Thermodynamic characteristics of marine atmospheric boundary layer across frontal regions of the Indian Ocean Sector of the Southern Ocean based on three field campaigns

Alexander, 2021, Mixed-phase clouds and precipitation in Southern Ocean cyclones and cloud systems observed poleward of 64°S by ship-based cloud radar and lidar, J. Geophys. Res. Atmos., 126, 10.1029/2020JD033626 Anil Kumar, 2015, Variability of fronts, freshwater input, and chlorophyll in the Indian Ocean sector of the Southern Ocean, N. Z. J. Mar. Freshw. Res., 49, 20, 10.1080/00288330.2014.924972 Behrangi, 2020, A new estimate for oceanic precipitation amount and distribution using complementary precipitation observations from space and comparison with GPCP, Environ. Res. Lett., 15, 10.1088/1748-9326/abc6d1 Belkin, 1996, Southern Ocean fronts from the Greenwich meridian to Tasmania, J. Geophys. Res. Oceans, 101, 3675, 10.1029/95JC02750 Betts, 1982, Saturation point analysis of moist convective overturning, J. Atmos. Sci., 39, 1484, 10.1175/1520-0469(1982)039<1484:SPAOMC>2.0.CO;2 Betts, 1987, Conserved variable analysis of the convective boundary layer thermodynamic structure over the tropical oceans, J. Atmos. Sci., 44, 83, 10.1175/1520-0469(1987)044<0083:CVAOTC>2.0.CO;2 Bischoff, 2014, Configuration of a Southern Ocean Storm Track, J. Phys. Oceanograph., 44, 3072, 10.1175/JPO-D-14-0062.1 Bodas-Salcedo, 2014, Origins of the solar radiation biases over the Southern Ocean in CFMIP2 models, J. Clim., 27, 41, 10.1175/JCLI-D-13-00169.1 Boebel, 2003, The Cape Cauldron: a regime of turbulent inter-ocean exchange, Deep-Sea Res. II Top. Stud. Oceanogr., 50, 57, 10.1016/S0967-0645(02)00379-X Boers, 1998, Microphysical and short-wave radiative structure of stratocumulus clouds over the Southern Ocean: Summer results and seasonal differences, Q. J. R. Meteorol. Soc., 124, 151, 10.1002/qj.49712454507 Bolton, 1980, The computation of equivalent potential temperature, Mon. Weather Rev., 108, 1046, 10.1175/1520-0493(1980)108<1046:TCOEPT>2.0.CO;2 Bretherton, 1997, Convection in stratocumulus-topped atmospheric boundary layers, 127 Bretherton, 1997, Moisture transport, lower-tropospheric stability, and decoupling of cloud-topped boundary layers, J. Atmos. Sci., 54, 148, 10.1175/1520-0469(1997)054<0148:MTLTSA>2.0.CO;2 Carleton, 1997, Synoptic climatology, and intrahemispheric associations, of cold air mesocyclones in the Australasian sector, J. Geophys. Res.-Atmos., 102, 13873, 10.1029/96JD03357 Catto, 2012, Relating global precipitation to atmospheric fronts, Geophys. Res. Lett., 39, 10.1029/2012GL051736 Chapman, 2015, The Dynamics of Southern Ocean Storm Tracks, J. Phys. Oceanograph., 45, 884, 10.1175/JPO-D-14-0075.1 Chelton, 2001, Observations of coupling between surface wind stress and sea surface temperature in the eastern Tropical Pacific, J. Clim., 14, 1479, 10.1175/1520-0442(2001)014<1479:OOCBSW>2.0.CO;2 Chubb, 2016, Observations of high droplet number concentrations in Southern Ocean boundary layer clouds, Atmos. Chem. Phys., 16, 971, 10.5194/acp-16-971-2016 Connolley, 1996, The Antartic temperature inversion, Int. J. Climatol., 16, 1333, 