Assessment of changes in climate extremes in Vietnam at the beginning of the 21st century

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  • Authors:  E. V. Vyshkvarkova1, N. P. Lineva1, R. V. Gorbunov1, A. N. Kuznetsov2, S. P. Kuznetsova2, Nguyen D. H.2
  • Affiliations:
    1. A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russian Federation
    2. Joint Russian-Vietnamese Tropical Research and Technology Center, Hanoi, Vietnam
  • Issue: Vol. 10 No. 4 (2025)
  • Section: Structure, functioning and dynamics of ecosystems
  • Pages: 74–87
  • Keywords: climate change, Vietnam, temperature indices, extreme precipitation, trends, warming, climate indices, monsoon
  • DOI: 10.21072/eco.2025.10.4.07
  • UDC: 551.583(1-925.8)
  • Published: 2025-12-22
  • Views: 0 Downloads: 0
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Vyshkvarkova E. V., Lineva N. P., Gorbunov R. V., Kuznetsov A. N., Kuznetsova S. P., Nguyen D. H. Assessment of changes in climate extremes in Vietnam at the beginning of the 21st century. Biodiversity and Sustainable Development, 2025, vol. 10, no. 4, pp. 74-87. https://doi.org/10.21072/eco.2025.10.4.07

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Abstract

The article presents a comprehensive analysis of the spatiotemporal variability of temperature and precipitation in Vietnam for the period 1991–2024 using a number of climate indices. It was found that average annual temperatures demonstrate a statistically significant increase with a maximum warming intensity of up to 0.6 °C/10 years in the central regions. An increase in minimum temperatures (up to 0.4 °C/10 years) and a significant increase in the number of tropical nights (TR index) were detected, especially in mountainous areas (up to +30 days/10 years). The absolute annual maximum index (TXx) shows a sharp increase (up to +1.5 °C/10 years) in the central and northern regions. The greatest increase in the number of hot days (SU35, Tmax > 35 °C) was detected in the northern and central parts of Vietnam (up to +25 days/10 years). Precipitation analysis revealed positive and statistically significant trends in annual precipitation totals, particularly on the windward slopes of the Truong Son Range (up to 70 mm/year). An increase in the number of days with heavy (R10 mm) and very heavy (R20 mm) precipitation was observed, as well as an increase in the precipitation intensity index (SDII) in the central part of the country, indicating an intensification of extreme rainfall events. The results indicate a significant transformation of Vietnam’s climate, characterized by an intensification of the hydrological cycle and warming, creating new risks associated with heat stress and extreme precipitation. 

Keywords: climate change, Vietnam, temperature indices, extreme precipitation, trends, warming, climate indices, monsoon

Authors

E. V. Vyshkvarkova

PhD, senior researcher

A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russian Federation
N. P. Lineva

junior researcher

A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russian Federation
R. V. Gorbunov

D. Sc., director

A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russian Federation
A. N. Kuznetsov

D. Sc.

Joint Russian-Vietnamese Tropical Research and Technology Center, Hanoi, Vietnam
S. P. Kuznetsova

senior engineer

Joint Russian-Vietnamese Tropical Research and Technology Center, Hanoi, Vietnam
Nguyen D. H.

PhD, professor

Joint Russian-Vietnamese Tropical Research and Technology Center, Hanoi, Vietnam

References

Bui L. K., Awange J., Vu D. T. Precipitation and soil moisture spatio-temporal variability and extremes over Vietnam (1981–2019): understanding their links to rice yield // Sensors. – 2022. – Vol. 22. – Art. 1906. – https://doi.org/10.3390/s22051906

Tran T., Nguyen V. T., Huynh T. L. H., Mai V. K., Nguyen X. H., Doan H. P. Climate change and sea level rise scenarios for Viet Nam. Summary for policymakers. – HÀ NỘI : Ministry of Natural Resources & Environment, 2016. – 39 p.

Climate reanalysis // Copernicus : Climate Change Service / Europ. Commis. – URL: https://climate.copernicus.eu/climate-reanalysis (accessed: 20.08.2025).

Dao L. T. A., Huy P., Pham T. T. T., Dinh T. N. Global climate risks and agricultural firm performance in Vietnam // Agribusiness. – 2025. – Art. 70007. – https://doi.org/10.1002/agr.70007. – Publ. date: 02.07.2025.

Dippner J. W., Nguyen K. V., Hein H., Ohde T., Loick N. Monsoon-induced upwelling off the Vietnamese coast // Ocean Dynamics. – 2007. – Vol. 57, iss. 1. – P. 46–62. – https://doi.org/10.1007/s10236-006-0091-0

Do Q. V., Do H. X., Do N. C., Ngo A. L. Changes in precipitation extremes across Vietnam and its relationships with teleconnection patterns of the northern hemisphere // Water. – 2020. – Vol. 12. – Art. 1646. – https://doi.org/10.3390/w12061646

Espagne E. (Ed.), Ngo-Duc T., Nguyen M.-H., Pannier E., Woillez M.-N., Drogoul A., Linh H. T. P. Climate Change in Viet Nam. Impacts and Adaptation. A COP26 assessment report of the GEMMES Viet Nam project. – Paris : Agence française de développement (AFD), 2021. – 612 p.

