Articles | Volume 15, issue 17
https://doi.org/10.5194/amt-15-5095-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-5095-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Passive ground-based remote sensing of radiation fog
National Centre for Atmospheric Science, Leeds, UK
School of Earth and Environment, University of Leeds, Leeds, UK
David D. Turner
Global Systems Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA
Von P. Walden
Department of Civil and Environmental Engineering, Laboratory for Atmospheric Research, Washington State University, Pullman, WA, USA
Ian M. Brooks
School of Earth and Environment, University of Leeds, Leeds, UK
Ryan R. Neely
National Centre for Atmospheric Science, Leeds, UK
School of Earth and Environment, University of Leeds, Leeds, UK
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This paper provides a review of prominent scientific challenges to characterizing the offshore wind resource using as examples phenomena that occur in the rapidly developing wind energy areas off the United States. The paper also describes the current state of modeling and observations in the marine atmospheric boundary layer and provides specific recommendations for filling key current knowledge gaps.
Lucas J. Sterzinger, Joseph Sedlar, Heather Guy, Ryan R. Neely III, and Adele L. Igel
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Aerosol particles are required for cloud droplets to form, and the Arctic atmosphere often has much fewer aerosols than at lower latitudes. In this study, we investigate whether aerosol concentrations can drop so low as to no longer support a cloud. We use observations to initialize idealized model simulations to investigate a worst-case scenario where all aerosol is removed from the environment instantaneously. We find that this mechanism is possible in two cases and is unlikely in the third.
Helen Czerski, Ian M. Brooks, Steve Gunn, Robin Pascal, Adrian Matei, and Byron Blomquist
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The bubbles formed by breaking waves speed up the movement of gases like carbon dioxide and oxygen between the atmosphere and the ocean. Understanding where these gases go is an important part of understanding Earth's climate. In this paper we describe measurements of the bubbles close to the ocean surface during big storms in the North Atlantic. We observed small bubbles collecting in distinctive patterns which help us to understand the contribution they make to the ocean breathing.
Helen Czerski, Ian M. Brooks, Steve Gunn, Robin Pascal, Adrian Matei, and Byron Blomquist
Ocean Sci., 18, 587–608, https://doi.org/10.5194/os-18-587-2022, https://doi.org/10.5194/os-18-587-2022, 2022
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The bubbles formed by breaking waves at the ocean surface are important because they are thought to speed up the movement of gases like carbon dioxide and oxygen between the atmosphere and ocean. We collected data on the bubbles in the top few metres of the ocean which were created by storms in the North Atlantic. The focus in this paper is the bubble sizes and their position in the water. We saw that there are very predictable patterns and set out what happens to bubbles after a wave breaks.
Shima Bahramvash Shams, Von P. Walden, James W. Hannigan, William J. Randel, Irina V. Petropavlovskikh, Amy H. Butler, and Alvaro de la Cámara
Atmos. Chem. Phys., 22, 5435–5458, https://doi.org/10.5194/acp-22-5435-2022, https://doi.org/10.5194/acp-22-5435-2022, 2022
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Large-scale atmospheric circulation has a strong influence on ozone in the Arctic, and certain anomalous dynamical events, such as sudden stratospheric warmings, cause dramatic alterations of the large-scale circulation. A reanalysis model is evaluated and then used to investigate the impact of sudden stratospheric warmings on mid-atmospheric ozone. Results show that the position of the cold jet stream over the Arctic before these events influences the variability of ozone.
James B. Duncan Jr., Laura Bianco, Bianca Adler, Tyler Bell, Irina V. Djalalova, Laura Riihimaki, Joseph Sedlar, Elizabeth N. Smith, David D. Turner, Timothy J. Wagner, and James M. Wilczak
Atmos. Meas. Tech., 15, 2479–2502, https://doi.org/10.5194/amt-15-2479-2022, https://doi.org/10.5194/amt-15-2479-2022, 2022
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In this study, several ground-based remote sensing instruments are used to estimate the height of the convective planetary boundary layer, and their performance is compared against independent boundary layer depth estimates obtained from radiosondes launched as part of the CHEESEHEAD19 field campaign. The impact of clouds (particularly boundary layer clouds) on the estimation of the boundary layer depth is also investigated.
Piyush Srivastava, Ian M. Brooks, John Prytherch, Dominic J. Salisbury, Andrew D. Elvidge, Ian A. Renfrew, and Margaret J. Yelland
Atmos. Chem. Phys., 22, 4763–4778, https://doi.org/10.5194/acp-22-4763-2022, https://doi.org/10.5194/acp-22-4763-2022, 2022
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The parameterization of surface turbulent fluxes over sea ice remains a weak point in weather forecast and climate models. Recent theoretical developments have introduced more extensive physics but these descriptions are poorly constrained due to a lack of observation data. Here we utilize a large dataset of measurements of turbulent fluxes over sea ice to tune the state-of-the-art parameterization of wind stress, and compare it with a previous scheme.
