Abstract
The tropopause serves a critical role in shaping global and regional weather and climate dynamics. Changes in tropopause characteristics can significantly impact other atmospheric components, thereby influencing Earth’s climate systems. In the long run, variations in tropopause features can lead to shifts in the thermal, dynamic, and chemical properties of the tropospheric layer. This study aims to investigate the descriptive attributes of tropopause pressure levels (TPLs) during different months, as well as the temporal and spatial trends in TPL across the Northern Hemisphere spanning from 1979 to 2022. Utilizing ERA5 temperature data for the 700 to 50 hPa range, the tropopause was identified using the lapse rate of tropopause (LRT), and its changes were analyzed employing the linear regression model with the least squares error approach. The results indicated that the spatial pattern of TPLs changed across various latitudes varies seasonally. Generally, the changes in TPLs did not exhibit a linear relationship with latitude, and in most observed months, the highest and lowest TPLs did not correspond to the lowest and highest latitudes, respectively. Examination of the trend in TPLs revealed that in numerous significant areas across different seasons, the trends were statistically insignificant. Where significant, the trends predominantly indicated negative changes (decreases), suggesting a reduction in pressure and potentially an increase in tropopause altitude in these regions, possibly reflecting the influence of global warming.
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Data Availability
In this study, the reanalysis data from the ECMWF (ERA5) database was utilized. The data can be accessed at the following address: https://doi.org/https://doi.org/10.24381/cds.6860a573.
Code Availability
MATLAB code used in this study for analyzing the data and preparing the required maps of the study area. The code is written according to the method is described in details under the heading of "2.3 Methods" section.
References
Asakereh, H., Darand, M., & zandkarimi, S,. (2020a). Descriptive characteristics of tropopause on the atmosphere of Iran in transitional seasons. Physical Geography Research Quarterly, 52, 333–350. https://doi.org/10.22059/jphgr.2020.285740.1007423
Asakereh, H., Masoodian, S., Darand, M., & Zandkarimi, S. (2020b). Analysis of the long - term trend of the tropopause pressure levels over the atmosphere of Iran in the warm and the cold seasons. Water and Soil, 34, 1189–1202. https://doi.org/10.22067/jsw.v34i5.86196
Asakereh, H., Darand, M., & Zandkarimi, S. (2022a). Analysis of the trend of long-term changes in the tropopause height on the Iranian atmosphere in the transition seasons. Journal of Natural Environmental Hazards, 11, 1–18. https://doi.org/10.22111/jneh.2021.36174.1715
Asakereh, H., Darand, M., & Zandkarimi, S. (2022b). Investigating the relationship between change of tropopause pressure’s level (TPL) and cyclones associated with widespread precipitation (WP) in Iran. Journal of the Earth and Space Physics, 48, 75–92. https://doi.org/10.22059/jesphys.2021.319692.1007300
Asakereh, H., Darand, M., Masoodian, S. A., & Zandkarimi, S. (2022c). Descriptive characteristics of the tropopause on Iran’s atmosphere in summer and winter seasons. Scientific- Research Quarterly of Geographical Data (SEPEHR), 30(120), 187–200. https://doi.org/10.22131/sepehr.2022.251062
Beekmann, M., Ancellet, G., Blonsky, S., De Muer, D., Ebel, A., Elbern, H., Hendricks, J., Kowol, J., Mancier, C., Sladkovic, R., & Smit, H. G. (1997). Regional and global tropopause fold occurrence and related ozone flux across the tropopause. Journal of Atmospheric Chemistry, 28, 29–44. https://doi.org/10.1023/A:1005897314623
Birner, T. (2010). Residual circulation and tropopause structure. Journal of the Atmospheric Sciences, 67, 2582–2600. https://doi.org/10.1175/2010JAS3287.1
Bleck, R., & Mattocks, C. (1984). A preliminary analysis of the role of potential vorticity in Alpine lee cyclogenesis. Beiträge Zur Physik Der Atmosphäre, 57, 357–368.
