, 2014: The relative importance of climate change and shrub encroachment on nocturnal warming in the southwestern United States. Int. J. Climatol. (2014). DOI: 10.1002/joc.3992
Andrews, A.E., J. D. Kofler, M. E. Trudeau, J. C. Williams, D. H. Neff, K. A. Masarie, D. Y. Chao, D. R. Kitzis, P. C. Novelli, C. L. Zhao, E. J. Dlugokencky, P. M. Lang, M. J. Crotwell, M. L. Fischer, M. J. Parker, J. T. Lee, D. D. Baumann, A. R. Desai, C. O. Stanier, S. F. J. De Wekker, D. E. Wolfe, J. W. Munger, and P. P. Tans, 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, Atmos. Meas. Tech., 7, 647-687, DOI:10.5194/amt-7-647-2014, 2014.
D'Odorico, P., Y. He, S. Collins, S.F.J. De Wekker, V.Engel, J.D. Fuentes, 2012: Vegetation–microclimate feedbacks in woodland–grassland ecotones. Global Ecology and Biogeography. doi: 10.1111/geb.12000
De Wekker, S. F. J., K. S. Godwin, G. D. Emmitt, S. Greco, 2012: Airborne Doppler Lidar Measurements of Valley Flows in Complex Coastal Terrain. J. Appl. Meteor. Climatol., 51, 1558–1574. doi: http://dx.doi.org/10.1175/JAMC-D-10-05034.1
Godwin, K.S., S.F.J. De Wekker, and G. D. Emmitt, 2012: Retrieving winds in the surface layer over land using an Airborne Doppler lidar. J. Atm. Ocean. Tech. 29, 487–499. doi: http://dx.doi.org/10.1175/JTECH-D-11-00139.1.
Lee, T.R., S.F.J. De Wekker, A. Andrews, J. Koffler, and J. Williams, 2011: Carbon dioxide variations during cold front passages at a forested mountaintop site in the Virginia Blue Ridge Mountains. Atmos. Env. 46, 405-416, doi:10.1016/j.atmosenv.2011.09.068.
Desai, A.R., D.J.P. Moore, W. K. M. Ahue, P. J. Wilkes, S.F.J. De Wekker, B.G. Brooks, T. L. Campos, B. B. Stephens, R. K. Monson, S. Burns, T. Quaife, S. Aulenbach, D. S. Schimel, 2011: Seasonal pattern of regional carbon balance in the Central Rocky Mountains from surface and airborne measurements, J. Geophys. Res. 116, G04009, doi:10.1029/2011JG001655.
He, Y, S.F.J. De Wekker, P. D’Odorico, J. Fuentes, 2011: Coupled land-atmosphere modeling of the effects of shrub encroachment on nighttime temperatures. Agric. For. Met., 151, 1690-1697. doi:10.1016/j.agrformet.2011.07.005.
Večenaj, Z., S.F.J. De Wekker, and V. Grubišić, 2011: Near Surface Characteristics of the Turbulence Structure During a Mountain Wave Event. J. Appl. Meteor. Climatol., 50, 1088–1106. doi: 10.1175/2010JAMC2450.1
Schmidli, J., B. Billings, F.K. Chow, S.F.J. De Wekker, J. Doyle, V. Grubisic, T. Holt, Q. Jiang, K. A. Lundquist, P. Sheridan, S. Vosper, C. D. Whiteman, A. Wyszogrodzki, G. Zangl, 2011: Intercomparison of mesoscale model simulations of the daytime valley wind system. Mon. Wea. Rev., 139, 1389–1409. doi: 10.1175/2010MWR3523.1
D’Odorico, P., J.D. Fuentes, W.T. Pockman, S.L. Collins, Y. He, J.A. Medeiros, S.F.J. De Wekker, and M.E. Litvak, 2010: Positive feedback between microclimate and shrub encroachment in the northern Chihuahuan desert. Ecosphere 1. doi:10.1890/ES10-00073.1
He, Y., P. D'Odorico, S.F.J. De Wekker, J. D. Fuentes, and M. Litvak, 2010: On the impact of shrub encroachment on microclimate conditions in the northern Chihuahuan desert, J. Geophys. Res., 115, D21120. doi:10.1029/2009JD013529
