Skip to: [courses] [S-RIP] [publications] [datasets] [lectures and presentations] [code]

Courses

Atmosphere–Ocean Interactions (海气相互作用)
[syllabus] [lectures and notes]

A short course in Python (part of Atmosphere–Ocean Interactions)
[materials and exercises]

Climate Dynamics Seminar (气候动力学研讨)
[syllabus] [notes on selected posts]

SPARC Reanalysis Intercomparison Project

Website: SPARC Reanalysis Intercomparison Project

Chapter 2: Description of the Reanalysis Systems (pdf)
Updated 16 November 2019; previous versions available from:
   • September 2019
   • May 2019
Authors: Wright, J. S., M. Fujiwara, C. Long, J. Anstey, S. Chabrillat, G. P. Compo, R. Dragani, W. Ebisuzaki, Y. Harada, C. Kobayashi, W. McCarty, A. Molod, K. Onogi, S. Pawson, A. Simmons, D. G. H. Tan, S. Tegtmeier, K. Wargan, J. S. Whitaker and C.-Z. Zou
Note: This is an extended electronic-only version of the chapter prepared for the S-RIP Final Report. It is open for public comment and review while the report is completed and submitted for final peer review.

Publications

Accepted / in press / discussion

Fujiwara, M., P. Martineau and J. S. Wright (2019): Surface temperature response to the major volcanic eruptions in multiple reanalysis data sets, Atmos. Chem. Phys. Disc., doi:10.5194/acp-2019-384.

Liang, J., Z. Wei, X. Lee, J. S. Wright, X. Cui, H. Chen, G. Lin (2019): Evapotranspiration characteristics distinct to mangrove ecosystems revealed by multiple-site observations and a modified two-source model, Water Resour. Res., accepted.

Qiu, T., W. Huang, J. S. Wright, Y. Lin, P. Lu, X. He, Z. Yang, W. Dong, H. Lu and B. Wang (2019): Moisture sources for wintertime intense precipitation events over the three snowy subregions of the Tibetan Plateau, J. Geophys. Res. Atmos., accepted.

Tegtmeier, S., J. Anstey, S. Davis, R. Dragani, Y. Harada, I. Ivanciu, R. P. Kedzierski, K. Krüger, B. Legras, C. Long, J. S. Wang, K. Wargan and J. S. Wright (2019): The tropical tropopause layer in reanalysis data sets, Atmos. Chem. Phys. Disc., doi:10.5194/acp-2019-580.

Yan, X., P. Konopka, F. Ploeger, A. Podglajen, J. S. Wright, R. Müller and M. Riese (2019): The efficiency of transport into the stratosphere via the Asian and North American summer monsoon circulations, Atmos. Chem. Phys. Disc., doi:10.5194/acp-2019-586.

2019

Dong, W., Y. Lin, J. S. Wright, Y. Xie, X. Yin and J. Guo (2019): Precipitable water and CAPE dependence of rainfall intensities in China, Clim. Dyn., 52, 3357–3368, doi:10.1007/s00382-018-4327-8.

Ge, W., Y. Yin, J. S. Wright, W. Huang, B. Jia, Y. Wang and Z. Yang (2019): Links between large-scale circulation patterns and daily air quality over central–eastern China during winter, J. Geophys. Res. Atmos., 124, 7147–7163, doi:10.1029/2018JD030154.

Hoffman, L., G. Günther, D. Li, O. Stein, X. Wu, S. Griessbach, Y. Heng, P. Konopka, R. Müller, B. Vogel and J. S. Wright (2019): From ERA-Interim to ERA5: considerable impact of ECMWF's next-generation reanalysis on Lagrangian transport simulations, Atmos. Chem. Phys., 19, 3097–3124, doi:10.5194/acp-19-3097-2019.

Huang, W., Z. Yang, X. He, D. Lin, B. Wang, J. S. Wright, R. Chen, W. Ma and F. Li (2019): A possible mechanism for the occurrence of wintertime extreme precipitation events over South China, Clim. Dyn., 52, 2367–2384, doi:10.1007/s00382-018-4262-8.

Li, H., F. Xu, J. Sun, Y. Lin and J. S. Wright (2019): Subtropical high affects interdecadal variability of tropical cyclone genesis in the South China Sea, J. Geophys. Res. Atmos., 124, 6379–6392, doi:10.1029/2018JD029874.

