Bretherton, F. P.: Baroclinic instability and the short wavelength cut-off in terms of potential vorticity, Q. J. Roy. Meteorol. Soc., 92, 335–345, 1966. a
Bush, M., Allen, T., Bain, C., Boutle, I., Edwards, J., Finnenkoetter, A., Franklin, C., Hanley, K., Lean, H., Lock, A., Manners, J., Mittermaier, M., Morcrette, C., North, R., Petch, J., Short, C., Vosper, S., Walters, D., Webster, S., Weeks, M., Wilkinson, J., Wood, N., and Zerroukat, M.: The first Met Office Unified Model–JULES Regional Atmosphere and Land configuration, RAL1, Geosci. Model Dev., 13, 1999–2029,
https://doi.org/10.5194/gmd-13-1999-2020, 2020.
a,
b
Businger, S.: The synoptic climatology of polar low outbreaks, Tellus A, 37, 419–432, 1985. a
Chang, C.-P. and Wong, T. S.: Rare typhoon development near the Equator, Recent Progress in Atmospheric Sciences: Applications to the Asia-Pacific Region, World Scientific, Singapore, 172–181,
https://doi.org/10.1142/9789812818911_0010, 2008.
a,
b
Chang, C.-P., Erickson, J. E., and Lau, K. M.: Northeasterly cold surges and near-equatorial disturbances over the winter MONEX area during December 1974. Part I: Synoptic aspects, Mon. Weather Rev., 107, 812–829, 1979.
a,
b
Chang, C.-P., Chen, G. T., Gerish, T. E., and Chou, L. U.: Structure of cyclonic circulations near Borneo during Winter MONEX, Report of the International Conference on the Scientific Results of the Monsoon Experiment, Denpasar, Bali, Indonesia, World Meteorological Organization, Geneva, Section 5, 21–24, 1982.
a,
b,
c,
d,
e
Chang, C.-P., Liu, C.-H., and Kuo, H.-C.: Typhoon Vamei: an equatorial tropical cyclone formation, Geophys. Res. Lett., 30, 1150,
https://doi.org/10.1029/2002GL016365, 2003.
a,
b
Chang, C.-P., Harr, P. A., and Chen, H.-J.: Synoptic disturbances over the equatorial South China Sea and western Maritime Continent during boreal winter, Mon. Weather Rev., 133, 489–503, 2005a.
a,
b,
c,
d,
e,
f,
g
Chang, C.-P., Wang, Z., McBride, J. L., and Liu, C.-H.: Annual cycle of Southeast Asia – Maritime Continent rainfall and the asymmetric monsoon transition, J. Climate, 18, 287–301, 2005b. a
Cheang, B. K.: Synoptic features and structure of some equatorial vortices over the South China Sea in the Malaysian region during the winter monsoon, December 1973, Pure Appl. Geophys, 115, 1303–1333, 1977.
a,
b,
c
Chen, T.-C., Yen, M.-C., Huang, W.-R., and Gallus Jr., W. A.: An East Asian cold surge: Case study, Mon. Weather Rev., 130, 2271–2290, 2002.
a,
b
Chen, T.-C., Tsay, J.-D., Yen, M.-C., and Matsumoto, J.: The winter rainfall of Malaysia, J. Climate, 26, 936–958, 2013.
a,
b,
c
Chen, T.-C., Tsay, J.-D., Matsumoto, J., and Alpert, J.: Development and formation mechanism of the Southeast Asian winter heavy rainfall events around the South China Sea. Part I: Formation and propagation of cold surge vortex, J. Climate, 28, 1417–1443, 2015a.