10.1002/(SICI)1097-0088(199612)16:12<1333::AID-JOC96>3.0.CO;2-6 Couldrey, 2013, Remotely induced warming of Antarctic Bottom Water in the eastern Weddell gyre, Geophys. Res. Lett., 40, 2755, 10.1002/grl.50526 Deacon, 1937 Deser, 2015, The Role of Ocean–Atmosphere Coupling in the Zonal-Mean Atmospheric Response to Arctic Sea Ice Loss, J. Clim., 28, 2168, 10.1175/JCLI-D-14-00325.1 Divya, 2014, An advanced radiosonde system for aerospace applications, J. Atmos. Ocean. Technol., 31, 2067, 10.1175/JTECH-D-13-00050.1 Dong, 2015, Investigation of the marine boundary layer cloud and CCN properties under coupled and decoupled conditions over the Azores, J. Geophys. Res.-Atmos., 120, 6179, 10.1002/2014JD022939 Edson, 1999 Falga, 2022, The rise of Indian summer monsoon precipitation extremes and its correlation with long-term changes of climate and anthropogenic factors, Sci. Rep., 12, 11985, 10.1038/s41598-022-16240-0 Fawzy, 2020, Strategies for mitigation of climate change: a review, Environ. Chem. Lett., 18, 2069, 10.1007/s10311-020-01059-w Field, 2007, Precipitation and cloud structure in midlatitude cyclones, J. Clim., 20, 233, 10.1175/JCLI3998.1 Forbes, 2006, Observations of the depth of ice particle evaporation beneath frontal cloud to improve NWP modelling, Q. J. R. Meteorol. Soc., 132, 865, 10.1256/qj.04.187 Hamilton, 2006, Structure of the subtropical front in the Tasman Sea, Deep-Sea Res. I Oceanogr. Res. Pap., 53, 1989, 10.1016/j.dsr.2006.08.013 Hande, 2012, Observations of wind shear over the Southern Ocean, J. Geophys. Res.-Atmos., 117, 10.1029/2012JD017488 Haynes, 2011, Major characteristics of Southern Ocean cloud regimes and their effects on the energy budget, J. Clim., 24, 5061, 10.1175/2011JCLI4052.1 Hopkins, 2020, The impacts of ocean acidification on marine trace gases and the implications for atmospheric chemistry and climate, Proceed. Royal Soc. A., 476 Hoskins, 2005, A new perspective on southern hemisphere storm tracks, J. Clim., 18, 4108, 10.1175/JCLI3570.1 Huang, 2005, Ocean–Atmosphere Interactions in the Tropical and Subtropical Atlantic Ocean, J. Clim., 18, 1652, 10.1175/JCLI3368.1 Huang, 2012, The structure of low-altitude clouds over the Southern Ocean as seen by CLOUDSAT, J. Clim., 25, 2535, 10.1175/JCLI-D-11-00131.1 Huang, 2015, Evaluation of boundary-layer cloud forecasts over the Southern Ocean in a limited-area numerical weather prediction system using in situ, space-borne and ground-based observations, Q. J. R. Meteorol. Soc., 141, 2259, 10.1002/qj.2519 Huang, 2015, A-Train observations of maritime midlatitude storm-track cloud systems: comparing the Southern Ocean against the North Atlantic, J. Clim., 28, 1920, 10.1175/JCLI-D-14-00169.1 Hyder, 2018, Critical Southern Ocean climate model biases traced to atmospheric model cloud errors, Nat. Commun., 9, 3625, 10.1038/s41467-018-05634-2 IPCC, 2014 Irving, 2010, Mesoscale cyclone activity over the ice-free Southern Ocean: 1999–2008, J. Clim., 23, 5404, 10.1175/2010JCLI3628.1 Jensen, 2000, Precipitation in marine cumulus and stratocumulus.: part I: Thermodynamic and dynamic observations of closed cell circulations and cumulus bands, Atmos. Res., 54, 117, 10.1016/S0169-8095(00)00040-5 