Funk C., Peterson P., Landsfeld M., Pedreros D., Verdin J., Shukla S., Husak G., Rowland J., Harrison L., Hoell A., Michaelsen J. The climate hazards infrared precipitation with stations – a new environmental record for monitoring extremes // Scientific Data. – 2015. – Vol. 2. – Art. 150066. – https://doi.org/10.1038/sdata.2015.66

Ha D. H., Duc P. N., Luong T. H., Duc T. T., Ngoc T. T., Minh T. N., Minh T. N. Application of artificial intelligence to forecast drought index for the Mekong Delta // Applied Science. – 2024. – Vol. 14. – Art. 6763. – https://doi.org/10.3390/app14156763

Hallegatte S., Green C., Nicholls R. J., Corfee-Morlot J. Future flood losses in major coastal cities // Nature Climate Change. – 2013. – Vol. 3. – P. 802–806. – https://doi.org/10.1038/nclimate1979

Hersbach H., Bell B., Berrisford P. [et al.] The ERA5 global reanalysis // Qarterly Journal of the Royal Meteorological Society. – 2020. – Vol. 146, iss. 730. – P. 1999–2049. – https://doi.org/10.1002/qj.3803

Ho T. M. H., Phan V. T., Le N. Q., Nguyen Q. T. Extreme climatic events over Vietnam from observational data and RegCM3 projections // Climate Research. – 2011. – Vol. 49. – P. 87–100. – https://doi.org/10.3354/cr01021

Huong H. T. L., Pathirana A. Urbanization and climate change impacts on future urban flooding in Can Tho city, Vietnam // Hydrology and Earth System Sciences. – 2013. – Vol. 17, iss. 1. – P. 379–394. – https://doi.org/10.5194/hess-17-379-2013

IPCC, 2021 : Climate Change 2021 : The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change / ed. by Masson-Delmotte V. [et al.]. – Cambridge, UK [et al.] : Cambridge Univ. Press, 2021. – 2391 p. – https://doi.org/10.1017/9781009157896

Khiem V. M., Redmond G., McSweeney C., Thuc T. Evaluation of dynamically downscaled ensemble climate simulations for Vietnam // International Journal of Climatology. – 2014. – Vol. 34, iss. 7. – P. 2450–2463. – https://doi.org/10.1002/joc.3851

Le B. T. Vietnam, the Country and its Geographical Regions. – Hanoi : Thế Giới, 1997. – 620 p.

Tung L. T., Bentzen J., Mai Tram N. H., Thang P. N., Hoang D. V. Climate change and rice production: Empirical evidence from Vietnam // Studies in Agricultural Economics. – 2025. – Vol. 127, iss. 1. – P. 67–79. – https://doi.org/10.7896/j.2977

Le M. H., Kim H., Moon H., Zhang R., Lakshmi V., Nguyen L. B. Assessment of drought conditions over Vietnam using standardized precipitation evapotranspiration index, MERRA-2 re-analysis, and dynamic land cover // Journal of Hydrology: Regional Studies. – 2020. – Vol. 32. – Art. 100767. – https://doi.org/10.1016/j.ejrh.2020.100767

Tran N. Q. L., Le H. T. C. H., Pham C. T. [et al.] Climate change and human health in Vietnam: a systematic review and additional analyses on current impacts, future risk, and adaptation // The Lancet Regional Health – Western Pacific. – 2023. – Vol. 40. – Art. 100943. – https://doi.org/10.1016/j.lanwpc.2023.100943

Mahlstein I., Knutti R., Solomon S., Portmann R. W. Early onset of significant local warming in low latitude countries // Environmental Research Letters. – 2011. – Vol. 6, no 3. – Art. 034009. – https://doi.org/10.1088/1748-9326/6/3/034009

MONRE. Climate Change, Sea Level Rise Scenarios for Viet Nam / Ministry of Natural Resources and Environment, Vietnam Natural Resources. – Hanoi : Environment and Mapping Publ. House, 2021. – 144 p.

Nguyen D.-Q., Renwick J., McGregor J. Variations of surface temperature and rainfall in Vietnam from 1971 to 2010 // International Journal of Climatology. – 2014. – Vol. 34, iss. 1. – P. 249–264. – https://doi.org/10.1002/joc.3684

Nguyen D. N., Nguyen T. H. Climate and Climate Resources in Vietnam. – Hanoi : Agr. Publ. House, 2004. – 296 p. (in Vietnamese).

Nguyen T. D. Geography of Vietnam: Natural, Human, Economic. – 2nd ed. – Hanoi : Thế Giới Publ., 1995. – 191 p.