a,
b,
c
Chen, T.-C., Tsay, J.-D., Matsumoto, J., and Alpert, J.: Development and formation mechanism of the Southeast Asian winter heavy rainfall events around the South China Sea. Part II: Multiple interactions, J. Climate, 28, 1444–1464, 2015b. a
Clark, D. B., Mercado, L. M., Sitch, S., Jones, C. D., Gedney, N., Best, M. J., Pryor, M., Rooney, G. G., Essery, R. L. H., Blyth, E., Boucher, O., Harding, R. J., Huntingford, C., and Cox, P. M.: The Joint UK Land Environment Simulator (JULES), model description – Part 2: Carbon fluxes and vegetation dynamics, Geosci. Model Dev., 4, 701–722,
https://doi.org/10.5194/gmd-4-701-2011, 2011.
a
Cullen, M. J. P.: The unified forecast/climate model, Meteorol. Mag., 122, 81–94, 1993. a
Cullen, M. J. P.: The use of semigeostrophic theory to diagnose the behaviour of an atmospheric GCM, Fluids, 3, 72,
https://doi.org/10.3390/fluids3040072, 2018.
a,
b,
c,
d,
e,
f
Davis, C. A.: A potential-vorticity diagnosis of the importance of initial structure and condensational heating in observed extratropical cyclogenesis, Mon. Weather Rev., 120, 2409–2428, 1992. a
Dee, D. P. and Coauthors: The ERA-Interim reanalysis – configuration and performance of the data assmilation system, Q. J. Roy. Meteorol. Soc., 137, 553–597, 2011. a
De Vries, H., Methven, J., Frame, T. H. A., and Hoskins, B. J.: Baroclinic waves with parametrized effects of moisture interpreted using Rossby wave components, J. Atmos. Sci., 67, 2766–2784, 2010.
a,
b,
c
Hardy, S., Methven, J., Schwendike, J., Harvey, B. J., and Cullen, M.: Examining the dynamics of a Borneo vortex using a balance approximation tool, Zenodo [code],
https://doi.org/10.5281/zenodo.10017043, 2023.
a
Heifetz, E., Bishop, C. H., Hoskins, B. J., and Methven, J.: The counter-propagating Rossby-wave perspective on baroclinic instability. I: Mathematical basis, Q. J. Roy. Meteorol. Soc., 130, 211–231, 2004.
a,
b,
c,
d,
e,
f,
g
Hersbach, H. and Coauthors: The ERA5 global reanalysis, Q. J. Roy. Meteorol. Soc., 146, 1999–2049, 2020.
a,
b
Hodges, K. I.: TRACK tracking and analysis system for weather, climate and ocean data, Gitlab [code],
https://gitlab.act.reading.ac.uk/track/track (last access: 13 October 2023), 2021. a
Hoskins, B. J.: The geostrophic momentum approximation and the semi-geostrophic equations, J. Atmos. Sci., 32, 233–242, 1975. a
Hoskins, B. J. and Draghici, I.: The forcing of ageostrophic motion according to the semi-geostrophic equations and in an isentropic coordinate model, J. Atmos. Sci., 34, 1859–1867, 1977. a
Hoskins, B. J., McIntyre, M. E., and Robertson, A. W.: On the use and significance of isentropic potential vorticity maps, Q. J. Roy. Meteorol. Soc., 111, 877–946, 1985.
a,
b
Huffman, G. J., Bolvin, D. T., Braithwaite, D., Hsu, K., Joyce, R., Kidd, C., Nelkin, E. J., Sorooshian, S., Tan, J., and Xie, P.: GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree
× 0.1 degree V07 (GPM_3IMERGHH), NASA [data set],
https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGHH_07/summary (last access: 12 October 2023), 2019.
a,
b
Isnoor, K. F. N., Firdianto, P. U., and Rejeki, H. A.: The activity of Borneo vortex as a trigger for extreme rain in West Borneo (case study: 24th–25th January 2017), Earth Environ. Sci., 303, 012061,
https://doi.org/10.1088/1755-1315/303/1/012061, 2019.
a
Johnson, R. H. and Houze, R. A.: Precipitating cloud systems of the Asian monsoon, in: Monsoon meteorology, edited by: Chang, C. P. and Krishnamurti, T. N., Oxford University Press, 298–353,
https://ci.nii.ac.jp/naid/10014597164/en/ (last access: 12 October 2023), 1987.