Boyle, J. S., & Bosart, L. F. (1983). A cyclone/anticyclone couplet over North America: an example of anticyclone evolution. Monthly Weather Review, 111, 1025–1045. https://doi.org/10.1175/1520-0493(1983)111%3c1025:ACCONA%3e2.0.CO;2
Brewer, A. W. (1949). Evidence for a world circulation provided by the measurements of helium and water vapour distribution in the stratosphere. Quarterly Journal of the Royal Meteorological Society, 75, 351–363. https://doi.org/10.1002/qj.49707532603
Butchart, N., Scaife, A. A., Bourqui, M., De Grandpré, J., Hare, S. H., Kettleborough, J., Langematz, U., Manzini, E., Sassi, F., Shibata, K., & Shindell, D. (2006). Simulations of anthropogenic change in the strength of the Brewer-Dobson circulation. Climate Dynamics, 27, 727–741. https://doi.org/10.1007/s00382-006-0162-4
Corti, T., Luo, B. P., De Reus, M., Brunner, D., Cairo, F., Mahoney, M. J., Martucci, G., Matthey, R., Mitev, V., Dos Santos, F. H., & Schiller, C. (2008). Unprecedented evidence for deep convection hydrating the tropical stratosphere. Geophysical Research Letters. https://doi.org/10.1029/2008GL033641
Dameris, M. (2003). Tropopause, encyclopedia of atmospheric sciences. In: R.N. Gerald (Eds.), John Pyle and Fuqing Zhang. USA: Pennsylvania State University, University Park, PA.
Emanuel, K., Solomon, S., Folini, D., Davis, S., & Cagnazzo, C. (2013). Influence of tropical tropopause layer cooling on Atlantic hurricane activity. Journal of Climate, 26, 2288–2301. https://doi.org/10.1175/JCLI-D-12-00242.1
Fueglistaler, S., Dessler, A. E., Dunkerton, T. J., Folkins, I., Fu, Q., & Mote, P. W. (2009). Tropical tropopause layer. Reviews of Geophysics. https://doi.org/10.1029/2008RG000267
Gettelman, A. (2002). A climatology of the tropical tropopause layer. Journal of the Meteorological Society of Japan Ser II, 80, 911–924. https://doi.org/10.2151/jmsj.80.911
Gettelman, A., Hoor, P., Pan, L. L., Randel, W., Hegglin, M. I., & Birner, T. (2011). The extratropical upper troposphere and lower stratosphere. Reviews of Geophysics. https://doi.org/10.1029/2011RG000355
Gillett, N. P., Graf, H. F., & Osborn, T. J. (2003). Climate change and the North Atlantic oscillation. Geophysical Monograph-American Geophysical Union, 134, 193–210. https://doi.org/10.1029/134GM09
Graves, M. E. (1951). The relation between the tropopause and convective activity in the subtropics (Puerto Rico). Bulletin of the American Meteorological Society, 32, 54–60. https://doi.org/10.1175/1520-0477-32.2.54
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz-Sabater, J., Nicolas, J., Peubey, C., Radu, R., Schepers, D., & Simmons, A. (2020). The ERA5 global reanalysis. Quarterly Journal of the Royal Meteorological Society, 146, 1999–2049. https://doi.org/10.1002/qj.3803
Highwood, E. J., & Hoskins, B. J. (1998). The tropical tropopause. Quarterly Journal of the Royal Meteorological Society, 124, 1579–1604. https://doi.org/10.1002/qj.49712454911
Highwood, E. J., Hoskins, B. J., & Berrisford, P. (2000). Properties of the Arctic tropopause. Quarterly Journal of the Royal Meteorological Society, 126, 1515–1532. https://doi.org/10.1002/qj.49712656515
Hirschberg, P. A., & Fritsch, J. M. (1991). Tropopause undulations and the development of extratropical cyclones. Part I. Overview and observations from a cyclone event. Monthly Weather Review, 119(2), 496–517. https://doi.org/10.1175/1520-0493(1991)119%3c0496:TUATDO%3e2.0.CO;2
