Junhong (June) Wang, Ph.D.

Scientist III, Earth Observing Laboratory (EOL), National Center for Atmospheric Research (NCAR), Boulder, CO, USA

Research Associate Professor, Department of Atmospheric & Environmental Sciences University at Albany, SUNY, Albany, NY, USA

Tel. 518-442-3478; email: junhong@ucar.edu & jwang20@albany.edu

 

 

 

Education:

Ph.D., Atmospheric Science, Columbia University, New York

M.S., Atmospheric Science, National Research Center for Marine Environment Forecasts (NRCMEF), Beijing, China

B.S., Atmospheric Science, Peking University, Beijing, China

 

Professional Experiences:

·   2012-present: Research Associate Professor, Department of Atmospheric & Environmental Sciences University at Albany, SUNY, Albany, NY

·        2008-present: Scientist III, Earth Observing Lab (EOL), NCAR, Boulder, CO

·        6/2009-8/2009: Visiting Scientist, U.K. Met Office Hadley Centre, Exeter, U.K.

·        2005-2008: Scientist II, EOL, NCAR, Boulder, CO

·        2002-2005: Scientist I, Atmospheric Technology Division (ATD), NCAR, Boulder, CO

·        1999-2001: Associate Scientist, ATD, NCAR, Boulder, CO

·        1997-1998: Postdoctoral Research Scientist, University of Colorado, Boulder, CO

·        1991-1996: Graduate Research Assistant, NASA Goddard Institute for Space Studies (GISS), New York

·        1993-1994: Teaching Assistant for Atmospheric & Climate Courses, Columbia Univ.

·        6/1991-9/1991: Research Assistant, NASA GISS, New York

·        7/1990-12/1990: Research Associate, NRCMEF/Peking University, China

·        1988-1990: Graduate Research Assistant, NRCMEF/Peking Univ., China

 

 Research Interests:

·        The global water cycle: Creating and improving global water vapor datasets using radiosonde and ground-based GPS observations, studying water vapor variability and changes, and correcting radiosonde humidity biases in measurements from field projects and studying its impacts on convective processes, precipitation and radiation;

·        In-situ sounding (radiosonde, dropsonde and so on) data quality and technologies: Identification and correction of systematic biases within in-situ soundings and developing new sounding technologies;

·        Global Navigation Satellite Systems (GNSS) measurements and their application to weather and climate studies;

·        Climate observations: Contributing significantly to GCOS Reference Upper Air Network (GRUAN)’s instigation, planning and implementation;

·        Creation and analysis of climate datasets: A long-term, global, 2-hourly GNSS precipitable water (PW) dataset, a homogenized global radiosonde humidity dataset, a long-term, high-quality, high resolution hurricane dropsonde climatology, and a 20-year global cloud vertical structure (CVS) dataset;

·        Cloud vertical structure observations and variability; and

·        Long-term climate changes in water vapor, clouds and other fields.

 

Refereed Journal Articles: (links given for selected papers)

1.              Ciesielski, P. E., H. Yu, R. H. Johnson, K. Yoneyama, M. Katsumata, C. N. Long, J. Wang, S. Loehrer, K. Young, S. F. Willams, W. Brown, J. Braun, T. Van Hove, 2014: Quality-Controlled Upper-Air Sounding Dataset for DYNAMO/CINDY/AMIE: Development and Corrections. J. Atmos. Oceanic Technol., in press.

2.             Bock, O., P. Willis, J. Wang and C. Mears, 2014: A high-quality, homogenized, global, long-term (1993-2008) DORIS precipitable water dataset for climate monitoring and model verification. J. Geophys. Res., revised.

3.             Mears, C., J. Wang, S. Ho, and L. Zhang, 2013: Total column water vapor, in State of the Climate in 2012. Bull. Amer. Meteorol. Soc., 94, S20-21.