Lin, D., W. Huang, Z. Yang, X. He, T. Qiu, B. Wang and J. S. Wright (2019): Impacts of wintertime extratropical cyclones on temperature and precipitation over northeastern China during 1979–2016, J. Geophys. Res. Atmos., 124, 1514–1536, doi:10.1029/2018JD029174.

Tao, M., P. Konopka, F. Ploeger, X. Yan, J. S. Wright, M. Diallo, S. Fueglistaler and M. Riese (2019): Multitimescale variations in modelled stratospheric water vapor derived from three modern reanalysis products, Atmos. Chem. Phys., 19, 6509–6534, doi:10.5194/acp-19-6509-2019.

Wei, Z., X. Lee, et al. (2019): A global database of high-frequency isotopic compositions of water vapour measured with high temporal resolution infrared laser spectroscopy, Sci. Data, 6, 180302, doi:10.1038/sdata.2018.302.

Xie, Y., Y. Wang, W. Dong, J. S. Wright, L. Shen and Z. Zhao (2019): Evaluating the response of summertime sulfate to hydroclimate variations in the continental United States: Role of meteorological inputs in the GEOS-Chem model, J. Geophys. Res. Atmos., 124, 1662–1679, doi:10.1029/2018JD029693.

Yang, Z., W. Huang, X. He, Y. Wang, T. Qiu, J. S. Wright and B. Wang (2019): Synoptic conditions and moisture sources for extreme snowfall events over East China, J. Geophys. Res. Atmos., 124, 601–623, doi:10.1029/2018JD029280.

Yu, C., X. Huang, H. Chen, H. C. J. Godfray, J. S. Wright, J. Hall, P. Gong, S. Ni, S. Qiao, G. Huang, Y. Xiao, J. Zhang, Z. Feng, X. Ju, P. Ciais, N. C. Stenseth, D. O. Hessen, Z. Sun, L. Yu, W. Cai, H. Fu, X. Huang, C. Zhang and J. Taylor (2019): Managing nitrogen to restore water quality in China, Nature, 567, 516–520, doi:10.1038/s41586-019-1001-1.

2018

Dong, W., Y. Lin, J. S. Wright, Y. Xie, Y. Ming, H. Zhang, R. Chen, Y. Chen, F. Xu, N. Lin, C. Yu, B. Zhang, S. Jin, K. Yang, Z. Li, J. Guo, L. Wang and G. Lin (2018): Regional disparities in warm season rainfall changes over arid eastern-central Asia, Sci. Rep., 8, 13051.

Dong, W., Y. Lin, J. S. Wright, Y. Xie, F. Xu, K. Yang, X. Li, L. Tian, X. Zhao and D. Cao (2018): Connections between a late summer snowstorm over the southwestern Tibetan Plateau and a concurrent Indian monsoon low pressure system, J. Geophys. Res. Atmos., 123, 13,676–13,691, doi:10.1029/2018JD029710.

Duan, S., J. S. Wright and D. Romps (2018): On the utility (or futility) of using stable water isotopes to study convection, J. Adv. Model. Earth Syst., 10, 516–529, doi:10.1002/2017MS001074.

Huang, W., X. He, Z. Yang, T. Qiu, J. S. Wright, B. Wang and D. Lin (2018): Moisture sources for wintertime extreme precipitation events over South China during 1979–2013, J. Geophys. Res. Atmos., 123, 6690–6712, doi:10.1029/2018JD028485.

Huang, W., T. Qiu, Z. Yang, D. Lin, J. S. Wright, B. Wang and X. He (2018): On the formation mechanism for wintertime extreme precipitation events over the southeastern Tibetan Plateau, J. Geophys. Res. Atmos., 123, 12,692–12,714, doi:10.1029/2018JD028921.

Jin, X., Y.-O. Kwon, C. C. Ummenhofer, H. Seo, F. U. Schwarzkopf, A. Biastoch, C. W. Böning and J. S. Wright (2018): Influences of Pacific climate variability on decadal subsurface ocean heat content variations in the Indian Ocean, J. Climate, 31, 4157–4174, doi:10.1175/JCLI-D-17-0654.1.

