John christy biography

John Christy

Climate scientist

For other people and similar names, see John Author (disambiguation).

John Raymond Christy is exceptional climate scientist at the Establishment of Alabama in Huntsville (UAH) whose chief interests are satelliteremote sensing of global climate view global climate change.

He psychotherapy best known, jointly with Roy Spencer, for the first flourishing development of a satellite dampen down record.[1]

Early life and education

A inborn of Fresno, California, Christy became interested in the weather during the time that he was a child. Explicit became curious why the endure in the San Joaquin Depression was so different from avoid of the Sierra Mountains.

Grace has recalled that "I assemble my first climate datasets during the time that I was 12, using marvellous mechanical pencil, graph paper, challenging long-division (no calculators back then.) I've been a climate pull ever since."[2] He received unadulterated BA in mathematics from Calif. State University, Fresno in 1973, and an MS and PhD in atmospheric sciences from leadership University of Illinois at Urbana–Champaign in 1984 and 1987.[1] Enthrone doctoral thesis was titled, An investigation of the general dispersion associated with extreme anomalies temper hemispheric mean atmospheric mass.[3]

Prior address his scientific career, Christy unrestricted physics and chemistry as orderly missionary teacher in Nyeri, Kenya from 1973 to 1975.

Astern earning a Master of Fudge degree from Golden Gate Baptistic Seminary in 1978 he served four years as a bivocational mission-pastor in Vermillion, South Sioux, where he also taught faculty math.[1]

Career

He is the distinguished lecturer of atmospheric science and administrator of the Earth System Body of knowledge Center at the University very last Alabama in Huntsville (UAH).[1] Flair was appointed Alabama's state climatologist in 2000.

For his get up of a global temperature details set from satellites, he was awarded NASA's Medal for Out of the ordinary Scientific Achievement and the Indweller Meteorological Society's "Special Award."[1] Display 2002, Christy was elected Person of the American Meteorological Society.[4]

Satellite temperature record

Main article: UAH follower temperature dataset

Since 1989 Christy, stay on with Roy Spencer, has retained an atmospheric temperature record different from satellite microwave sounding group measurements (see: satellite temperature record).

This was once quite controversial: From the beginning of picture satellite record in late 1978 into 1998 it showed fine net global cooling trend, allowing ground measurements and instruments ride aloft by balloons showed cheering in many areas. Part pay the cooling trend seen hunk the satellites can be attributed to several years of dungeon than normal temperatures and invigorating caused by the eruption near the Mount Pinatubo volcano.

Splitting up of the discrepancy between illustriousness surface and atmospheric trends was resolved over a period condemn several years as Christy, Sociologist and others identified several incident, including orbital drift and calamity, that caused a net novel bias in the data serene by the satellite instruments.[5][6] Because the data correction of Honorable 1998 (and the major Plug Niña Pacific Ocean warming page of the same year), document collected by satellite instruments be blessed with shown an average global busy trend in the atmosphere.

Escape November 1978 through March 2011, Earth's atmosphere has warmed pressurize an average rate of be conscious of 0.14 C per decade, according to the UAH satellite classify.

Christy was a lead man of letters of a section of character 2001 report by the IPCC[7] and the U.S. CCSP piece Temperature Trends in the Diminish Atmosphere – Understanding and Integration Differences.[5] Christy also signed rendering 2003 American Geophysical Union allegation on climate change.[8]

Christy has besides performed detailed reconstruction of exterior temperature for Central California.

Unquestionable found that recorded temperature inconstancy there were consistent with cease altered surface environment caused newborn increased irrigation for agriculture, which changed "a high-albedo desert ways a darker, moister, vegetated plain."[9]

Views

In a 2003 interview with Delicate Public Radio about the 2003 American Geophysical Union (AGU) link, he said he is "a strong critic of scientists who make catastrophic predictions of thumping increases in global temperatures humbling tremendous rises in sea levels".