Irina V. Djalalova, David D. Turner, Laura Bianco, James M. Wilczak, James Duncan, Bianca Adler, and Daniel Gottas
Atmos. Meas. Tech., 15, 521–537, https://doi.org/10.5194/amt-15-521-2022, https://doi.org/10.5194/amt-15-521-2022, 2022
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In this paper we investigate the synergy obtained by combining active (radio acoustic sounding system – RASS) and passive (microwave radiometer) remote sensing observations to obtain temperature vertical profiles through a radiative transfer model. Inclusion of the RASS observations leads to more accurate temperature profiles from the surface to 5 km above ground, well above the maximum height of the RASS observations themselves (2000 m), when compared to the microwave radiometer used alone.
Heather Guy, Ian M. Brooks, Ken S. Carslaw, Benjamin J. Murray, Von P. Walden, Matthew D. Shupe, Claire Pettersen, David D. Turner, Christopher J. Cox, William D. Neff, Ralf Bennartz, and Ryan R. Neely III
Atmos. Chem. Phys., 21, 15351–15374, https://doi.org/10.5194/acp-21-15351-2021, https://doi.org/10.5194/acp-21-15351-2021, 2021
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We present the first full year of surface aerosol number concentration measurements from the central Greenland Ice Sheet. Aerosol concentrations here have a distinct seasonal cycle from those at lower-altitude Arctic sites, which is driven by large-scale atmospheric circulation. Our results can be used to help understand the role aerosols might play in Greenland surface melt through the modification of cloud properties. This is crucial in a rapidly changing region where observations are sparse.
Raghavendra Krishnamurthy, Rob K. Newsom, Larry K. Berg, Heng Xiao, Po-Lun Ma, and David D. Turner
Atmos. Meas. Tech., 14, 4403–4424, https://doi.org/10.5194/amt-14-4403-2021, https://doi.org/10.5194/amt-14-4403-2021, 2021
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Planetary boundary layer (PBL) height is a critical parameter in atmospheric models. Continuous PBL height measurements from remote sensing measurements are important to understand various boundary layer mechanisms, especially during daytime and evening transition periods. Due to several limitations in existing methodologies to detect PBL height from a Doppler lidar, in this study, a machine learning (ML) approach is tested. The ML model is observed to improve the accuracy by over 50 %.
David D. Turner and Ulrich Löhnert
Atmos. Meas. Tech., 14, 3033–3048, https://doi.org/10.5194/amt-14-3033-2021, https://doi.org/10.5194/amt-14-3033-2021, 2021
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Temperature and humidity profiles in the lowest couple of kilometers near the surface are very important for many applications. Passive spectral radiometers are commercially available, and observations from these instruments have been used to get these profiles. However, new active lidar systems are able to measure partial profiles of water vapor. This paper investigates how the derived profiles of water vapor and temperature are improved when the active and passive observations are combined.
Maryna Lukach, David Dufton, Jonathan Crosier, Joshua M. Hampton, Lindsay Bennett, and Ryan R. Neely III
Atmos. Meas. Tech., 14, 1075–1098, https://doi.org/10.5194/amt-14-1075-2021, https://doi.org/10.5194/amt-14-1075-2021, 2021
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This paper presents a novel technique of data-driven hydrometeor classification (HC) from quasi-vertical profiles, where the hydrometeor types are identified from an optimal number of hierarchical clusters, obtained recursively. This data-driven HC approach is capable of providing an optimal number of classes from dual-polarimetric weather radar observations. The embedded flexibility in the extent of granularity is the main advantage of this technique.
Jutta Vüllers, Peggy Achtert, Ian M. Brooks, Michael Tjernström, John Prytherch, Annika Burzik, and Ryan Neely III
Atmos. Chem. Phys., 21, 289–314, https://doi.org/10.5194/acp-21-289-2021, https://doi.org/10.5194/acp-21-289-2021, 2021
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This paper provides interesting new results on the thermodynamic structure of the boundary layer, cloud conditions, and fog characteristics in the Arctic during the Arctic Ocean 2018 campaign. It provides information for interpreting further process studies on aerosol–cloud interactions and shows substantial differences in thermodynamic conditions and cloud characteristics based on comparison with previous campaigns. This certainly raises the question of whether it is just an exceptional year.
Peggy Achtert, Ewan J. O'Connor, Ian M. Brooks, Georgia Sotiropoulou, Matthew D. Shupe, Bernhard Pospichal, Barbara J. Brooks, and Michael Tjernström
Atmos. Chem. Phys., 20, 14983–15002, https://doi.org/10.5194/acp-20-14983-2020, https://doi.org/10.5194/acp-20-14983-2020, 2020
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We present observations of precipitating and non-precipitating Arctic liquid and mixed-phase clouds during a research cruise along the Russian shelf in summer and autumn of 2014. Active remote-sensing observations, radiosondes, and auxiliary measurements are combined in the synergistic Cloudnet retrieval. Cloud properties are analysed with respect to cloud-top temperature and boundary layer structure. About 8 % of all liquid clouds show a liquid water path below the infrared black body limit.