Jin, X., Y.-O. Kwon, C. C. Ummenhofer, H. Seo, Y. Kosaka and J. S. Wright (2018): Distinct mechanisms of decadal subsurface heat content variations in the eastern and western Indian Ocean modulated by tropical Pacific SST, J. Climate, 31, 7751–7769, doi:10.1175/JCLI-D-18-0184.1.

Lai, X., J. S. Wright, W. Huang, J. Liang, G. Lin and S. Zhu (2018): Contributions of atmospheric transport and rain–vapor exchange to near-surface water vapor in the Zhanjiang Mangrove Reserve, Southern China: Isotopic perspectives, Atmosphere, 9, 365, doi:10.3390/atmos9090365.

Liang, J., J. S. Wright, X. Cui, W. Gan, L. Sternberg and G. Lin (2018): Leaf anatomical traits determine the 18O enrichment of leaf water in coastal halophytes, Plant Cell Environ.,41, 2744–2757, doi:10.1111/pce.13398.

Li, C., H. Lu, K. Yang, M. Han, J. S. Wright, Y. Chen, L. Yu, S. Xu, X. Huang, W. Gong (2018): Evaluation of SMAP enhanced soil moisture products using high-resolution model simulations and in-situ observations on the Tibetan Plateau, Remote Sens., 10, 535, doi:10.3390/rs10040535.

Lyu, H., H. Lu, L. Mou, W. Li, J. S. Wright, X. Li, X. Li, X. Zhu, J. Wang, L. Yu and P. Gong (2018): Long-term annual mapping of four cities on different continents by applying a deep information learning method to Landsat data, Remote Sens., 10, 471, doi:10.3390/rs10030471.

Martineau, P., J. S. Wright, N. Zhu and M. Fujiwara (2018): A zonal-mean data set of global atmospheric reanalyses on pressure levels, Earth Syst. Sci. Data, 10, 1925–1941, doi:10.5194/essd-10-1925-2018.

Sang, W., Q. Huang, W. Tian, J. S. Wright, J. Zhang, H. Tian, J. Luo, D. Hu and Y. Han (2018): A large eddy model study on the effect of overshooting convection on lower stratospheric water vapor, J. Geophys. Res. Atmos., 123, 10,023–10,036, doi:10.1029/2017JD028069.

Yang, Z., W. Huang, B. Wang, J. S. Wright, R. Chen and W. Ma (2018): Possible mechanisms for four regimes associated with cold events over East Asia, Clim. Dyn., 51, 35–56, doi:10.1007/s00382-017-3905-5.

Yang, Z., W. Huang, T. Qiu, X. He, J. S. Wright and B. Wang (2018): Interannual variation and regime shift of the evaporative moisture sources for wintertime precipitation over South China, J. Geophys. Res. Atmos., 123, 13,168–13,185, doi:10.1029/2018JD029513.

Yu, C., X. Huang, H. Chen, G. Huang, S. Ni, J. S. Wright, J. Hall, P. Ciais, J. Zhang, Y. Xiao, Z. Sun, X. Wang and L. Yu (2018): Assessing the impacts of extreme agricultural droughts in China under climate and socioeconomic changes, Earth's Future, 6, 689–703, doi:10.1002/2017EF000768.

2017

Chen, R., W. Huang, B. Wang, J. S. Wright, W. Ma and Z. Yang (2017): On the co-occurrence of wintertime temperature anomalies over eastern Asia and eastern North America, J. Geophys. Res. Atmos., 122, 6844–6867, doi:10.1002/2016JD026435.

Davis, S. M., M. I. Hegglin, M. Fujiwara, R. Dragani, Y. Harada, C. Kobayashi, C. Long, G. L. Manney, E. R. Nash, G. L. Potter, S. Tegtmeier, T. Wang, K. Wargan and J. S. Wright (2017): Assessment of upper tropospheric and stratospheric water vapour and ozone in reanalyses as part of S-RIP, Atmos. Chem. Phys., 17, 12743–12778, doi:10.5194/acp-17-12743-2017.

Dong, W., Y. Lin, J. S. Wright, Y. Xie, F. Xu, W. Xu and Y. Wang (2017): Indian monsoon low-pressure systems feed up-and-over moisture transport to the southwestern Tibetan Plateau, J. Geophys. Res. Atmos., 122, 12140–12151, doi:10.1002/2017JD027296.