4.             Wang, J., T. Hock, S. A. Cohn, C. Martin, N. Potts, T. Reale, B. Sun and F. Tilley, 2013b: Unprecedented upper air dropsonde observations over Antarctica from the 2010 Concordiasi Experiment: Validation of satellite-retrieved temperature profiles. Geophys. Res. Lett., DOI: 10.1002/grl.50246. (Paper, EOS highlight)

5.             Cohn, S. A., T. Hock, P. Cocquerez, J. Wang and others, 2013: Driftsondes: Providing In-Situ Long-Duration Dropsonde Observations Over Remote Regions. Bull. Amer. Meteor. Soc., 10.1175/BAMS-D-12-00075.1.

6.             Wang, J., L. Zhang, A. Dai, F. Immler, M. Sommer and H. Voemel, 2013a: Radiation dry bias correction of Vaisala RS92 humidity data and its impacts on historical radiosonde data. J. Atmos. Oceanic Technol., 30, 197-214. (paper)

7.             Rabier, F., S. Cohn, P. Cocquerez, A. Hertzog, L. Avallone, T. Deshler, J. Haase, T. Hock, A. Doerenbecher, J. Wang, and others, 2013: The Concordiasi field experiment over Antarctica: first results from innovative atmospheric measurements, Bull. Amer. Meteor. Soc., DOI:10.1175/BAMS-D-12-00005.1.

8.             Mears, C., J. Wang, S. Ho, L. Zhang and X. Zhou, 2012: Total column water vapor, in State of the Climate in 2011. Bull. Amer. Meteorol. Soc., 93, S25-S26.

9.             Zhao, T., A. Dai, and J. Wang, 2012: Long-term trend of upper-air humidity over China from homogenized radiosonde data. J. Climate, 25, 4549-4567.

10.           Ciesielski, P. E., P. T. Haertel, R. H. Johnson, J. Wang, and S. M. Loehrer, 2012: Developing High-Quality Field Program Sounding Datasets. Bull. Amer. Meteorol. Soc., 93, 325–336.

11.           Mears, C., J. Wang, S. Ho, L. Zhang and X. Zhou, 2011:  Total column water vapor, in State of the Climate in 2010. Bull. Amer. Meteorol. Soc., 92 (6), S41-S42.

12.           Dai, A., J. Wang, P. W. Thorne, D. E. Parker, L. Haimberger, and X. L. Wang, 2011: A New Approach to Homogenize Daily Radiosonde Humidity Data J. Climate, 24, 965-991.

13.           Wang, J., L. Zhang, P.-H. Lin, Mark Bradford, Harold Cole, Jack Fox, Terry Hock, Dean Lauritsen, Scot Loehrer, Charlie Martin, Joseph VanAndel, Chun-Hsiung Weng and Kathryn Young, 2010: Water vapor variability and comparisons in subtropical Pacific from T-PARC Driftsonde, COSMIC and reanalyses. J. Geophys. Res., 115, D21108, doi:10.1029/2010JD014494. (paper)

14.           Ho, S.-P., Y.-H. Kuo, X. Zhou, D. Hunt and J. Wang, 2010: Global Comparisons of Radiosonde Water Vapor Measurements in the Troposphere using GPS Radio Occultation from COSMIC and ECMWF Analysis. J. Remote Sensing, 2, 1320-1330, doi:10.3390/rs2051320.

15.           Mears, C., J. Wang, S. Ho, L. Zhang and X. Zhou, 2010:  Total column water vapor, in State of the Climate in 2009. Arndt, D. S., M. O. Baringer, M. R. Johnson eds., Bull. Amer. Meteorol. Soc., 91, S24.

16.           Ciesielski, P. E., W.-M. Chang, S.-C. Huang, R. H. Johnson, B. J.-D. Jou, W.-C. Lee, P.-H. Lin, C.-H. Liu and J. Wang, 2010: Quality Controlled Upper-Air Sounding Dataset for TiMREX/SoWMEX: Development and Corrections. J. Atmos. Oceanic Technol., 27, No. 11, 1802-1821.