Cited articles
Anber, U., Gentine, P., Wang, S., and Sobel, A. H.: Fog and rain in the Amazon,
P. Natl. Acad. Sci. USA, 112, 11473–11477, 2015. a
Antonelli, P., Revercomb, H., Sromovsky, L., Smith, W., Knuteson, R., Tobin,
D., Garcia, R., Howell, H., Huang, H.-L., and Best, F.: A principal component
noise filter for high spectral resolution infrared measurements, J.
Geophys. Res.-Atmos., 109, D23, https://doi.org/10.1029/2004JD004862, 2004. a
Beiderwieden, E., Klemm, O., and Hsia, Y. J.: The impact of fog on the energy
budget of a subtropical cypress forest in Taiwan, Taiwan J. Forest
Sci., 22, 227–239, https://doi.org/10.7075/TJFS.200709.0227, 2007. a
Bendix, J.: A case study on the determination of fog optical depth and liquid
water path using AVHRR data and relations to fog liquid water content and
horizontal visibility A case study on the determination of fog optical depth
and liquid water path using AVHRR data and relations to fog liquid water
content and horizontal visibility, Int. J. Remote Sens., 16, 515–530,
https://doi.org/10.1080/01431169508954416, 1995. a
Bennartz, R., Shupe, M. D., Turner, D. D., Walden, V. P., Steffen, K., Cox,
C. J., Kulie, M. S., Miller, N. B., and Pettersen, C.: July 2012 Greenland
melt extent enhanced by low-level liquid clouds, Nature, 496, 83,
https://doi.org/10.1038/nature12002, 2013. a, b
Bergot, T., Terradellas, E., Cuxart, J., Mira, A., Liechti, O., Mueller, M.,
and Nielsen, N. W.: Intercomparison of Single-Column Numerical Models for
the Prediction of Radiation Fog, J. Appl. Meteorol.
Climatol., 46, 504–521, https://doi.org/10.1175/JAM2475.1, 2007. a
Blumberg, W. G., Turner, D. D., Löhnert, U., and Castleberry, S.:
Ground-Based Temperature and Humidity Profiling Using Spectral Infrared and
Microwave Observations. Part II: Actual Retrieval Performance in Clear-Sky
and Cloudy Conditions, J. Appl. Meteorol. Climatol., 54,
2305–2319, https://doi.org/10.1175/JAMC-D-15-0005.1, 2015. a, b, c, d, e, f, g, h, i, j, k, l, m, n, o
Cadeddu, M. P., Liljegren, J. C., and Turner, D. D.: The Atmospheric radiation measurement (ARM) program network of microwave radiometers: instrumentation, data, and retrievals, Atmos. Meas. Tech., 6, 2359–2372, https://doi.org/10.5194/amt-6-2359-2013, 2013. a
Cao, Y., Tan, W., and Wu, Z.: Aircraft icing: An ongoing threat to aviation
safety, Aero. Sci. Technol., 75, 353–385, 2018. a
Cimini, D., Nelson, M., Güldner, J., and Ware, R.: Forecast indices from a ground-based microwave radiometer for operational meteorology, Atmos. Meas. Tech., 8, 315–333, https://doi.org/10.5194/amt-8-315-2015, 2015. a
Cimini, D., Rosenkranz, P. W., Tretyakov, M. Y., Koshelev, M. A., and Romano, F.: Uncertainty of atmospheric microwave absorption model: impact on ground-based radiometer simulations and retrievals, Atmos. Chem. Phys., 18, 15231–15259, https://doi.org/10.5194/acp-18-15231-2018, 2018. a
Clough, S. A. and Iacono, M. J.: Line-by-line calculation of atmospheric
fluxes and cooling rates: 2. Application to carbon dioxide, ozone, methane,
nitrous oxide and the halocarbons, J. Geophys. Res.-Atmos., 100, 16519–16535, https://doi.org/10.1029/95JD01386, 1995. a
Cox, C. J., Walden, V. P., and Rowe, P. M.: A comparison of the atmospheric
conditions at Eureka, Canada, and Barrow, Alaska (2006–2008), J.