Fujiwara, M., J. S. Wright, G. L. Manney, L. J. Gray, et al. (2017): Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems, Atmos. Chem. Phys., 17, 1417–1452, doi:10.5194/acp-17-1417-2017.

Huang, W., R. Chen, B. Wang, J. S. Wright, Z. Yang and W. Q. Ma (2017): Potential vorticity intrusion regimes over East Asia during winter, J. Geophys. Res. Atmos., 122, 1524–1544, doi:10.1002/2016JD025893.

Li, C., H. Lu, K. Yang, J. S. Wright, L. Yu, Y. Chen, X. Huang and S. Xu (2017): Evaluation of the Common Land Model (CoLM) from the perspective of water and energy budget simulation: towards inclusion in CMIP6, Atmosphere, 8, 141, doi:10.3390/atmos8080141.

Li, H., F. Xu, W. Zhou, D. Wang, J. S. Wright, Z. Liu and Y. Lin (2017): Development of a global gridded Argo dataset with Barnes successive corrections, J. Geophys. Res. Oceans, 122, 866–889, doi:10.1002/2016JC012285.

Wright, J. S., R. Fu, J. Worden, S. Chakraborty, N. Clinton, C. Risi, Y. Sun and L. Yin (2017): Rainforest-initiated wet season onset over the southern Amazon, Proc. Natl. Acad. Sci. USA, 114, 8481–8486, doi:10.1073/pnas.1621516114.

Yang, F., H. Lu, K. Yang, J. He, W. Wang, J. S. Wright, C. Li, M. Han and Y. Li (2017): Evaluation of multiple forcing data sets for precipitation and shortwave radiation over major land areas of China, Hydrol. Earth Syst. Sci., 21, 5805–5821.

2016

Dong, W., Y. Lin, J. S. Wright, Y. Ming, Y. Xie, B. Wang, Y. Luo, W. Huang, J. Huang, L. Wang, L. Tian, Y. Peng and F. Xu (2016): Summer rainfall over the southwestern Tibetan Plateau controlled by deep convection over the Indian subcontinent, Nature Communications, 7, 10925.

Huang, W., B. Wang, J. S. Wright and R. Chen (2016): On the non-stationary relationship between the Siberian High and Arctic Oscillation, PLOS ONE, 11, e0158122.

Huang, W., B. Wang and J. S. Wright (2016): A potential vorticity-based index for the East Asian winter monsoon, J. Geophys. Res. Atmos., 121, 9382–9399, doi:10.1002/2016JD025053.

Yan, X., J. S. Wright, X. Zheng, N. Livesey, H. Vömel and X. Zhou (2016): Validation of Aura MLS retrievals of temperature, water vapour and ozone in the upper troposphere and lower–middle stratosphere over the Tibetan Plateau during boreal summer, Atmos. Meas. Tech., 9, 3547–3566, doi:10.5194/amt-2015-399.

2015

Chakraborty, S., R. Fu, J. S. Wright and S. Massie (2015): Relationships between convective structure and transport of aerosols to the upper troposphere deduced from satellite observations, J. Geophys. Res. Atmos., 120, 6515–6536.

2013

Wright, J. S. and S. Fueglistaler (2013): Large differences in reanalyses of diabatic heating in the tropical upper troposphere and lower stratosphere, Atmos. Chem. Phys., 13, 9565–9576.

2012

Huang, L., R. Fu, J. H. Jiang, J. S. Wright and M. Luo (2012): Geographic and seasonal distributions of CO transport pathways and their roles in determining CO centers in the upper troposphere, Atmos. Chem. Phys., 12, 4683–4698, doi:10.5194/acp-12-4683-2012.

2011

Noone, D., J. Galewsky, Z. Sharp, J. Worden, J. Barnes, D. Baer, A. Bailey, D. Brown, L. Christensen, E. Crosson, F. Dong, J. Hurley, L. Johnson, M. Strong, D. Toohey, A. Van Pelt and J. S. Wright (2011): Properties of air mass mixing and humidity in the subtropics from measurements of the D/H isotope ratio of water vapor at the Mauna Loa Observatory, J. Geophys. Res. Atmos., 116, D22113, doi:10.1029/2011JD015773.