17.           Mears, C., J. Wang, and L. Zhang, 2009:  Total column water vapor, in State of the Climate in 2008. Peterson, T.C., and M. O. Baringer eds., Bull. Amer. Meteorol. Soc., 90, S24.

18.           Wang, J., J. Bian, W. O. Brown, H. Cole, V. Grubisic, and K. Young, 2009: Vertical air motion from T-REX radiosonde and dropsonde data. J. Atmos. Oceanic Technol., 26, 928-942. (paper)

19.           Ciesielski P. E., R. H. Johnson, and J. Wang, 2009: Correction of humidity biases in Vaisala RS80-H sondes during NAME. J. Atmos. Oceanic Technol., 26, 1763–1780.

20.          Seidel, D.J., F.H. Berger, H.J. Diamond, J. Dykema, D. Goodrich, F. Immler, W. Murray, T. Peterson, D. Sisterson, M. Sommer, P. Thorne, H. Vömel, J. Wang, 2009: Reference Upper-Air Observations for Climate: Rationale, Progress and Plans. Bull. Amer. Meteorol. Soc., 90, 361-369.

21.           Wang, J., and L. Zhang, 2009: Climate applications of a global, 2-hourly atmospheric precipitable water dataset from IGS ground-based GPS measurements. J. of Geodesy, 83, 209-217. (paper)

22.          Wang, J. and L. Zhang, 2008: Systematic errors in global radiosonde precipitable water data from comparisons with ground-based GPS measurements. J. Climate, 21, 2218-2238. (paper)

23.          Wang, J., L. Zhang, A. Dai, T. Van Hove, J. Van Baelen, 2007: A near-global, 2-hourly data set of atmospheric precipitable water from ground-based GPS measurements. Journal of Geophysical Research, 112, D11107. 10.1029/2006JD007529.  (paper)

24.          Poulos, G. S., J. Wang, D. K. Lauritsen, and H. L. Cole, 2007: A note on the use of targeted dropwindsondes in complex terrain. J. Atmos. Oceanic Technol, 24, 1489-1494. 10.1175/JTECH2065.1.

25.          Behrendt, A., V. Wufmeyer, P. D. Girolamo, C. Kiemle, H.-S. Bauer, T. Schaberl, D. Summa, D. N. Whiteman, B. B. Demoz, E. V. Browell, S. Ismail, R. Ferrare, S. Kooi, G. Ehret, J. Wang, 2007: Intercomparison of water vapor data measured with lidar during IHOP_2002, Part 1: Airborne to ground-based lidar systems and comparisons with chilled-mirror hygrometer radiosondes. Journal of Atmospheric and Oceanic Technology, 24, 3-21. 10.1175/JTECH1924.1.

26.           Whiteman, D. N., B. Demoz, P. Di Girolamo, J. Comer, I. Veselovskii, K. Evans, Z. Wang, D. Sabatino, G. Schwemmer, B. Gentry, R-F. Lin, A. Behrendt, V. Wulfmeyer, E. Browell, R. Ferrare, S. Ismail, J. Wang, 2006: Raman Water Vapor Lidar Measurements During the International H2O Project. II. Case Studies. J. Atmos. Oceanic Technol., 23, 170-183.

27.           Wang, J., L. Zhang, and A. Dai, 2005: Global estimates of water-vapor-weighted mean temperature of the atmosphere for GPS applications. J. Geophys. Res., 110, D21101, doi:10.1029/2005JD006215. (paper)

28.           Gochis, D., B. Anderson, A. Barros, A. Gettelman, J. Wang, and other co-authors, 2005: The water cycle across scales. Bull. Amer. Meteor. Soc., 86, 1743-1746.

29.           Rossow, W. B., Y. Zhang and J. Wang, 2005: A statistical model of cloud vertical structure based on reconciling cloud layer amounts inferred from satellites and radiosonde humidity profiles. J. Climate, 18, 3587-3605.

30.           Seidel, D. J., M. Free and J. Wang, 2005: The diurnal cycle of temperature in the free atmosphere estimated from radiosondes. J. Geophys. Res., 110, D09102, doi:10.1029/2004JD005526.