Geophys. Res.-Atmos., 117, D12, https://doi.org/10.1029/2011JD017164, 2012. a
Crewell, S. and Lohnert, U.: Accuracy of Boundary Layer Temperature Profiles
Retrieved with Multi-frequency, Multiangle Microwave Radiometry, SPECIAL
ISSUE ON MICROWAVE RADIOMETRY AND REMOTE SENSING APPLICATIONS, 2195–2201, https://doi.org/10.1109/TGRS.2006.888434, 2007. a
Djalalova, I. V., Turner, D. D., Bianco, L., Wilczak, J. M., Duncan, J., Adler, B., and Gottas, D.: Improving thermodynamic profile retrievals from microwave radiometers by including radio acoustic sounding system (RASS) observations, Atmos. Meas. Tech., 15, 521–537, https://doi.org/10.5194/amt-15-521-2022, 2022. a, b, c
Ducloux, H. and Nygaard, B. E.: Ice loads on overhead lines due to freezing
radiation fog events in plains, Cold Reg. Sci. Technol., 153,
120–129, https://doi.org/10.1016/J.COLDREGIONS.2018.04.018, 2018. a
Gultepe, I., Tardif, R., Michaelides, S. C., Cermak, J., Bott, A., Bendix, J.,
Müller, M. D., Pagowski, M., Hansen, B., Ellrod, G., Jacobs, W., Toth,
G., and Cober, S. G.: Fog research: A review of past achievements and future
perspectives, Pure Appl. Geophys., 164, 1121–1159, https://doi.org/10.1007/s00024-007-0211-x, 2007. a, b, c, d
Gultepe, I., Pearson, G., Milbrandt, J. A., Hansen, B., Platnick, S., Taylor,
P., Gordon, M., Oakley, J. P., and Cober, S. G.: The Fog Remote Sensing and
Modeling Field Project, B. Am. Meteorol. Soc., 90,
341–360, https://doi.org/10.1175/2008BAMS2354.1, 2009. a
Gultepe, I., Sharman, R., Williams, P. D., Zhou, B., Ellrod, G., Minnis, P.,
Trier, S., Griffin, S., Yum, S. S., and Gharabaghi, B.: A Review of High
Impact Weather for Aviation Meteorology, Pure Appl. Geophys., 176,
18, https://doi.org/10.1007/s00024-019-02168-6, 2019. a
Guy, H., Neely III, R. R., and Brooks, I.: ICECAPS-ACE: Integrated
Characterization of Energy, Clouds, Atmospheric state, and Precipitation at
Summit, Greenland – Aerosol Cloud Experiment measurements, Centre for
Environmental Data Analysis [data set], http://catalogue.ceda.ac.uk/uuid/f06c6aa727404ca788ee3dd0515ea61a (last access: 5 July 2021),
2020. a
Guy, H., Brooks, I. M., Carslaw, K. S., Murray, B. J., Walden, V. P., Shupe, M. D., Pettersen, C., Turner, D. D., Cox, C. J., Neff, W. D., Bennartz, R., and Neely III, R. R.: Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet, Atmos. Chem. Phys., 21, 15351–15374, https://doi.org/10.5194/acp-21-15351-2021, 2021. a, b, c
Haeffelin, M., Dupont, J. C., Boyouk, N., Baumgardner, D., Gomes, L., Roberts,
G., and Elias, T.: A Comparative Study of Radiation Fog and Quasi-Fog
Formation Processes During the ParisFog Field Experiment 2007, Pure
Appl. Geophys., 170, 2283–2303,
https://doi.org/10.1007/s00024-013-0672-z, 2013. a
Haeffelin, M., Laffineur, Q., Bravo-Aranda, J.-A., Drouin, M.-A., Casquero-Vera, J.-A., Dupont, J.-C., and De Backer, H.: Radiation fog formation alerts using attenuated backscatter power from automatic lidars and ceilometers, Atmos. Meas. Tech., 9, 5347–5365, https://doi.org/10.5194/amt-9-5347-2016, 2016. a, b
Han, Y.: Analysis and improvement of tipping calibration for ground-based
microwave radiometers, IEEE Trans. Geosci. Remote Sens.,
38, 1260–1276, https://doi.org/10.1109/36.843018, 2000. a
Hartung, D. C., Otkin, J. A., Petersen, R. A., Turner, D. D., and Feltz, W. F.:
Assimilation of Surface-Based Boundary Layer Profiler Observations during a
Cool-Season Weather Event Using an Observing System Simulation Experiment.
Part II: Forecast Assessment, Mon. Weather Rev., 139, 2327–2346,
https://doi.org/10.1175/2011MWR3623.1, 2011. a
Hudson, S. R. and Brandt, R. E.: A look at the surface-based temperature
inversion on the Antarctic Plateau, J. Climate, 18, 1673–1696, 2005. a
Illingworth, A. J., Cimini, D., Haefele, A., Haeffelin, M., Hervo, M.,
Kotthaus, S., Löhnert, U., Martinet, P., Mattis, I., O'Connor, E. J.,
and Potthast, R.: How Can Existing Ground-Based Profiling Instruments
Improve European Weather Forecasts?, B. Am. Meteorol.