Jones, 2011, Coupled vs. decoupled boundary layers in VOCALS-REx, Atmos. Chem. Phys., 11, 7143, 10.5194/acp-11-7143-2011 Jullien, 2020, Synoptic conditions and atmospheric moisture pathways associated with virga and precipitation over coastal Adélie Land in Antarctica, Cryosphere, 14, 1685, 10.5194/tc-14-1685-2020 Kawai, 2015, Characteristics of the cloud top heights of marine boundary layer clouds and the frequency of marine fog over mid-latitudes, J. Meteorol. Soc. Japan Ser. II., 93, 613, 10.2151/jmsj.2015-045 Klein, 1993, The seasonal cycle of low stratiform clouds, J. Clim., 6, 1587, 10.1175/1520-0442(1993)006<1587:TSCOLS>2.0.CO;2 Kostianoy, 2004, Fronts in the Southern Indian Ocean as inferred from satellite sea surface temperature data, J. Mar. Syst., 45, 55, 10.1016/j.jmarsys.2003.09.004 Kuma, 2020, Evaluation of Southern Ocean cloud in the HadGEM3 general circulation model and MERRA-2 reanalysis using ship-based observations, Atmos. Chem. Phys., 20, 6607, 10.5194/acp-20-6607-2020 Lang, 2018, Characteristics of the marine atmospheric boundary layer over the Southern Ocean in response to the synoptic forcing, J. Geophys. Res.-Atmos., 123, 7799, 10.1029/2018JD028700 Lang, 2021, Shallow convection and precipitation over the Southern Ocean: a case study during the CAPRICORN 2016 field campaign, J. Geophys. Res.-Atmos., 126, 10.1029/2020JD034088 Lee, 2021, Future global climate: scenario-based projections and near-term information Li, 2015, Synergistic use of Satellite Observations and Numerical Weather Model to Study Atmospheric Occluded Fronts, IEEE Trans. Geosci. Remote Sens., 53, 5269, 10.1109/TGRS.2015.2420312 Liu, 2013, Ensemble data assimilation in a simple coupled climate model: the role of ocean-atmosphere interaction, Adv. Atmos. Sci., 30, 1235, 10.1007/s00376-013-2268-z Long, 2021, Strong Southern Ocean carbon uptake evident in airborne observations, Science., 374, 1275, 10.1126/science.abi4355 Lutjeharms, 1987, Shedding of an Agulhas ring observed at sea, Nature., 325, 138, 10.1038/325138a0 Lutjeharms, 1984, Southern Ocean thermal fronts south of Africa, Deep Sea Res. Part A Oceanograph. Res. Papers., 31, 1461, 10.1016/0198-0149(84)90082-7 Lutjeharms, 1988, Eddies at the subtropical convergence south of Africa, J. Phys. Oceanogr., 18, 761, 10.1175/1520-0485(1988)018<0761:EATSCS>2.0.CO;2 Lutjeharms, 1988, The Retroflection of the Agulhas current, J. Phys. Oceanogr., 18, 1570, 10.1175/1520-0485(1988)018<1570:TROTAC>2.0.CO;2 Mace, 2018, Clouds over the Southern Ocean as observed from the R/V investigator during CAPRICORN. Part I: Cloud Occurrence and phase Partitioning, J. Appl. Meteorol. Climatol., 57, 1783, 10.1175/JAMC-D-17-0194.1 Mace, 2009, A description of hydrometeor layer occurrence statistics derived from the first year of merged Cloudsat and CALIPSO data, J. Geophys. Res.-Atmos., 114, 10.1029/2007JD009755 Mace, 2020, On the frequency of occurrence of the ice phase in supercooled Southern Ocean low clouds derived from CALIPSO and CLOUDSAT, Geophys. Res. Lett., 47, 10.1029/2020GL087554 Mace, 2021, Mixed-phase clouds over the Southern Ocean as observed from satellite and surface based lidar and radar, J. Geophys. Res.