31.            Kuo, Y.-H., W. S. Schreiner, J. Wang, D. L. Rossiter and Y. Zhang, 2005: Comparison of GPS radio occultation soundings with radiosondes. Geophys. Res. Lett., 32, L05817, doi: 10.1029/2004GL021443.

32.           Wang, J., 2005: Evaluation of performance of the dropsonde humidity sensor using data from DYCOMS-II and IHOP_2002. J. Atmos. Oceanic Technol., 22, No. 3, 247-257. (paper)

33.          Roy, B., J. B. Halverson and J. Wang, 2004: The influence of radiosonde 'age' on TRMM field campaign soundings humidity correction.  J. Atmos. Oceanic Technol., 21, 470-480.

34.          Weckwerth, T. M, D. B. Parsons, S. E. Koch, J. A. Moore, M. A. LeMone, B. B. Demoz, C. Flamant, B. Geerts, J. Wang and W. F. Feltz, 2004: An overview of the international H20 project (IHOP_2002) and some preliminary highlights. Bull. Amer. Meteor. Soc., 85, 253-277.

35.          Wang, J., D. J. Carlson, D. B. Parsons, T. F. Hock, D. Lauritsen, H. L. Cole, K. Beierle and N. Chamberlain, 2003: Performance of operational radiosonde humidity sensors in direct comparison with a chilled mirror dew-point hygrometer and its climate implication. Geophy. Res. Lett., 30, 10.1029/2003GL016985 (paper)

36.          Ciesielski, P. E., R. H. Johnson, P. T. Haertel and J. Wang, 2003: Corrected TOGA COARE sounding humidity data: Impact on convection and climate. J. Climate, 18, 2370-2384.

37.          Wang, J., H. L. Cole, D. J. Carlson, E. R. Miller, K. Beierle, A. Paukkunen, and T. K. Laine, 2002: Corrections of humidity measurement errors from the Vaisala RS80 radiosonde – Application to TOGA_COARE data. J. Atmos. Oceanic Technol., 19, 981-1002. (paper)

38.          Dai, A., J. Wang, R. H. Ware, and T. M. Van Hove, 2002: Diurnal variation in atmospheric water vapor over North America and its implications for sampling errors in radiosonde humidity. J. Geophys. Res., 107(D10), 10.1029/2001JD000642.

39.          Wang, J., H. L. Cole, and D. J. Carlson, 2001: Water vapor variability in the tropical western Pacific from a 20-year radiosonde data. Advances in Atmos. Sci., 18, 752-766. (paper)

40.          Wang, J., W. B. Rossow and Y.-C. Zhang, 2000: Cloud vertical structure and its variations from a 20-year global rawinsonde dataset. J. Climate, 13, 3041-3056. (paper)

41.           Dai, A. and J. Wang, 1999: Diurnal and semidiurnal tides in global surface pressure fields. J. Atmos. Sci., 56, 3874-3891.

42.          Wang, J., W. B. Rossow, T. Uttal, and M. Rozendaal, 1999: Variability of cloud vertical structure during ASTEX observed from a combination of rawinsonde, radar, ceilometer and satellite. Monthly Weather Review, 127, 2484-2502. (paper)

43.          Wang, J. and W.B. Rossow, 1998: Effects of cloud vertical structure on atmospheric circulations in the GISS GCM. J. Climate, 11, 3010-3029. (paper)

44.          Wang, J. and W.B. Rossow, 1995: Determination of cloud vertical structure from upper-air observations. J. Appl. Meteor., 34, 2243-2258. (paper)

45.          Poore, K.D., J. Wang and W.B. Rossow, 1995: Cloud layer thicknesses from a combination of surface and upper-air observations. J. Climate, 8, 550-568. (paper)

46.          Zhao, B., J. Wang and Y. Zhu, 1993: Meteorological satellite remote sensing of tropopause height. Chinese Science Bulletin, 38, 317-321.