Soc., 100, 605–619, https://doi.org/10.1175/BAMS-D-17-0231.1, 2019. a
Izett, J. G., Schilperoort, B., Coenders-Gerrits, M., Baas, P., Bosveld, F. C.,
and van de Wiel, B. J. H.: Missed Fog?, Bound.-Lay. Meteorol. 2019,
173, 289–309, https://doi.org/10.1007/S10546-019-00462-3, 2019. a, b, c
Jacob, J. D., Chilson, P. B., Houston, A. L., and Smith, S. W.: Considerations
for atmospheric measurements with small unmanned aircraft systems,
Atmosphere, 9, 252, https://doi.org/10.3390/atmos9070252, 2018. a
Jensen, M. P., Holdridge, D. J., Survo, P., Lehtinen, R., Baxter, S., Toto, T., and Johnson, K. L.: Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site, Atmos. Meas. Tech., 9, 3115–3129, https://doi.org/10.5194/amt-9-3115-2016, 2016. a, b
Klein, P., Bonin, T. A., Newman, J. F., Turner, D. D., Chilson, P. B.,
Wainwright, C. E., Blumberg, W. G., Mishra, S., Carney, M., Jacacobsen,
E. P., Wharton, S., and Newsom, R. K.: LABLE: A Multi-Institutional,
Student-Led, Atmospheric Boundary Layer Experiment, B. Am.
Meteorol. Soc., 96, 1743–1764, https://doi.org/10.1175/BAMS-D-13-00267.1,
2015. a, b
Knuteson, R., Revercomb, H., Best, F., Ciganovich, N., Dedecker, R., Dirkx, T.,
Ellington, S., Feltz, W., Garcia, R., Howell, H.,
Smith, W. L., Short, J. F., and Tobin, D. C.: Atmospheric emitted
radiance interferometer. Part I: Instrument design, J. Atmos.
Ocean. Technol., 21, 1763–1776, 2004a. a, b, c, d
Knuteson, R., Revercomb, H., Best, F., Ciganovich, N., Dedecker, R., Dirkx, T.,
Ellington, S., Feltz, W., Garcia, R., Howell, H., and Smith, W. L.: Atmospheric emitted
radiance interferometer. Part II: Instrument design, J. Atmos.
Ocean. Technol., 21, 1763–1776, 2004b. a
Koenigk, T., Key, J., and Vihma, T.: Climate change in the Arctic, in: Physics
and chemistry of the Arctic atmosphere, 673–705, https://doi.org/10.1007/978-3-030-33566-3_11, Springer, 2020. a
Liljegren, J. C.: Automatic self-calibration of ARM microwave radiometers,
Microw. Rad. Remote Sens. Earth’s Surf.
Atmos., 433, 433–443, 2000. a
Löhnert, U. and Maier, O.: Operational profiling of temperature using ground-based microwave radiometry at Payerne: prospects and challenges, Atmos. Meas. Tech., 5, 1121–1134, https://doi.org/10.5194/amt-5-1121-2012, 2012. a, b, c, d
Löhnert, U., Turner, D. D., and Crewell, S.: Ground-Based Temperature
and Humidity Profiling Using Spectral Infrared and Microwave Observations.
Part I: Simulated Retrieval Performance in Clear-Sky Conditions, J.
Appl. Meteorol. Climatol., 48, 1017–1032,
https://doi.org/10.1175/2008JAMC2060.1, 2009. a, b, c, d, e, f
Marke, T., Ebell, K., Löhnert, U., and Turner, D. D.: Statistical
retrieval of thin liquid cloud microphysical properties using ground-based
infrared and microwave observations, J. Geophys. Res.-Atmos., 121, 14558–14573, https://doi.org/10.1002/2016JD025667, 2016. a, b, c
Markowicz, K., Flatau, P., Kardas, A., Remiszewska, J., Stelmaszczyk, K., and
Woeste, L.: Ceilometer retrieval of the boundary layer vertical aerosol
extinction structure, J. Atmos. Ocean. Technol., 25,
928–944, 2008. a
Martinet, P., Cimini, D., De Angelis, F., Canut, G., Unger, V., Guillot, R., Tzanos, D., and Paci, A.: Combining ground-based microwave radiometer and the AROME convective scale model through 1DVAR retrievals in complex terrain: an Alpine valley case study, Atmos. Meas. Tech., 10, 3385–3402, https://doi.org/10.5194/amt-10-3385-2017, 2017. a
Martinet, P., Cimini, D., Burnet, F., Ménétrier, B., Michel, Y., and Unger, V.: Improvement of numerical weather prediction model analysis during fog conditions through the assimilation of ground-based microwave radiometer observations: a 1D-Var study, Atmos. Meas. Tech., 13, 6593–6611, https://doi.org/10.5194/amt-13-6593-2020, 2020. a, b, c, d, e
McFarquhar, G. M., Smith, E., Pillar-Little, E. A., Brewster, K., Chilson,
P. B., Lee, T. R., Waugh, S., Yussouf, N., Wang, X., Xue, M., Gijs de Boer, Gibbs, J. A., Fiebrich, C., Baker, B.,
Brotzge, J., Carr, F., Christophersen, H., Fengler, M., Hall, P.,
Hock, T., Houston, A., Huck, R., Jacob, J., Palmer, R.,
Quinn, P. K., Wagner, M., Zhang, Y. (Rockee), and Hawk, D.: Current
and future uses of UAS for improved forecasts/warnings and scientific
studies, B. Am. Meteorol. Soc., 101, E1322–E1328,
2020. a
Miller, N. B., Shupe, M. D., Cox, C. J., Walden, V. P., Turner, D. D., and
Steffen, K.: Cloud radiative forcing at Summit, Greenland, J.