Sun, J., S.P. Oncley, S.P. Burns, B.B. Stephens, D.H. Lenschow, T. Campos, R.K. Monson, D.S. Schimel, W.J. Sacks, S.F.J. De Wekker, C. Lai, B. Lamb, D. Ojima, P.Z. Ellsworth, L.S.L. Sternberg, S. Zhong, C. Clements, D.J.P. Moore, D.E. Anderson, A.S. Watt, J. Hu, M. Tschudi, S. Aulenbach, E. Allwine, T. Coons, 2009: A Multiscale and Multidisciplinary Investigation of Ecosystem-Atmosphere CO2 Exchange over the Rocky Mountains of Colorado. Bull. Amer. Meteor. Soc., 91, 209–230. doi: 10.1175/2009BAMS2733.1
De Wekker, S.F.J. A. Ameen, G. Song, B.B. Stephens, A.G. Hallar, and I. McCubbin, 2009: A preliminary investigation of boundary layer effects on daytime atmospheric CO2 concentrations at a mountaintop location in the Rocky Mountains. Acta Geophysica 57, 904-922. doi: 10.2478/s11600-009-0033-6
De Wekker, S.F.J. and S. D. Mayor, 2009: Observations of atmospheric structure and dynamics in the Owens Valley of California with a ground-based, eye-safe, scanning aerosol lidar. J. Appl. Meteor. Climat. 48, 1483–1499. doi: 10.1175/2009JAMC2034.1
Doyle, J.D., V. Grubišić, W.O.J. Brown, S.F.J. De Wekker, A. Dörnbrack, Q. Jiang, S.D. Mayor, M. Weissmann, 2009: Observations and numerical simulations of subrotor vortices during T-REX. J. Atmos. Sci., 66, 1229-1249. doi: 10.1175/2008JAS2933.1
Grubišić, V., J.D. Doyle, J. Kuettner, S. Mobbs, R.B. Smith, C.D. Whiteman, R. Dirks, S. Czyzyk, S.A. Cohn, S. Vosper, M. Weissmann, S. Haimov, S.F.J. De Wekker, L.L. Pan, and F.K. Chow, 2008: The Terrain-Induced Rotor Experiment. Bull. Amer. Meteor. Soc., 89, 1513–1533. doi: 10.1175/ 2008BAMS2487.1
De Wekker, S.F.J., 2008: Observational and numerical evidence of depressed convective boundary layer heights near a mountain base. J. Appl Meteor. Climat. 47, 1017–1026.doi: 10.1175/ 2007JAMC1651.1
Zhong, S., J. Li, C. B. Clements, S.F.J. De Wekker, and X. Bian, 2008: Forcing mechanisms for Washoe Zephyr - a daytime downslope wind system in the lee of the Sierra Nevada. J. Appl Meteor. Climat. 47, 339-350. doi: 10.1175/2007JAMC1576.1
Whiteman, C.D., S.F.J. De Wekker, and T. Haiden, 2007: Effect of dewfall and frostfall on nighttime cooling in a small closed basin. J. Appl. Meteor. Climat., 46, 3–13. doi: 10.1175/JAM2453.1
De Wekker, S.F.J. and C.D. Whiteman, 2006: On the timescale of nocturnal boundary layer cooling in valleys, basins, and over plains. J. Appl. Meteor. Climat., 45, 813–820. doi: 10.1175/JAM2378.1
De Wekker, S.F.J., D.G. Steyn, J.D. Fast, M.W. Rotach, and S. Zhong, 2005: The performance of RAMS in representing the convective boundary layer structure in a very steep valley. Env. Fluid Mech. 5, 35-62. doi: 10.1007/s10652-005-8396-y
De Wekker, S.F.J., D.G. Steyn, and S. Nyeki, 2004: A comparison of aerosol layer- and convective boundary layer structure over a mountain range during STAAARTE ’97. Bound.-Layer Meteor. 113, 249-271. doi: 10.1023/B:BOUN.0000039371.41823.37
Rotach, M.W, P. Calanca, R. Vogt, D.G. Steyn, G. Graziani, M. Andretta, A.Christen, S. Cieslik, R. Conolly, S.F.J. De Wekker, S. Galmarini, E. van Gorsel, J. Gurtz, E. Kadygrov, V. Kadygrov, E. Miller, B. Neininger, M. Rucker, H. Weber, A. Weiss , M. Zappa, 2004: The turbulence structure and exchange processes in an Alpine Valley: The MAP-Riviera project. Bull. Amer. Meteor. Soc. 85, 1367-1385. doi: 10.1175/BAMS-85-9-1367