 

Other Publications: 

1.  Thorne, P.W., others, and J. Wang, 2013: GCOS Reference Upper Air Network (GRUAN): Steps Towards Assuring Future Records. 4. AIP Conf. Proc. 1552, pp. 1042-1047; doi:http://dx.doi.org/10.1063/1.4821421 (6 pages).

2. Gardiner, T., F. Madonna, D. Seidel, J. Wang, D. Whiteman, J. Dykema, A. Fasso, P. Thorne, G. Bodeker, 2013: Sampling and Measurement Issues in Establishing a Climate Reference Upper Air Network. AIP Conf. Proc. 1552, pp. 1066-1071; doi:http://dx.doi.org/10.1063/1.4821422 (6 pages).

3. Shoji, Y., J. Braun, J. Wang, K. Rannat, G. Dick, Gunnar, Elgered, S. Gutman and J. Wickert, 2012: GRUAN ground-based GNSS site guidelines. GRUAN-TD-6, GRUAN Lead Centre, available on www.gruan.org.

4.  Wang, J., K. Young, and L. Zhang, 2009: Upper-Air Observations from Dropsondes over Pacific Ocean from THORPEX Pacific Asian Regional Campaign (T-PARC). Extended abstract for The 8th International Symposium on Tropospheric Profiling: Needs, Technologies and Applications (ISTP) 18-23 October 2009, Delft, the Netherlands.

5.  Young, K., J. Wang, and B. Arensdorf, 2009: Consistent Quality Control on 13-year (1996-2008), High Resolution GPS Dropsonde Data for Hurricane Research. Extended abstract for The 8th International Symposium on Tropospheric Profiling: Needs, Technologies and Applications (ISTP) 18-23 October 2009, Delft, the Netherlands.

6.  Wang, J., and L. Zhang, 2008: Validation of Atmospheric Precipitable Water in Three Reanalysis Products using Ground-based GPS Measurements. Extended abstract for Third WCRP International Conference on Reanalysis, 28 January – 1 February 2008, Tokyo, Japan.

7.  Young, K., and J. Wang, 2007: Comparison of 10-Year (1996-2006) Operational Radiosonde Data with ARM Radiosonde Data & Remote Sensing Data. Proceeding of Fifteen Symposium on Meteorological Observations and Instrumentation, 14-18 January 2007, San Antonio, Texas, American Meteorological Society.

8.  Wang, J., L. Zhang and A. Dai, 2006: A global, 2-hourly atmospheric precipitable water dataset from IGS ground-based GPS measurements: Scientific applications and Future needs. Proceeding of IGS workshop 2006, 8 – 11 May 2006, Darmstadt, Germany.

9.  Wang, J., and K. Young, 2005: Comparisons of 7-year radiosonde data from two neighboring stations and estimation of random error variances for four types of radiosondes. Proceeding of Thirteen Symposium on Meteorological Observations and Instrumentation, 19-24 June 2005, Savannah, Georgia, American Meteorological Society.

10.   Wang, J., 2003: Intercomparisons of water vapor measurements during IHOP - radiosonde, dropsonde and reanalysis. Proceeding of Sixth International Symposium on Tropospheric Profiling, 14-20 September 2003, Leipzig, Germany.

11.   Wang, J., T.F. Hock, D. Lauritsen, H.L. Cole, K. Beierle, N. Chamberlain, D.B. Parsons and D.J. Carlson, 2003: A reference radiosonde system for improving water vapor measurement in IHOP_2002. Proceeding of Symposium on Observing and Understanding the Variability of Water in Weather and Climate, 9-13 February 2003, Long Beach, CA.

12.   Beierle, K., J. Wang, and N. Chamberlain, 2003: The importance of Recording Pre-launch Radiosonde Data. Proceeding of 12th Symposium of Meteorological Observations and Instrumentation, 9-13 February 2003, Long Beach, CA.