Wright, J. S., R. Fu, S. Fueglistaler, Y. Liu and Y. Zhang (2011): The influence of summertime convection over South-East Asia on water vapor in the tropical stratosphere, J. Geophys. Res., 116, D12302, doi:10.1029/2010JD015416.

2010

Wright, J. S., A. H. Sobel and J. Galewsky (2010): Diagnosis of zonal mean relative humidity changes in a warmer climate using tracers of last saturation, J. Clim., 23, 4556–4570.

2009

Wright, J. S., A. H. Sobel and G. A. Schmidt (2009): Influence of condensate evaporation on water vapor and its stable isotopes in a GCM, Geophys. Res. Lett., 36, L12804, doi:10.1029/2009GL038091.

Wright, J. S., R. Fu and A. J. Heymsfield (2009): A statistical analysis of the influence of deep convection on water vapor variability in the tropical upper troposphere, Atm. Chem. Phys., 9, 5847–5864.

2006

Fu, R., Y. Hu, J. S. Wright, J. H. Jiang, R. E. Dickinson, M. Chen, M. Filipiak, W. G. Read, J. W. Waters and D. L. Wu (2006): Short circuit of water vapor and polluted air to the global stratosphere by convective transport over the Tibetan Plateau, Proc. Natl. Acad. Sci. USA, 103, 5664–5669, doi:10.1073/pnas.0601584103.

Datasets

Wright, J., G. Lin, X. Lai and J. Liang (2018): CN-Gaoqiao, in: Yale University Stable Water Vapor Isotopes Database, curated by Z. Wei and X. Lee.

Wright, J. and N. Zhu (2017): S-RIP: Zonal-mean heating rates of global atmospheric reanalyses on pressure levels. Centre for Environmental Data Analysis, doi:10.5285/70146c789eda4296a3c3ab6706931d56.

Selected Research Presentations

Evaluation and intercomparison of reanalysis diabatic heating and clouds in the tropical UTLS
Versions or selections of this work have been presented at:
   • Forschungszentrum Jülich, Germany, June 2017
   • Chemistry Climate Model Initiative Science Workshop, Toulouse, France, June 2017
   • Lanzhou University, April 2017
   • China Meteorological Administration, CRA-40 Working Group, Beijing, March 2017
   • SPARC Reanalysis Intercomparison Project Annual Workshop, Victoria, BC, October 2016
   • SPARC General Assembly, Queenstown, New Zealand, January 2014 (poster)
   • Seoul National University, October 2013
   • ACAM Workshop, Kathmandu, Nepal, June 2013 (poster)
   • SPARC Reanalysis Intercomparison Project Planning Meeting, Exeter, UK, May 2013 (poster)
   • Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, November 2012
   • Asia-Oceania Geosciences Society Annual Meeting, Singapore, August 2012

Summer rainfall over the southwestern Tibetan Plateau controlled by deep convection over the Indian subcontinent
Versions or selections of this work have been presented at:
   • Lanzhou University, April 2017
   • Xi’an Workshop on Tibetan Plateau Growth and its Environmental Significance, June 2016

A rainforest-initiated wet season over the southern Amazon
Versions or selections of this work have been presented at:
   • Indian Institute of Technology, Delhi, January 2016
   • University of California at Berkeley, September 2015
   • Cornell University, Ithaca, NY, August 2015
   • Asia-Oceania Geosciences Society Annual Meeting, Sapporo, July 2014 (poster)
   • AGU Annual Meeting, San Francisco, December 2013
   • Beijing Normal University, November 2013
   • Institute for Tibetan Plateau Research, Beijing, October 2013
   • Seoul National University, October 2013

The SPARC Reanalysis Intercomparison Project: an overview of the interim report
Versions or selections of this work have been presented at:
   • SPARC Reanalysis Intercomparison Project Annual Workshop, Victoria, BC, October 2016
   • Asia-Oceania Geosciences Society Annual Meeting, Beijing, August 2016 (invited)

Exploring influences of deep convection and cloud processes on tropical stratospheric water vapor
Versions or selections of this work have been presented at:
   • Asia-Oceania Geosciences Society Annual Meeting, Sapporo, July 2014 (poster)
   • Sixth Workshop on STSI over the Tibetan Plateau, Austin, TX, February 2012
   • Atmospheric Sciences Seminar, Texas A&M University, October 2011
   • European Geophysical Union General Assembly, April 2010
   • NASA Sounder Meeting, Greenbelt, MD, September 2009 (invited)