-Atmos., 126, 10.1029/2021JD034569 Martin, 1995, Observations of the Interaction between Cumulus Clouds and Warm Stratocumulus Clouds in the Marine Boundary Layer during ASTEX, J. Atmos. Sci., 52, 2902, 10.1175/1520-0469(1995)052<2902:OOTIBC>2.0.CO;2 McCoy, 2015, Mixed-phase cloud physics and Southern Ocean cloud feedback in climate models, J. Geophys. Res.-Atmos., 120, 9539, 10.1002/2015JD023603 McFarquhar, 2021, Observations of clouds, aerosols, precipitation, and surface radiation over the Southern Ocean: an overview of CAPRICORN, MARCUS, MICRE, and SOCRATES, Bull. Am. Meteorol. Soc., 102, 894, 10.1175/BAMS-D-20-0132.1 McGibbon, 2017, Skill of ship-following large-eddy simulations in reproducing MAGIC observations across the Northeast Pacific stratocumulus to cumulus transition region, J. Adv. Model. Earth Sys., 9, 810, 10.1002/2017MS000924 Meijers, 2010, The circulation and water masses of the Antarctic shelf and continental slope between 30∘E and 80∘E, Deep-Sea Res. II Top. Stud. Oceanogr., 57, 723, 10.1016/j.dsr2.2009.04.019 Messager, 2012, Marine atmospheric boundary layer over some Southern Ocean fronts during the IPY BGH 2008 cruise, Ocean Sci., 8, 1001, 10.5194/os-8-1001-2012 Miller, 1995, Surface-based observations of Mesoscale Cumulus–Stratocumulus Interaction during ASTEX, J. Atmos. Sci., 52, 2809, 10.1175/1520-0469(1995)052<2809:SBOOMC>2.0.CO;2 Moore, 1999, Location and dynamics of the Antarctic Polar Front from satellite sea surface temperature data, J. Geophys. Res. Oceans, 104, 3059, 10.1029/1998JC900032 Morrow, 2004, Divergent pathways of cyclonic and anti-cyclonic ocean eddies, Geophys. Res. Lett., 31, 10.1029/2004GL020974 Muhlbauer, 2014, Climatology of stratocumulus cloud morphologies: microphysical properties and radiative effects, Atmos. Chem. Phys., 14, 6695, 10.5194/acp-14-6695-2014 Naud, 2014, Evaluation of ERA-Interim and MERRA cloudiness in the Southern Ocean, J. Clim., 27, 2109, 10.1175/JCLI-D-13-00432.1 Naud, 2016, The relationship between boundary layer stability and cloud cover in the post-cold-frontal region, J. Clim., 29, 8129, 10.1175/JCLI-D-15-0700.1 Nicholls, 1984, The dynamics of stratocumulus: Aircraft observations and comparisons with a mixed layer model, Q. J. R. Meteorol. Soc., 110, 783, 10.1002/qj.49711046603 Nobre, 2012, Coupled Ocean–Atmosphere Variations over the South Atlantic Ocean, J. Clim., 25, 6349, 10.1175/JCLI-D-11-00444.1 Orsi, 1995, On the meridional extent and fronts of the Antarctic Circumpolar current, Deep-Sea Res. I Oceanogr. Res. Pap., 42, 641, 10.1016/0967-0637(95)00021-W Orsi, 1999, Circulation, mixing, and production of Antarctic Bottom Water, Prog. Oceanogr., 43, 55, 10.1016/S0079-6611(99)00004-X Parish, 2003, Diagnosis of the katabatic wind influence on the wintertime Antarctic surface wind field from numerical simulations, Mon. Weather Rev., 131, 1128, 10.1175/1520-0493(2003)131<1128:DOTKWI>2.0.CO;2 Parish, 2003, The role of katabatic winds on the Antarctic surface wind regime, Mon. Weather Rev., 131, 317, 10.1175/1520-0493(2003)131<0317:TROKWO>2.0.CO;2 Petrie, 2015, Atmospheric impact of Arctic Sea Ice Loss in a Coupled Ocean–Atmosphere Simulation, J. Clim., 