Henne, S., M. Furger, S. Nyeki, M. Steinbacher, B. Neininger, S.F.J. De Wekker, J. Dommen, N. Spichtinger, A. Stohl, A. S. H. Prévôt, 2004: Quantification of topographic venting of boundary layer air to the free troposphere. Atmos. Chem. Phys., 4, 497-509. doi:10.5194/acp-4-497-2004
Nyeki, S., M. Kalberer, I. Colbeck, S.F.J. De Wekker, M. Furger, H.W. Gäggeler, M. Kossmann, M. Lugauer, D. Steyn, E. Weingartner, M. Wirth, and U. Baltensperger, 2000: Convective Boundary Layer Evolution to 4 km asl over High-Alpine Terrain: Airborne Lidar observations in the Alps. Geophys. Res. Lett., 27, 689-692. doi:10.1029/1999GL010928
Nyeki, S., S.F.J. De Wekker, D. Steyn, M. Kossmann, M. Kalberer, I. Colbeck and U. Baltensperger, 1999: Airborne lidar study of convective boundary layer development over pre-alpine terrain, J. Aerosol Science, 30, 209-210. doi:10.1016/S0021-8502(99)80116-5
Kossmann, M., U. Corsmeier, S.F.J. De Wekker, F. Fiedler, R. Vögtlin, N. Kalthoff, H. Güsten, and B. Neininger, 1999: Observations of handover processes between the atmospheric boundary layer and the free troposphere over mountainous terrain. Contrib. Atmos. Phys., 72, 329-350.
De Wekker, S.F.J., S. Zhong, J.D. Fast, and C.D. Whiteman, 1998: A numerical study of the thermally driven plain-to-basin wind over idealized basin topographies. J. Appl. Meteor., 37, 606-622. doi: 10.1175/1520-0450(1998)037<0606:ANSOTT>2.0.CO;2
Doran, J.C., X. Bian, S.F.J. De Wekker, S. Edgerton, J.D. Fast, J.M. Hubbe, W.J. Shaw, C. D. Whiteman, S. Abbott, C. King, J. Leach, M. Mulhearn, C. Russell, B. Templeman, D. Wolfe, J. Archuleta, S. Elliott, A. Fernandez, D. Langley, J.T. Lee, W. Porch, L. Tellier, J. Chow, J.G. Watson, R.L. Coulter, T.J. Martin, J.D. Shannon, R. White, D. Martinez, J.L. Martinez, V. Mora, G. Sosa, G. Mercado, J.L. Pena, R. Salas, R. Petty, 1998: The IMADA-AVER Boundary Layer Experiment in the Mexico City Area. Bull. Amer. Meteor. Soc., 79, 2497–2508. doi: 10.1175/1520-0477(1998)079< 2497:TIABLE>2.0.CO;2
Referred Book Chapters
Steyn, D.G., S.F.J. De Wekker, M. Kossmann and A. Martilli, 2012: Boundary Layers and Air Quality in Mountainous Terrain. Chapter 5 in: Mountain Weather Research and Forecasting. Recent Progress and Current Challenges. Chow, F.K., De Wekker, S.F.J., Snyder, B. (eds) Springer, Berlin. In Press
Sun, J., and S.F.J. De Wekker, 2011: Atmospheric carbon dioxide transport over mountainous terrain. Chapter 5 in: Mountain Ecosystems:Dynamics, Management and Conservation. F. Columbus (ed.), Nova Science Publishers, Inc. p. 101-121.
Book Edits
Chow, F.K., S.F.J. De Wekker, and B. Snyder (editors), 2012: Mountain Weather Research and Forecasting. Recent Progress and Current Challenges. Springer, Berlin. In Press
M.S. Thesis
De Wekker, S.F.J., 1996: The estimation of areally-averaged sensible heat fluxes over complex terrain with a large-aperture scintillometer. MS Thesis, Wageningen University, Netherlands 42 pp. [main text]
Ph.D. Dissertation
De Wekker, S. F. J.: 2002, Structure and Morphology of the Convective Boundary Layer in Mountainous Terrain, Ph.D. Dissertation, The University of British Columbia, BC, Canada, 191 pp. [main text + appendix]