a,
b
Joos, H. and Wernli, H.: Influence of microphysical processes on the potential vorticity development in a warm conveyor belt: A case-study with the limited-area model COSMO, Q. J. Roy. Meteorol. Soc., 138, 407–418, 2012. a
Juneng, L. and Tangang, F. T.: Long-term trends of winter monsoon synoptic circulations over the maritime continent: 1962–2007, Atmos. Sci. Let., 11, 199–203, 2010.
a,
b
Juneng, L., Tangang, F. T., and Reason, C. J. C.: Numerical study of an extreme rainfall event during 9–11 December 2004 over the east coast of Peninsular Malaysia, Meteorol. Atmos. Phys., 98, 81–98, 2007.
a,
b,
c,
d,
e,
f
Koseki, S., Koh, T.-Y., and Teo, C.-K.: Borneo vortex and mesoscale convective rainfall, Atmos. Chem. Phys., 14, 4539–4562,
https://doi.org/10.5194/acp-14-4539-2014, 2014.
a,
b,
c,
d,
e,
f
Liang, J., Catto, J. L., Hawcroft, M. K., Hodges, K. I., Tan, M. L., and Haywood, J. M.: Climatology of Borneo vortices in the HadGEM3-GC3.1 general circulation model, J. Climate, 34, 3401–3419, 2021.
a,
b,
c,
d,
e,
f,
g,
h
Liang, J., Catto, J. L., Hawcroft, M. K., Tan, M. L., Hodges, K. I., and Haywood, J. M.: Borneo vortices in a warmer climate, Npj Clim. Atmos. Sci., 6, 1–8, 2023. a
Manganello, J. V. and Coauthors: Seasonal forecasts of tropical cyclone activity in a hig-atmospheric-resolution coupled prediction system, J. Climate, 29, 1179–1200, 2016. a
Martínez-Alvarado, O., Gray, S. L., and Methven, J.: Diabatic processes and the evolution of two contrasting summer extratropical cyclones, Mon. Weather Rev., 144, 3251–3276,
https://doi.org/10.1175/MWR-D-15-0395.1, 2016.
a
Met Office: Joint UK Land Environment Simulator (JULES),
https://jules.jchmr.org (last access: 12 October 2023), 2023. a
Moore, R. W. and Montgomery, M. T.: Reexamining the dynamics of short-scale, diabatic Rossby waves and their role in midlatitude moist cyclogenesis, J. Atmos. Sci., 61, 754–768, 2004.
a,
b
Nguyen, D.-Q., Renwick, J., and McGregor, J.: On the presence of tropical vortices over the Southeast Asian Sea-Maritime Continent region, J. Climate, 29, 4793–4800, 2016.
a,
b
Ooi, S. H., Samah, A. A., and Braesicke, P.: A case study of the Borneo vortex genesis and its interactions with the global circulation, J. Geophys. Res., 116, D21116,
https://doi.org/10.1029/2011JD015991, 2011.
a,
b,
c
Ooyama, K.: Numerical simulation of the life cycle of tropical cyclones, J. Atmos. Sci., 26, 3–40, 1969. a
Parker, D. J. and Thorpe, A. J.: Conditional convective heating in a baroclinic atmosphere: A model of convective frontogenesis, J. Atmos. Sci., 52, 1699–1711, 1995.
a,
b
Paulus, A. W. and Shanas, S. P.: Atmospheric study of the impact of cold surges and Borneo vortex over western Indonesia Maritime Continent area, J. Clim. Weather Forecast., 5, 189,
https://doi.org/10.4172/2332-2594.1000189, 2017.