Diagnosis of relative humidity changes in a warmer climate using tracers of last saturation
Versions or selections of this work have been presented at:
   • Vortex Dynamics Group Seminar, University of St. Andrews, St. Andrews, UK, March 2011
   • Seminars on Theoretical Geophysics, University of Cambridge, Cambridge, UK, February 2010
   • Climate System Science Seminar Series, University of Texas at Austin, January 2010
   • American Meteorological Society Annual Meeting, Atlanta, GA, January 2010
   • Geophysical Sciences Colloquium, University of Chicago, Chicago, IL, October 2009
   • Byrd Polar Research Center Seminar, Ohio State University, Columbus, OH, October 2009
   • SEAS Colloquium in Climate Science, Columbia University, New York, NY, September 2009

Influences of microphysical processes on atmospheric humidity: Observations and model results
Versions or selections of this work have been presented at:
   • Centre for Atmospheric Science, University of Cambridge, January 2011
   • AOSS Departmental Seminar, University of Michigan, Ann Arbor, MI, October 2009
   • AOS Departmental Seminar, McGill University, Montreal, QC, September 2009
   • MASS Seminar Series, Massachusetts Institute of Technology, Boston, MA, March 2009
   • AGU Annual Meeting, San Francisco, December 2008
   • Chapman Conference on Atmospheric Water Vapor, Kailua-Kona, HI, October 2008 (poster)
   • CEAFM Lecture Series, Johns Hopkins University, Baltimore, November 2007
   • International Union of Geophysics and Geodesy General Assembly, Perugia, Italy, July 2007

Relationships between the North Atlantic Oscillation and isentropic water vapor transport into the lower stratosphere
Versions or selections of this work have been presented at:
   • AMS Geophysical Fluid Dynamics Meeting, Santa Fe, NM, June 2007

Invited and Guest Lectures

2017

J. S. Wright and co-authors, Origins and impacts of differences in reanalysis diabatic heating rates in the TTL, Chemistry–Climate Model Initiative Science Workshop, Toulouse, France, invited presentation.

J. S. Wright and co-authors, A rainforest initiated wet season onset over the southern Amazon, Blue Ocean Forum (蓝海论坛) on Isotopic Tracers in Water and Climate Studies of the Past and Present, Tongji University, Shanghai, China, invited presentation.

2016

J. S. Wright (w/ X. Sun), Evaluation and intercomparison of tropical high clouds in reanalyses, SPARC Reanalysis Intercomparison Project Annual Workshop, Victoria, British Columbia, invited presentation.

J. S. Wright and co-authors, The SPARC Reanalysis Intercomparison Project (S-RIP): A brief overview of the Interim Report, Asia–Oceania Geosciences Society Annual Meeting, Middle Atmosphere Session, Beijing, China, invited presentation.

2013

J. S. Wright, Understanding the hydrologic cycle response to climate change, International Seminar on Climate System and Climate Change, China Meteorological Administration, Beijing, invited lecture.

J. S. Wright, An introduction to coupled models of the atmosphere–ocean system, Inspur Climate Modeling Workshop, Tsinghua University, Beijing, invited lecture.

2012

J. S. Wright, Understanding recent and projected changes in the atmospheric water cycle, 全球变化生态学前沿 (Frontiers in Global Change Ecology), Tsinghua University, Beijing, guest lecture.

J. S. Wright, Stable water isotopes in the atmosphere, 全球变化生态学前沿 (Stable Isotope Ecology: Principles and Applications), Tsinghua University, Beijing, guest lecture. [revised for 2013]

J. S. Wright, Water vapor in the stratospheric overworld, 地球系统科学前沿 (Earth System Science Seminar), Tsinghua University, Beijing, guest lecture. [lecture notes]

2011

J. S. Wright, Predictability of weather and climate: insights from the Lorenz system, Differential Equations, University of Alaska–Southeast, Juneau, AK, guest lecture.

2009

J. S. Wright, Event-based climatologies using satellite data: A Lagrangian approach, NASA Sounder Science Team Meeting, Greenbelt, Maryland, USA, invited presentation.

Code
To be updated soon. In the meantime, see my short course in Python.