Nguyen V. T., Mai V. K., Vu V. T., Nguyen D. M., Nguyen N. B. P., Le D. D., Truong M. H., Luu N. L. Changes in climate extremes in Vietnam // Vietnam Journal of Science, Technology and Engineering. – 2017. – Vol. 59, nr 1. – P. 79–87. – https://doi.org/10.31276/vjste.59(1).79

Peterson T. C., Folland C., Gruza G., Hogg W., Mokssit A., Plummer N. Report on the activities of the working group on climate change detection and related rapporteurs 1998–2001. – Southampton, UK : Intern. CLIVAR Project Office, 2001. – 144 p. – (ICPO Publication Series ; nr 48).

Post E., Alley R. B., Christensen T. R., Macias-Fauria M., Forbes B. C., Gooseff M. N., Iler A., Kerby J. T., Laidre K. L., Mann M. E., Olofsson J., Stroeve J. C., Ulmer F., Virginia R. A., Wang M. The polar regions in a 2 ºC warmer world // Science Advances. – 2019. – Vol. 5, iss. 12. – Art. eaaw9883. – https://doi.org/10.1126/sciadv.aaw9883

Phan V.-T., Ngo-Duc T., Ho T.-M.-H. Seasonal and interannual variations of surface climate elements over Vietnam // Climate Research. – 2009. – Vol. 40, iss. 1. – P. 49–60. – https://doi.org/10.3354/cr00824

Quan T. A., Thanh N. D., Espagne E., Long T. T. A high-resolution projected climate dataset for Vietnam: Construction and preliminary application in assessing future change // Journal of Water and Climate Change. – 2022. – Vol. 13, iss. 9. – P. 3379–3399. –https://doi.org/10.2166/wcc.2022.144

Sterling E. J., Hurley M. M., Le D. M. Vietnam: A Natural History. – New Haven (USA) [et al.] : Yale Univ. Press, 2006. – 423 p.

Sun Q., Song W., Han Z., Song W., Wang Z. Assessment of flood disaster risk in the Lancang–Mekong Region // Water. – 2024. – Vol. 16. – Art. 3112. – https://doi.org/10.3390/w16213112

Tran T. N. D., Le M.-H., Zhang R., Nguyen B. Q., Bolten J. D., Lakshmi V. Robustness of gridded precipitation products for Vietnam basins using the comprehensive assessment framework of rainfall // Atmospheric Research. – 2023. – Vol. 293. – Art. 106923. – https://doi.org/10.1016/j.atmosres.2023.106923

Tran T. C., Tang Q., Zhao G., Wright N. Projected changes in average and extreme precipitation under global warming in Vietnam // Natural Hazards. – 2025. – Vol. 121. – P. 15135–15161. – https://doi.org/10.1007/s11069-025-07386-x

Trinh T. A. The impact of climate change on agriculture: Findings from households in Vietnam // Environmental and Resource Economics. – 2018. – Vol. 71, iss. 4. – P. 897–921. – https://doi.org/10.1007/s10640-017-0189-5

Vu D. T., Yamada T., Ishidaira H. Assessing the impact of sea level rise due to climate change on seawater intrusion in Mekong Delta, Vietnam // Water Science and Technology. – 2018. – Vol. 77, iss. 6. – P. 1632–1639. – https://doi.org/10.2166/wst.2018.038

Vu T. M., Mishra A. K. Spatial and temporal variability of standardized precipitation index over Indochina Peninsula // Cuadernos de Investigación Geográfica. – 2016. – Vol. 42, no 1. – P. 221–232. – https://doi.org/10.18172/cig.2928

Wassmann R., Hien N. X., Hoanh C. T., Tuong T. P. Sea level rise affecting the Vietnamese Mekong Delta: water elevation in the flood season and implications for rice production // Climatic Change. – 2004. – Vol. 66, iss. 1/2. – P. 89–107. – https://doi.org/10.1023/B:CLIM.0000043144.6 9736.b7

Zhang X., Alexander L., Hegerl G. C., Jones P., Klein T. A., Peterson T. C., Trewin B., Zwiers F. W. Indices for monitoring changes in extremes based on daily temperature and precipitation data // Wiley Interdisciplinary Reviews: Climate Change. – 2011. – Vol. 2, iss. 6. – P. 851–870. – https://doi.org/10.1002/wcc.147

Funding

Работа выполнена в рамках темы «Изучение особенностей функционирования и динамики ландшафтов Центрального и Южного Вьетнама в условиях антропогенной нагрузки и изменения климата для создания научных основ их рационального использования» Совместного Российско-Вьетнамского Тропического научно-исследовательского и технологического центра и государственного задания ФИЦ ИнБЮМ «Изучение особенностей функционирования и динамики субтропических и тропических прибрежных экосистем в условиях изменения климата и антропогенной нагрузки с использованием методов дистанционных исследований, технологий облачной обработки информации и машинного обучения для создания научных основ их рационального использования», регистрационный номер: 124030100030-0.

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