a
Priestley, M. D. K., Ackerley, D., Catto, J. L., Hodges, K. I., McDonald, R. E., and Lee, R. W.: An overview of the extratropical storm tracks in CMIP6 historical simulations, J. Climate, 33, 6315–6343, 2020. a
Ramage, C. S.: Monsoon Meteorology, Tech. rep., Elsevier, ISBN 978-0-12-576650-0, 1971. a
Sanchez, C., Methven, J., Gray, S. L., and Cullen, M. J. P.: Linking rapid forecast error growth to diabatic processes, Q. J. Roy. Meteorol. Soc., 146, 3548–3569,
https://doi.org/10.1002/qj.3861, 2020.
a,
b,
c
Saragih, R. M. R., Fajarianti, R., and Winarso, P. A.: Atmospheric study of the impact of Borneo vortex and Madden-Julian oscillation over western Indonesian maritime area, J. Phys.: Conf. Ser., 997, 012004,
https://doi.org/10.1088/1742-6596/997/1/012004, 2018.
a
Stoelinga, M. T.: A potential vorticity-based study of the role of diabatic heating and friction in a numerically simulated baroclinic cyclone, Mon. Weather Rev., 124, 849–874, 1996. a
Tangang, F. T., Juneng, L., Salimun, E., Vinayachandran, P. N., Seng, Y.-K., Reason, C. J. C., Behera, S. K., and Yasunari, T.: On the roles of the northeast cold surge, the Borneo vortex, the Madden-Julian Oscillation, and the Indian Ocean Dipole during the extreme 2006/2007 flood in southern Peninsular Malaysia, Geophys. Res. Lett., 35, L14S07,
https://doi.org/10.1029/2008GL033429, 2008.
a
Trilaksono, N. J., Otsuka, S., and Yoden, S.: A time-lagged ensemble simulation on the modulation of precipitation over west Java in January–February 2007, Mon. Weather Rev., 140, 601–616, 2012.
a,
b,
c,
d
Walters, D., Boutle, I., Brooks, M., Melvin, T., Stratton, R., Vosper, S., Wells, H., Williams, K., Wood, N., Allen, T., Bushell, A., Copsey, D., Earnshaw, P., Edwards, J., Gross, M., Hardiman, S., Harris, C., Heming, J., Klingaman, N., Levine, R., Manners, J., Martin, G., Milton, S., Mittermaier, M., Morcrette, C., Riddick, T., Roberts, M., Sanchez, C., Selwood, P., Stirling, A., Smith, C., Suri, D., Tennant, W., Vidale, P. L., Wilkinson, J., Willett, M., Woolnough, S., and Xavier, P.: The Met Office Unified Model Global Atmosphere 6.0/6.1 and JULES Global Land 6.0/6.1 configurations, Geosci. Model Dev., 10, 1487–1520,
https://doi.org/10.5194/gmd-10-1487-2017, 2017.
a
Wangwongchai, A., Sixiong, Z., and Qingcun, Z.: A case study on a strong tropical disturbance and record heavy rainfall in Hat Yai, Thailand during the winter monsoon, Adv. Atmos. Sci., 22, 436–450, 2005. a
Wood, N., Staniforth, A., White, A., Allen, M. R., Diamantakis, M., Gross, M., Melvin, T., Smith, C., Vosper, S. B., Zerroukat, M., and Thuburn, J.: An inherently mass-conserving semi-implicit semi-Lagrangian discretization of the deep-atmosphere global non-hydrostatic equations, Q. J. Roy. Meteorol. Soc., 140, 1505–1520, 2014. a
Xavier, P., Lim, S. Y., Abdullah, M. F. A. B., Bala, M., Chenoli, S. N., Handayani, A. S., Marzin, C., Permana, D., Tangang, F. T., Williams, K., and Yik, D. J.: Seasonal dependence of cold surges and their interaction with the Madden-Julian oscillation over Southeast Asia, J. Climate, 33, 2467–2482, 2020. a
Yokoi, S. and Matsumoto, J.: Collaborative effects of cold surge and tropical depression-type disturbance on heavy rainfall in central Vietnam, Mon. Weather Rev., 136, 3275–3287, 2008.
a,
b