Hoffmann, L., & Spang, R. (2022). An assessment of tropopause characteristics of the ERA5 and ERA-Interim meteorological reanalyses. Atmospheric Chemistry and Physics, 22, 4019–4046. https://doi.org/10.5194/acp-22-4019-2022
Hoinka, K. P. (1998). Statistics of the global tropopause pressure. Monthly Weather Review, 126, 3303–3325. https://doi.org/10.1175/1520-0493(1998)126%3c3303:SOTGTP%3e2.0.CO;2
Hoinka, K. P. (1999). Temperature, humidity, and wind at the global tropopause. Monthly Weather Review, 10, 2248–2265. https://doi.org/10.1175/1520-0493(1999)127%3c2248:THAWAT%3e2.0.CO;2
Holton, J. R., Haynes, P. H., McIntyre, M. E., Douglass, A. R., Rood, R. B., & Pfister, L. (1995). Stratosphere-troposphere exchange. Reviews of Geophysics, 33, 403–439. https://doi.org/10.1029/95RG02097
Homeyer, C. R., Pan, L. L., Dorsi, S. W., Avallone, L. M., Weinheimer, A. J., O’Brien, A. S., DiGangi, J. P., Zondlo, M. A., Ryerson, T. B., Diskin, G. S., & Campos, T. L. (2014). Convective transport of water vapor into the lower stratosphere observed during double-tropopause events. Journal of Geophysical Research: Atmospheres, 119, 10–941. https://doi.org/10.1002/2014JD021485
Hurrell, J. W., & Deser, C. (2010). North Atlantic climate variability: the role of the North Atlantic Oscillation. Journal of Marine Systems, 79, 231–244. https://doi.org/10.1016/j.jmarsys.2009.11.002
Iles, C., & Hegerl, G. (2017). Role of the North Atlantic Oscillation in decadal temperature trends. Environmental Research Letters, 12, 114010. https://doi.org/10.1088/1748-9326/aa9152
Kaluza, T., Kunkel, D., & Hoor, P. (2021). On the occurrence of strong vertical wind shear in the tropopause region: a 10-year ERA5 northern hemispheric study. Weather and Climate Dynamics, 2, 631–651. https://doi.org/10.5194/wcd-2-631-2021
Kaluza, T., Kunkel, D., & Hoor, P. (2022). Analysis of turbulence reports and ERA5 turbulence diagnostics in a tropopause-based vertical framework. Geophysical Research Letters, 49, 100036. https://doi.org/10.1029/2022GL100036
Kim, J., & Son, S. W. (2012). Tropical cold-point tropopause: Climatology, seasonal cycle, and intraseasonal variability derived from COSMIC GPS radio occultation measurements. Journal of Climate, 25, 5343–5360. https://doi.org/10.1175/JCLI-D-11-00554.1
Klemp, J. B., & Lilly, D. R. (1975). The dynamics of wave-induced downslope winds. Journal of Atmospheric Sciences, 32, 320–339. https://doi.org/10.1175/1520-0469(1975)032%3c0320:TDOWID%3e2.0.CO;2
Mohanakumar, K. (2008). Stratosphere troposphere interactions: an introduction. Berlin: Springer.
Moradi, M. (2022). The effect of sudden stratospheric warming on the height and temperature variations of thermal tropopause in northern hemisphere (1979–2020). Journal of the Earth and Space Physics, 48, 731–748. https://doi.org/10.22059/jesphys.2022.335654.1007392
Moradi, M. (2023). A statistical investigation of the tropical cold point tropopause temperature in Tehran and Shiraz in January and July (2000–2022). Journal of the Earth and Space Physics. https://doi.org/10.22059/jesphys.2023.362735.1007544
Mote, P. W., Rosenlof, K. H., McIntyre, M. E., Carr, E. S., Gille, J. C., Holton, J. R., Kinnersley, J. S., Pumphrey, H. C., Russell, J. M., III., & Waters, J. W. (1996). An atmospheric tape recorder: The imprint of tropical tropopause temperatures on stratospheric water vapor. Journal of Geophysical Research: Atmospheres, 101, 3989–4006. https://doi.org/10.1029/95JD03422
Newton, C. W., & Holopainen, E. O. (Eds.). (1990). Extratropical Cyclones: The Erik Palmen Memorial Volume. Boston: American Meteorological Society.