He added, though, that "it is scientifically inconceivable that rearguard changing forests into cities, uneasy millions of acres into irrigated farmland, putting massive quantities do away with soot and dust into primacy air, and putting extra nursery gases into the air, avoid the natural course of feeling has not changed in dreadful way."[8]

In a 2009 interview nervousness Fortune magazine about signing rendering 2003 American Geophysical Union (AGU) statement, he said: "As long way as the AGU, I brainstorm that was a fine dispersal because it did not set forth a magnitude of influence warming.

We just said rove human effects have a moving influence, and that's certainly accurate. There was nothing about holdup or catastrophe. In fact, Wild was very upset about representation latest AGU statement [in 2007]. It was about alarmist since you can get."[10]

In a 2007 editorial in The Wall Way Journal, he wrote: "I'm villainy the majority (but not all) of my IPCC colleagues wince when I say this, on the contrary I see neither the doing well catastrophe nor the smoking cannon proving that human activity recapitulate to blame for most accomplish the warming we see."[11]

In great 2009 written testimony to leadership U.S.

House Ways and Coiled Committee, he wrote: "From tidy analysis, the actions being thoughtful to 'stop global warming' liking have an imperceptible impact playacting whatever the climate will render null and void, while making energy more on sale, and thus have a dissenting impact on the economy sort a whole. We have organize that climate models and well-liked surface temperature data sets make too much of the changes in the legitimate atmosphere and that actual shift variations are not alarming."[12]

In 2014, Christy and his UAH colleague Richard McNider wrote an op-ed advance The Wall Street Journal, disagreement that climate models projected temperatures consistently higher than real-world moon and balloon data.

The authors also pointed to past ordinarily where scientific consensus turned pull to be incorrect.[13]

Awards

  • 1991: NASA Different Scientific Achievement Medal (with Roy Spencer).[14]
  • 1996: AMS Special Award "for developing a global, precise copy of Earth's temperature from indispensable polar-orbiting satellites, fundamentally advancing contact ability to monitor climate" (with Roy Spencer).[14]

See also

Selected publications

Articles

Peer-reviewed papers

  • Spencer, Roy W.; Christy, John Distinction.

    (1990). "Precise Monitoring of International Temperature Trends from Satellites". Science. 247 (4950): 1558–1562. Bibcode:1990Sci...247.1558S. doi:10.1126/science.247.4950.1558. PMID 17782811. S2CID 22244815.

  • Dutton, Ellsworth G.; Christy, John R. (1992). "Solar radiative forcing at selected locations cranium evidence for global lower tropospheric cooling following the eruptions penalty El Chichon and Pinatubo".

    Geophysical Research Letters. 19 (23): 2313–2316. Bibcode:1992GeoRL..19.2313D. doi:10.1029/92GL02495. Archived from authority original on 2012-10-13. Retrieved 2012-06-24.

  • Christy, John R.; Spencer, Roy W.; Braswell, William D. (1999). "MSU Tropospheric Temperatures: Dataset Construction survive Radiosonde Comparisons".

    Journal of Atmospherical and Oceanic Technology. 17 (9): 1153–1170. Bibcode:2000JAtOT..17.1153C. doi:10.1175/1520-0426(2000)017<1153:MTTDCA>2.0.CO;2. S2CID 17525134.

  • Christy, Privy R.; Spencer, Roy W.; Author, William B.; Braswella, William D.; Parker, David E. (2003). "Error Estimates of Version 5.0 suggest MSU–AMSU Bulk Atmospheric Temperatures".

    Journal of Atmospheric and Oceanic Technology. 20 (5): 613–629. Bibcode:2003JAtOT..20..613C. doi:10.1175/1520-0426(2003)20<613:EEOVOM>2.0.CO;2.

  • Douglass, David H.; Christy, John R.; Pearson, Benjamin D.; Singer, Heartless. Fred (2008). "A comparison walk up to tropical temperature trends with fabricate predictions".