Climate, 28, 6267–6280, 2015. a
Moran, K. P., Martner, B. E., Post, M., Kropfli, R. A., Welsh, D. C., and
Widener, K. B.: An unattended cloud-profiling radar for use in climate
research, B. Am. Meteorol. Soc., 79, 443–456,
1998. a
Münkel, C., Eresmaa, N., Räsänen, J., and Karppinen, A.:
Retrieval of mixing height and dust concentration with lidar ceilometer,
Bound.-Lay. Meteorol., 124, 117–128,
https://doi.org/10.1007/S10546-006-9103-3, 2006. a
Newsom, R. K., Turner, D. D., Lehtinen, R., Münkel, C., Kallio, J., and
Roininen, R.: Evaluation of a Compact Broadband Differential Absorption
Lidar for Routine Water Vapor Profiling in the Atmospheric Boundary Layer,
J. Atmos. Ocean. Technol., 37, 47–65,
https://doi.org/10.1175/JTECH-D-18-0102.1, 2020. a
NSIDC: Europe's warm air spikes Greenland melting to record levels., National
Snow and Ice Data Center, http://nsidc.org/greenland-today/2021/08/rain-at-the-summit-of-greenland/ (last access: October 2021),
2019. a
NSIDC: Rain at the summit of Greenland., National Snow and Ice Data Center, http://nsidc.org/greenland-today/2021/08/rain-at-the-summit-of-greenland/, last access: October 2021. a
Oke, T. R.: Boundary layer climates, Routledge, Google Scholar,
eISBN 1134951345, ISBN-13 9781134951345, 2002. a
Otkin, J. A., Hartung, D. C., Turner, D. D., Petersen, R. A., Feltz, W. F., and
Janzon, E.: Assimilation of Surface-Based Boundary Layer Profiler
Observations during a Cool-Season Weather Event Using an Observing System
Simulation Experiment. Part I: Analysis Impact, Mon. Weather Rev., 139,
2309–2326, https://doi.org/10.1175/2011MWR3622.1, 2011. a
Panahi, R., Ng, A. K., Afenyo, M. K., and Haeri, F.: A novel approach in
probabilistic quantification of risks within the context of maritime supply
chain: The case of extreme weather events in the Arctic, Acc. Anal.
Prev., 144, 105673, https://doi.org/10.1016/j.aap.2020.105673, 2020. a, b
Price, J.: Radiation Fog. Part I: Observations of Stability and Drop Size
Distributions, Bound.-Lay. Meteorol., 139, 167–191,
https://doi.org/10.1007/S10546-010-9580-2, 2011. a, b, c
Rose, T., Crewell, S., Löhnert, U., and Simmer, C.: A network suitable
microwave radiometer for operational monitoring of the cloudy atmosphere,
Atmos. Res., 75, 183–200, https://doi.org/10.1016/j.atmosres.2004.12.005,
2005. a, b, c
Rowe, P. M., Neshyba, S., and Walden, V. P.: Radiative consequences of low-temperature infrared refractive indices for supercooled water clouds, Atmos. Chem. Phys., 13, 11925–11933, https://doi.org/10.5194/acp-13-11925-2013, 2013. a
Rüfenacht, R., Haefele, A., Pospichal, B., Cimini, D., Bircher-Adrot, S.,
Turp, M., and Sugier, J.: EUMETNET opens to microwave radiometers for
operational thermodynamical profiling in Europe, B. Atmos.
Sci. Technol., 2, 1–5, https://doi.org/10.1007/S42865-021-00033-W,
2021. a
Savijärvi, H.: Radiative and turbulent heating rates in the clear-air
boundary layer, Q. J. Roy. Meteorol. Soc., 132,
147–161, https://doi.org/10.1256/QJ.05.61, 2006. a
Schmeisser, L., Backman, J., Ogren, J. A., Andrews, E., Asmi, E., Starkweather, S., Uttal, T., Fiebig, M., Sharma, S., Eleftheriadis, K., Vratolis, S., Bergin, M., Tunved, P., and Jefferson, A.: Seasonality of aerosol optical properties in the Arctic, Atmos. Chem. Phys., 18, 11599–11622, https://doi.org/10.5194/acp-18-11599-2018, 2018. a
Sheppard, B. and Joe, P.: Performance of the precipitation occurrence sensor
system as a precipitation gauge, J. Atmos. Ocean.