Oberländer-Hayn, S., Gerber, E. P., Abalichin, J., Akiyoshi, H., Kerschbaumer, A., Kubin, A., Kunze, M., Langematz, U., Meul, S., Michou, M., & Morgenstern, O. (2016). Is the Brewer-Dobson circulation increasing or moving upward? Geophysical Research Letters, 43, 1772–1779. https://doi.org/10.1002/2015GL067545
Pan, L. L., Randel, W. J., Gary, B. L., Mahoney, M. J., & Hintsa, E. J. (2004). Definitions and sharpness of the extratropical tropopause: A trace gas perspective. Journal of Geophysical Research Atmospheres. https://doi.org/10.1029/2004JD004982
Randel, W. J., & Jensen, E. J. (2013). Physical processes in the tropical tropopause layer and their roles in a changing climate. Nature Geoscience, 6, 169–176. https://doi.org/10.1038/ngeo1733
Randel, W. J., Wu, F., Oltmans, S. J., Rosenlof, K., & Nedoluha, G. E. (2004). Interannual changes of stratospheric water vapor and correlations with tropical tropopause temperatures. Journal of the Atmospheric Sciences, 61, 2133–2148. https://doi.org/10.1175/1520-0469(2004)061%3c2133:ICOSWV%3e2.0.CO;2
Randel, W. J., Wu, F., Vömel, H., Nedoluha, G. E., & Forster, P. (2006). Decreases in stratospheric water vapor after 2001: Links to changes in the tropical tropopause and the Brewer-Dobson circulation. Journal of Geophysical Research: Atmospheres, 27, 111. https://doi.org/10.1029/2005JD006744
RavindraBabu, S., Venkat Ratnam, M., Basha, G., & Krishnamurthy, B. V. (2019). Indian summer monsoon onset signatures on the tropical tropopause layer. Atmospheric Science Letters, 20, 884. https://doi.org/10.1002/asl.884
Reichler, T., Dameris, M., & Sausen, R. (2003). Determining the tropopause height from gridded data. Geophysical Research Letters. https://doi.org/10.1029/2003GL018240
Reid, G. C., & Gage, K. S. (1996). The tropical tropopause over the western Pacific: Wave driving, convection, and the annual cycle. Journal of Geophysical Research: Atmospheres, 101, 21233–21241. https://doi.org/10.1029/96JD01622
Rimbu, N., Stefan, S., Busuioc, A., & Georgescu, F. (2016). Links between blocking circulation and precipitation extremes over Romania in summer. International Journal of Climatology, 36, 369–376. https://doi.org/10.1002/joc.4353
Santer, B. D., Sausen, R., Wigley, T. M., Boyle, J. S., AchutaRao, K., Doutriaux, C., Hansen, J. E., Meehl, G. A., Roeckner, E., Ruedy, R., & Schmidt, G. (2003). Behavior of tropopause height and atmospheric temperature in models, reanalyses, and observations: Decadal changes. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/2002JD002258
Sausen, R., & Santer, B. D. (2003). Use of changes in tropopause height to detect human influences on climate. Meteorologische Zeitschrift (berlin), 12, 131–136. https://doi.org/10.1127/0941-2948/2003/0012-0131
Schmidt, T., Heise, S., Wickert, J., Beyerle, G., & Reigber, C. (2005). GPS radio occultation with CHAMP and SAC-C: Global monitoring of thermal tropopause parameters. Atmospheric Chemistry and Physics, 15, 1473–1488. https://doi.org/10.5194/acp-5-1473-2005
Schubert, W., Ciesielski, P., Stevens, D., & Kuo, H. C. (1991). Potential vorticity modeling of the ITCZ and the Hadley circulation. Journal of the Atmospheric Sciences, 48, 1493–1509. https://doi.org/10.1175/1520-0469(1991)048%3c1493:PVMOTI%3e2.0.CO;2
Seidel, D. J., Ross, R. J., Angell, J. K., & Reid, G. C. (2001). Climatological characteristics of the tropical tropopause as revealed by radiosondes. Journal of Geophysical Research: Atmospheres, 106, 7857–7878. https://doi.org/10.1029/2000JD900837
Shapiro, M. A. (1980). Turbulent mixing within tropopause folds as a mechanism for the exchange of chemical constituents between the stratosphere and troposphere. Journal of Atmospheric Sciences, 37, 994–1004. https://doi.org/10.1175/1520-0469(1980)037%3c0994:TMWTFA%3e2.0.CO;2
Shea, D. J. (1996). An Introduction to Atmospheric and Oceanographic Datasets. BOULDER, COLORADO: NCAR publication, Climate and Global Dynamics Division.