28, 9606, 10.1175/JCLI-D-15-0316.1 Phillips, 2000, Eddy variability and energetics from direct current measurements in the Antarctic circumpolar current south of Australia, J. Phys. Oceanogr., 30, 3050, 10.1175/1520-0485(2000)030<3050:EVAEFD>2.0.CO;2 Pierrehumbert, 1995, Baroclinic instability, Annu. Rev. Fluid Mech., 27, 419, 10.1146/annurev.fl.27.010195.002223 Rouault, 2000, Air-sea exchange over an Agulhas eddy at the subtropical convergence, Glob. Atmosp. Ocean Syst., 7, 125 Russell, 1998, Bidirectional mixing in an ACE 1 marine boundary layer overlain by a second turbulent layer, J. Geophys. Res.-Atmos., 103, 16411, 10.1029/97JD03437 Sallée, 2018, Southern Ocean Warming, Oceanography., 31, 52, 10.5670/oceanog.2018.215 Sallée, 2008, Response of the Antarctic Circumpolar current to atmospheric variability, J. Clim., 21, 3020, 10.1175/2007JCLI1702.1 Sallée, 2013, Assessment of Southern Ocean water mass circulation and characteristics in CMIP5 models: Historical bias and forcing response, J. Geophys. Res. Oceans, 118, 1830, 10.1002/jgrc.20135 Schmale, 2019, Overview of the Antarctic Circumnavigation Expedition: Study of preindustrial-like aerosols and their climate effects (ACE-SPACE), Bull. Am. Meteorol. Soc., 100, 2260, 10.1175/BAMS-D-18-0187.1 Schuddeboom, 2019, Cluster-based evaluation of model compensating errors: a case study of cloud radiative effect in the Southern Ocean, Geophys. Res. Lett., 46, 3446, 10.1029/2018GL081686 Sen Gupta, 2009, Projected changes to the Southern Hemisphere Ocean and sea ice in the IPCC AR4 climate models, J. Clim., 22, 3047, 10.1175/2008JCLI2827.1 Simmonds, 2009, Biases in the calculation of Southern Hemisphere mean baroclinic eddy growth rate, Geophys. Res. Lett., 36, 10.1029/2008GL036320 Small, 2008, Air–sea interaction over ocean fronts and eddies, Dyn. Atmos. Oceans, 45, 274, 10.1016/j.dynatmoce.2008.01.001 Small, 2014, Storm track response to ocean fronts in a global high-resolution climate model, Clim. Dyn., 43, 805, 10.1007/s00382-013-1980-9 Smirnov, 2014, Investigating the Role of Ocean–Atmosphere Coupling in the North Pacific Ocean, J. Clim., 27, 592, 10.1175/JCLI-D-13-00123.1 Smith, 1984, Water masses and circulation in the region of Prydz Bay, Antarctica, Deep Sea Res. Part A Oceanograph. Res. Papers., 31, 1121, 10.1016/0198-0149(84)90016-5 Sokolov, 2002, Structure of Southern Ocean fronts at 140°E, J. Mar. Syst., 37, 151, 10.1016/S0924-7963(02)00200-2 Srivastava, 2007, Oxygen isotope and salinity variations in the Indian sector of the Southern Ocean, Geophys. Res. Lett., 34, 10.1029/2007GL031790 Stammer, 1998, On eddy characteristics, eddy transports, and mean flow properties, J. Phys. Oceanogr., 28, 727, 10.1175/1520-0485(1998)028<0727:OECETA>2.0.CO;2 Stevens, 2000, Cloud transitions and decoupling in shear-free stratocumulus-topped boundary layers, Geophys. Res. Lett., 27, 2557, 10.1029/1999GL011257 Stott, 2010, 1, 192 Stull, 1988 Subrahamanyam, 2003, Structural characteristics of marine atmospheric boundary layer (MABL) and its associated dynamics over the central Arabian Sea during INDOEX, ifp-99 campaign, Curr. Sci., 85, 1334 Swart, 2018, Recent Southern Ocean warming and