Technol., 25, 196–212, 2008. a
Shupe, M.: Millimeter Cloud Radar measurements taken at Summit Station, Greenland, 2019, Artic Data Center [data set], https://doi.org/10.18739/A2Q52FD4V, 2020a. a
Shupe, M.: Precipitation Occurrence Sensor System measurements taken at Summit Station, Greenland, 2019, Artic Data Center [data set], https://doi.org/10.18739/A2GQ6R30G, 2020b. a
Shupe, M. D., Turner, D. D., Walden, V. P., Bennartz, R., Cadeddu, M. P.,
Castellani, B. B., Cox, C. J., Hudak, D. R., Kulie, M. S., Miller, N. B.,
Neely, R. R., Neff, W. D., Rowe, P. M., Others, Neely, R. R., Neff, W. D.,
and Rowe, P. M.: High and dry: New observations of tropospheric and cloud
properties above the Greenland Ice Sheet, B. Am.
Meteorol. Soc., 94, 169–186, https://doi.org/10.1175/BAMS-D-11-00249.1, 2013. a, b, c, d
Smith, E. N., Greene, B. R., Bell, T. M., Blumberg, W. G., Wakefield, R., Reif,
D., Niu, Q., Wang, Q., and Turner, D. D.: Evaluation and Applications of
Multi-Instrument Boundary-Layer Thermodynamic Retrievals, Bound.-Lay.
Meteorol., 181, 95–123, https://doi.org/10.1007/S10546-021-00640-2, 2021. a
Solomon, A., Shupe, M. D., and Miller, N. B.: Cloud–atmospheric boundary
layer–surface interactions on the Greenland Ice Sheet during the July 2012
extreme melt event, J. Climate, 30, 3237–3252, 2017. a
Steeneveld, G. J., Ronda, R. J., and Holtslag, A. A. M.: The Challenge of
Forecasting the Onset and Development of Radiation Fog Using Mesoscale
Atmospheric Models, Bound.-Lay. Meteorol., 154, 265–289,
https://doi.org/10.1007/S10546-014-9973-8, 2014. a, b
Stillwell, R. A., Spuler, S. M., Hayman, M., Repasky, K. S., and Bunn, C. E.:
Demonstration of a combined differential absorption and high spectral
resolution lidar for profiling atmospheric temperature, Opt. Express, 28,
71–93, 2020. a
Tardif, R.: The impact of vertical resolution in the explicit numerical
forecasting of radiation fog: A case study, in: Fog and boundary layer
clouds: Fog visibility and forecasting, 1221–1240, Springer, https://doi.org/10.1007/978-3-7643-8419-7_8, 2007. a
Taylor, K. E.: Summarizing multiple aspects of model performance in a single
diagram, J. Geophys. Res.-Atmos., 106, 7183–7192,
https://doi.org/10.1029/2000JD900719, 2001. a
Temimi, M., Fonseca, R. M., Nelli, N. R., Valappil, V. K., Weston, M. J.,
Thota, M. S., Wehbe, Y., and Yousef, L.: On the analysis of ground-based
microwave radiometer data during fog conditions, Atmos. Res., 231,
104652, https://doi.org/10.1016/J.ATMOSRES.2019.104652, 2020. a
Toledo, F., Haeffelin, M., Wærsted, E., and Dupont, J.-C.: A new conceptual model for adiabatic fog, Atmos. Chem. Phys., 21, 13099–13117, https://doi.org/10.5194/acp-21-13099-2021, 2021. a, b
Turner, D. and Bennartz, R.: Microwave Radiometer measurements of sky brightness temperature taken at Summit Station, Greenland, 2019, Artic Data Center [data set], https://doi.org/10.18739/A2TX3568P, 2020. a
Turner, D., Knuteson, R., Revercomb, H., Lo, C., and Dedecker, R.: Noise
reduction of Atmospheric Emitted Radiance Interferometer (AERI) observations
using principal component analysis, J. Atmos. Ocean.
Technol., 23, 1223–1238, 2006. a
Turner, D. D.: Arctic mixed-phase cloud properties from AERI lidar
observations: Algorithm and results from SHEBA, J. Appl.
Meteorol., 44, 427–444, https://doi.org/10.1175/JAM2208.1, 2005. a
Turner, D. D. and Blumberg, W. G.: Improvements to the AERIoe thermodynamic
profile retrieval algorithm, IEEE J. Select. Top. Appl.
Earth Observ. Remote Sens., 12, 1339–1354,
https://doi.org/10.1109/JSTARS.2018.2874968, 2019. a
Turner, D. D. and Eloranta, E. W.: Validating mixed-phase cloud optical depth
retrieved from infrared observations with high spectral resolution lidar,
IEEE Geosci. Remote Sens. Lett., 5, 285–288,
https://doi.org/10.1109/LGRS.2008.915940, 2008. a
Turner, D. D. and Löhnert, U.: Information Content and Uncertainties in
Thermodynamic Profiles and Liquid Cloud Properties Retrieved from the
Ground-Based Atmospheric Emitted Radiance Interferometer (AERI), J.