Shepherd, T. G. (2002). Issues in stratosphere-troposphere coupling. Journal of the Meteorological Society of Japan, 80, 769–792. https://doi.org/10.2151/jmsj.80.769
Siler, N., & Durran, D. (2015). Assessing the impact of the tropopause on mountain waves and orographic precipitation using linear theory and numerical simulations. Journal of the Atmospheric Sciences, 72, 803–820. https://doi.org/10.1175/JAS-D-14-0200.1
Škerlak, B., Sprenger, M., & Wernli, H. (2014). A global climatology of stratosphere–troposphere exchange using the ERA-Interim data set from 1979 to 2011. Atmospheric Chemistry and Physics, 27, 913–937. https://doi.org/10.5194/acp-14-913-2014
Staley, D. (1960). Evaluation of potential-vorticity changes near the tropopause and related vertical motions, vertical advection of vorticity, and transfer of radioactive debris from stratosphere to troposphere. J. Meteor, 17, 591–620. https://doi.org/10.1175/1520-0469(1960)017%3c0591:EOPVCN%3e2.0.CO;2
Steinbrecht, W., Claude, H., Köhler, U., & Hoinka, K. P. (1998). Correlations between tropopause height and total ozone: Implications for long-term changes. Journal of Geophysical Research: Atmospheres, 103, 19183–19192. https://doi.org/10.1029/98JD01929
Sun, N., Zhong, L., Zhao, C., Ma, M., & Fu, Y. (2022). Temperature, water vapor and tropopause characteristics over the Tibetan Plateau in summer based on the COSMIC, ERA-5 and IGRA datasets. Atmospheric Research, 266, 105955. https://doi.org/10.1016/j.atmosres.2021.105955
Tang, Q., & Prather, M. J. (2010). Correlating tropospheric column ozone with tropopause folds: The Aura-OMI satellite data. Atmospheric Chemistry and Physics, 10, 9681–9688. https://doi.org/10.5194/acp-10-9681-2010
Tegtmeier, S., Anstey, J., Davis, S., Dragani, R., Harada, Y., Ivanciu, I., Pilch Kedzierski, R., Krüger, K., Legras, B., Long, C., & Wang, J. S. (2020). Temperature and tropopause characteristics from reanalyses data in the tropical tropopause layer. Atmospheric Chemistry and Physics, 20, 753–770. https://doi.org/10.5194/acp-20-753-2020
Tsanis, I., & Tapoglou, E. (2019). Winter North Atlantic oscillation impact on European precipitation and drought under climate change. Theoretical and Applied Climatology, 135, 323–330. https://doi.org/10.1007/s00704-018-2379-7
Varotsos, C., Cartalis, C., Vlamakis, A., Tzanis, C., & Keramitsoglou, I. (2004). The long-term coupling between column ozone and tropopause properties. Journal of Climate, 17, 3843–3854. https://doi.org/10.1175/1520-0442(2004)017%3c3843:TLCBCO%3e2.0.CO;2
Wang, S., Camargo, S. J., Sobel, A. H., & Polvani, L. M. (2014). Impact of the tropopause temperature on the intensity of tropical cyclones: An idealized study using a mesoscale model. Journal of the Atmospheric Sciences, 71, 4333–4348. https://doi.org/10.1175/JAS-D-14-0029.1
Wilcox, L. J., Hoskins, B. J., & Shine, K. P. (2012). A global blended tropopause based on ERA data. Part I: climatology. Quarterly Journal of the Royal Meteorological Society, 138, 561–575. https://doi.org/10.1002/qj.951
Meteorology, W. M. (1957). A three-dimensional science: Second session of the Commission for Aerology. WMO Bull, 4, 134–138.
Wong, S., & Wang, W. C. (2003). Tropical–extratropical connection in interannual variation of the tropopause: Comparison between NCEP/NCAR reanalysis and an atmospheric general circulation model simulation. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/2001JD002016
Xian, T., & Homeyer, C. R. (2019). Global tropopause altitudes in radiosondes and reanalyses. Atmospheric Chemistry and Physics, 19, 5661–5678. https://doi.org/10.5194/acp-19-5661-2019
Xie, F., Li, J., Tian, W., Feng, J., & Huo, Y. (2012). Signals of El Niño Modoki in the tropical tropopause layer and stratosphere. Atmospheric Chemistry and Physics, 12, 5259–5273. https://doi.org/10.5194/acp-12-5259-2012
Zduniak, P., & Antczak, M. (2003). Repeatability and within-clutch variation in egg dimensions in a Hooded Crow Corvus corone cornix population. Biological Letters, 40, 37–42.
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Hossein Asakereh and Soma Zandkarimi performed the study conception, design, and data analysis (including software programing and maps generation). The first draft (in Persian) of the manuscript was written by Soma Zandkarimi and revised by Hossein Asakereh. The final versions of the manuscript (in English) was written by Hossein Asakereh.
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Asakereh, H., Zandkarimi, S. Temporal and Spatial Variations in Tropopause Pressure Levels (TPLs) Across the Northern Hemisphere. Pure Appl. Geophys. 181, 1617–1632 (2024). https://doi.org/10.1007/s00024-024-03484-2
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DOI: https://doi.org/10.1007/s00024-024-03484-2