13.   Wang, J., T.F. Hock, D. Lauritsen, H.L. Cole, K. Beierle, N. Chamberlain, D.B. Parsons and D.J. Carlson, 2002: A reference radiosonde system for climate and weather research - IHOP experience. SPIE's Third International Asia-Pacific Environmental Remote Sensing Symposium 2002: Remote Sensing of the Atmosphere, Environment, and Space, 23-27 October 2002, Hangzhou, China.

14.   Carlson, D. J. and J. Wang, 2002: NCAR and Vaisala collaboration project for RS80 humidity data set corrections - steps to improved humidity measurement. Vaisala News, 159/2002.

15.   Wang, J., 2002: Understanding and correcting humidity measurement errors from Vaisala RS80 and VIZ radiosondes. Radiosonde Workshop, 21-23 May 2002, Hampton University, Virginia.

16.   Ciesielski, P. E., R. H. Johnson, and J. Wang, 2002: Impacts of humidity-corrected sonde data on TOGA COARE analyses. 25th Conference on Hurricanes and Tropical Meteorology, 29 April-3 May 2002, San Diego, CA.

17.   Wang, J., A. Dai, D. J. Carlson, R. H. Ware, and J. C. Liljegren, 2002: Diurnal variation in water vapor and liquid water profiles from a  new microwave radiometer profiler. Sixth Symposium on Integrated Observing Systems, 13-18 January 2002, Orlando, Florida, pp. 198-201.

18.   Wang, J., H. L. Cole, D. J. Carlson, and A. Paukkunen, 2001: Performance of Vaisala RS80 radiosonde on measuring upper-tropospheric humidity after corrections. Eleventh Symposium on Meteorological Observations and Instrumentation, 14-19 January 2001, Albuquerque, NM, pp. 94-97.

19.   Wang, J., E. R. Miller, H. L. Cole, D. J. Carlson, K. Beierle, and A. Paukkunen, 2000: Correction of humidity data from the Vaisala RS80 radiosondes during TOGA_COARE: Data release. UCLA Tropical Meteorology Newsletter No. 41 (December 3, 2000).

20.   Wang, J., W. Brown, D. J. Carlson, H. L. Cole, E. R. Miller, D. B. Parsons and K. Yoneyama, 2000: Ground check corrections in radiosonde data on the R/V Mirai during Nauru99. In "Proceeding of the Tenth Atmospheric Radiation Measurement (ARM) Program Science Team Meeting" in San Antonio, TX, March 13-17, 2000.

21.   Miller, E. R., J. Wang and H. L. Cole, 1999: Correction for dry bias in Vaisala radiosonde RH data. In "Proceeding of the Ninth Atmospheric Radiation Measurement (ARM) Program Science Team Meeting" in San Antonio, Texas, March 22-26, 1999.

22.   Wang, J., J. A. Curry and W. B. Rossow, 1998: Cloud vertical structure in TOGA_COARE. in "Proceeding of the COARE98" in Boulder, CO, July 7-14, 1998.

23.   Wang, J. and J. A. Curry, 1998: Relative humidity variations in the tropical western Pacific and relations with deep convective clouds. In "Proceeding of the Eighth Atmospheric Radiation Measurement (ARM) Program Science Team Meeting" in Tucson, AZ, March 23-27, 1998.

24.   Wang, J., 1997: Determination of cloud vertical structure from upper air observations and its effects on atmospheric circulation in a GCM. Ph.D. Dissertation, 233pp., Dept. of Earth and Environmental Sciences, Columbia University, New York.

25.   Wang, J. and W. B. Rossow, 1996: Effects of cloud vertical structure on atmospheric circulations in a GCM. In: Preprint of Second International Scientific Conference on the Global Energy and Water Cycle, Jun. 17-21, 1996, Washington, D.C., 398-399.

26.   Wang, J., W. B. Rossow and K. D. Poore, 1994: Variation of cloud layer thickness from a combination of surface and upper air observation. In: Proceedings of AMS Sixth Conference on Climate Variations, Jan. 23-28, 1994, Nashville, Tennessee, 274-277.