freshening driven by greenhouse gas emissions and ozone depletion, Nat. Geosci., 11, 836, 10.1038/s41561-018-0226-1 Talley, 2011, Southern Ocean, 437 Thompson, 2011, Low frequency variability of Southern Ocean jets, J. Geophys. Res. Oceans, 116, 10.1029/2010JC006749 Timbal, 2013, The relationship between the decline of Southeastern Australian rainfall and the strengthening of the subtropical ridge, Int. J. Climatol., 33, 1021, 10.1002/joc.3492 Trenberth, 2011, Changes in precipitation with climate change, Clim. Res., 47, 123, 10.3354/cr00953 Truong, 2020, A climatology of the marine atmospheric boundary layer over the Southern Ocean from four field campaigns during 2016–2018, J. Geophys. Res.-Atmos., 125, 10.1029/2020JD033214 Vignon, 2019, On the fine vertical structure of the low troposphere over the coastal margins of East Antarctica, Atmos. Chem. Phys., 19, 4659, 10.5194/acp-19-4659-2019 Vignon, 2021, Challenging and improving the simulation of mid-level mixed-phase clouds over the high-latitude Southern Ocean, J. Geophys. Res.-Atmos., 126, 10.1029/2020JD033490 Wall, 2017, Instantaneous Linkages between Clouds and Large-Scale Meteorology over the Southern Ocean in Observations and a climate Model, J. Clim., 30, 9455, 10.1175/JCLI-D-17-0156.1 Wang, 2015, A climatology of the precipitation over the Southern Ocean as observed at Macquarie Island, J. Appl. Meteorol. Climatol., 54, 2321, 10.1175/JAMC-D-14-0211.1 Wang, 2018, Global virga precipitation distribution derived from three spaceborne radars and its contribution to the false radiometer precipitation detection, Geophys. Res. Lett., 45, 4446, 10.1029/2018GL077891 Webster, 1999, Coupled ocean–atmosphere dynamics in the Indian Ocean during 1997–98, Nature., 401, 356, 10.1038/43848 Wood, 2004, Boundary layer depth, entrainment, and decoupling in the cloud-capped subtropical and tropical marine boundary layer, J. Clim., 17, 3576, 10.1175/1520-0442(2004)017<3576:BLDEAD>2.0.CO;2 Wood, 2006, On the relationship between stratiform low cloud cover and lower-tropospheric stability, J. Clim., 19, 6425, 10.1175/JCLI3988.1 Wood, 2018, Precipitating PBLs associated with optically thin veil clouds in the Sc-Cu transition, Geophys. Res. Lett., 45, 5177, 10.1029/2018GL077084 Xie, 2001, Far-reaching Effects of the Hawaiian Islands on the Pacific Ocean-Atmosphere System, Science., 292, 2057, 10.1126/science.1059781 Zeng, 2004, Marine atmospheric boundary layer height over the eastern pacific: Data analysis and model evaluation, J. Clim., 17, 4159, 10.1175/JCLI3190.1 Zheng, 2019, Episodes of Warm-Air Advection Causing Cloud-Surface Decoupling during the MARCUS, J. Geophys. Res.-Atmos., 124, 12227, 10.1029/2019JD030835 Zheng, 2019, Episodes of warm-air advection causing cloud-surface decoupling during the MARCUS, J. Geophys. Res.-Atmos., 124, 12227, 10.1029/2019JD030835 Zheng, 2018, Estimating the Decoupling Degree of Subtropical Marine Stratocumulus Decks from Satellite, J. Geophys. Res.-Atmos., 45 Zheng, 2018, The Relationships between Cloud Top Radiative Cooling rates, Surface Latent Heat Fluxes, and Cloud-Base Heights in Marine Stratocumulus, J. Geophys. Res.-Atmos., 123, 10.1029/2018JD028579