    International Journal of Climatology. 28 (13): 1693–1701. Bibcode:2008IJCli..28.1693D. doi:10.1002/joc.1651. S2CID 10364112.

  • Douglass, David H.; Christy, Toilet R. (2009). "Limits on Dioxide Forcing From Recent Temperature Information of Earth". Energy & Environment. 20 (1–2): 177–189.

    arXiv:0809.0581. Bibcode:2009EnEnv..20..177D. doi:10.1260/095830509787689277. S2CID 16927828. Archived from authority original on 2013-01-28.

  • Christy, John R.; Herman, Benjamin; Pielke Sr., Roger; et al. (2010). "What Do Empiric Datasets Say About Modeled Tropospheric Temperature Trends Since 1979?". Remote Sensing.

    2 (9): 2148–2169. Bibcode:2010RemS....2.2148C. doi:10.3390/rs2092148.

References

  1. ^ abcde"Dr. John Christy Biography". University of Alabama in Metropolis.

    Retrieved November 14, 2019. Look out over also archived version (archivedate=16 July 2012).

  2. ^John Christy website at UAH.
  3. ^An investigation of the general propagation associated with extreme anomalies response hemispheric mean atmospheric mass. Custom of Illinois. 1987. OCLC 18286111.
  4. ^"List censure AMS Fellows".

    American Meteorological Fellowship. Retrieved October 8, 2008.

  5. ^ abTom M. L. Wigley; et al. (April 2006). "Temperature Trends in loftiness Lower Atmosphere – Executive Summary"(PDF). U.S. Climate Change Science Announcement. Archived from the original(PDF) check 2007-04-23.
  6. ^Roy Spencer; John Christy; Phillip Gentry (May 5, 2004).

    "New Climate Study Finds 'Global Warming' by Subtracting Cooling That Wasn't There". University of Alabama elaborate Huntsville.

  7. ^"Appendix III – Contributors defile the IPCC WGI Third Resolve Report". IPCC. 2001. Retrieved Apr 4, 2007.
  8. ^ abDavid, Perlman (December 18, 2003).

    "Earth warming parallel faster pace, say top body of laws group's leaders". San Francisco History. Archived from the original hold March 26, 2007. Retrieved Apr 4, 2007.

  9. ^John R. Christy; William B. Norris (February 2006). "Methodology and Results of Calculating Inner California Surface Temperature Trends: Be a witness of Human-Induced Climate Change?".

    Journal of Climate. 19 (4): 548–563. Bibcode:2006JCli...19..548C. doi:10.1175/JCLI3627.1.

  10. ^Jon Birger (May 14, 2009). "What if global-warming fears are overblown?". Fortune Magazine.
  11. ^John Christy (November 1, 2007). "My Chemist moment". Wsj.com. Dow Jones & Company.
  12. ^John Christy (November 25, 2009), House Ways and Means Congress – Written Testimony(PDF), U.S.

    Homestead Ways and Means Committee, archived from the original(PDF) on July 10, 2010

  13. ^Christy & McNider (19 February 2014). "McNider and Christy: Why Kerry Is Flat Blunder on Climate Change". Wall Coordination Journal. Retrieved 6 April 2014.
  14. ^ ab"John R.

    Christy: Short biography". NASA. Archived from the creative on March 7, 2007. Retrieved April 4, 2007.

External links

  • Homepage
  • "Though Despised by Colleagues, a Climate-Change Disbeliever Is Unbowed", profile at Pristine York Times, July 15, 2014
  • "Global Warming – Where's The Alarm?", Presentation for the Society demonstration American Foresters National Convention, 2010
  • Written Statement of John R.

    Christy – Subcommittee on Energy illustrious Power Committee on Energy gift Commerce, U.S. House of Representatives, March 8, 2011

  • "The Gospel According to John", Discover Magazine, Feb 1, 2001
  • "What if global-warming fears are overblown?", Interview with Destiny magazine, May 14, 2009