Appl. Meteorol. Climatol., 53, 752–771,
https://doi.org/10.1175/JAMC-D-13-0126.1, 2014. a, b, c, d, e, f
Turner, D. D., Vogelmann, A., Austin, R. T., Barnard, J. C., Cady-Pereira, K.,
Chiu, J. C., Clough, S. A., Flynn, C., Khaiyer, M. M., Liljegren, J., Johnson, K.
Lin, B.,
Long, C.,
Marshak, A.,
Matrosov, S. Y.,
Mcfarlane, S. A.,
Miller, M.,
Min, Q.,
Minimis, P.,
O'Hirok, W.,
Wang, Z., and
Wiscombe, D. W.:
Thin liquid water clouds: Their importance and our challenge, B.
Am. Meteorol. Soc., 88, 177–190, 2007. a, b, c, d
Turner, D. D., Kneifel, S., and Cadeddu, M. P.: An Improved Liquid Water
Absorption Model at Microwave Frequencies for Supercooled Liquid Water
Clouds, J. Atmos. Ocean. Technol., 33, 33–44,
https://doi.org/10.1175/JTECH-D-15-0074.1, 2016. a, b
Van Tricht, K., Gorodetskaya, I. V., Lhermitte, S., Turner, D. D., Schween, J. H., and Van Lipzig, N. P. M.: An improved algorithm for polar cloud-base detection by ceilometer over the ice sheets, Atmos. Meas. Tech., 7, 1153–1167, https://doi.org/10.5194/amt-7-1153-2014, 2014. a
Von P. Walden and Shupe, M.: Radiosonde temperature and humidity profiles taken at Summit Station, Greenland, 2019, Artic Data Center [data set], https://doi.org/10.18739/A20P0WR53, 2020.
a
Wærsted, E. G., Haeffelin, M., Dupont, J.-C., Delanoë, J., and Dubuisson, P.: Radiation in fog: quantification of the impact on fog liquid water based on ground-based remote sensing, Atmos. Chem. Phys., 17, 10811–10835, https://doi.org/10.5194/acp-17-10811-2017, 2017. a
Walden, V., Town, M., Halter, B., and Storey, J.: First measurements of the
infrared sky brightness at Dome C, Antarctica, Publications of the
Astronomical Society of the Pacific, 117, 300, 2005. a
Westerhuis, S. and Fuhrer, O.: A Locally Smoothed Terrain-Following Vertical
Coordinate to Improve the Simulation of Fog and Low Stratus in Numerical
Weather Prediction Models, J. Adv. Model. Earth Syst.,
13, e2020MS002437, https://doi.org/10.1029/2020MS002437, 2021. a
Wilcox, E. M.: Multi-spectral Remote Sensing of Sea Fog with Simultaneous
Passive Infrared and Microwave Sensors, Marine Fog: Challenges and Advancements in Observations, Modeling, and Forecasting, Springer Atmospheric Sciences, Springer, Cham, 511–526,
https://doi.org/10.1007/978-3-319-45229-6_11, 2017. a
Wu, D., Lu, B., Zhang, T., and Yan, F.: A method of detecting sea fogs using
CALIOP data and its application to improve MODIS-based sea fog detection,
J. Quant. Spectrosc. Rad. Transf., 153, 88–94,
https://doi.org/10.1016/J.JQSRT.2014.09.021, 2015. a
Wulfmeyer, V., Hardesty, R. M., Turner, D. D., Behrendt, A., Cadeddu, M. P.,
Girolamo, P. D., Schlüssel, P., Baelen, J. V., and Zus, F.: A review
of the remote sensing of lower tropospheric thermodynamic profiles and its
indispensable role for the understanding and the simulation of water and
energy cycles, Rev. Geophys., 53, 819–895,
https://doi.org/10.1002/2014RG000476, 2015. a
Yi, L., Li, K.-F., Chen, X., and Tung, K.-K.: Arctic Fog Detection Using
Infrared Spectral Measurements, J. Atmos. Ocean.
Technol., 36, 1643–1656, https://doi.org/10.1175/JTECH-D-18-0100.1, 2019. a
Short summary
Fog formation is highly sensitive to near-surface temperatures and humidity profiles. Passive remote sensing instruments can provide continuous measurements of the vertical temperature and humidity profiles and liquid water content, which can improve fog forecasts. Here we compare the performance of collocated infrared and microwave remote sensing instruments and demonstrate that the infrared instrument is especially sensitive to the onset of thin radiation fog.
Fog formation is highly sensitive to near-surface temperatures and humidity profiles. Passive...