Lisa Welp is a biogeochemist who utilizes stable isotopes to understand how water and carbon dioxide are exchanged between the land and atmosphere. She is a professor at Purdue University in the department of Earth, Atmosphere, and Planetary Sciences.
Lisa Welp | |
|---|---|
| Born | United States |
| Alma mater | Ph.D California Institute of Technology |
| Scientific career | |
| Fields | Biogeochemistry |
| Institutions | Purdue University (2015-Present)
Assistant Project Scientist, Scripps Institution of Oceanography (2012-2014) Postdoctoral Scholar, Scripps Institution of Oceanography (2008-2012) Postdoctoral Research Associate & Lecturer, Yale University (2006-2008) |
Early life and education
editLisa Welp grew up in Ferdinand, Indiana. In high school, Welp participated in a program from Indiana University titled Exploration of Careers in Science where she spent eight weeks on campus doing research for the university. She focuses her research on isotopes of oxygen-18 of CO2 and water, and she did field work in Alaska and Siberia studying the carbon cycling in the forests. Welp attained her Master of Science from the California Institute of Technology in Pasadena California in Environmental Science and Engineering in 2002. She also received her PhD from California Institute of Technology in the same field in 2006. Dr. Welp's obtained her undergraduate degree in chemistry (minor in geology) in 2000 from Indiana University in Bloomington, Indiana.[1]
Career and research
editWelp is currently an assistant professor at Purdue University in Earth, Atmosphere, and Planetary Sciences. Prior to this, she was an Assistant Project Scientist (2012-2014) and Postdoctoral Scholar (2008-2012) at the Scripps Institution of Oceanography, UCSD and postdoctoral Research Associate & Lecturer at Yale University (2006-2008).[1]
Welp's areas of research concern stable isotope biogeochemistry, water and carbon dioxide exchange from land biosphere and the atmosphere, and boreal forest carbon cycling.[1] In 2008, she worked with the Keeling CO2 Lab[2] run by Ralph Keeling, son of Charles David Keeling (see also Keeling Curve). Her work at Scripps led to greater understanding of how ENSO (El Nino Southern Oscillation) affects global shifts in primary production, due to the redistribution of moisture. Welp quantified this using δ18O-CO2 (the isotopic shift in precipitation is transferred to respired CO2).[3] Her analysis suggested that global estimates of gross primary production (GPP) were too low and revised them upwards to 150–170 petagrams (1.5×1011–1.7×1011 t) carbon per year.[4]
Welp's collaborative research program has provided insight into how seasonal warming and drying affects ecosystem exchange of carbon in boreal forests,[5] how seasonal exchange of C between the atmosphere and biosphere has shifted over time,[6] potentially due to increased water use efficiency, proportional to the rise in atmospheric CO2[7]
Awards and fellowships
editReferences
edit- ^ a b c "Dr. Lisa Welp - Department of Earth, Atmospheric, and Planetary Sciences - Purdue University". www.eaps.purdue.edu. Retrieved 2018-09-18.
- ^ "Atmospheric Oxygen Research Group - Contact Us". bluemoon.ucsd.edu. Retrieved 2018-09-18.
- ^ Welp, Lisa (Fall 2011). "Interannual variability in the oxygen isotopes of atmospheric CO2 driven by El Niño" (PDF). Nature. 477 (7366): 579–582. Bibcode:2011Natur.477..579W. doi:10.1038/nature10421. PMID 21956330. S2CID 4426860.
- ^ "Global photosynthesis: New insight will help predict future climate change". ScienceDaily. Retrieved 2018-09-18.
- ^ Welp, L.R.; Randerson, J.T.; Liu, H.P. (2007-12-10). "The sensitivity of carbon fluxes to spring warming and summer drought depends on plant functional type in boreal forest ecosystems" (PDF). Agricultural and Forest Meteorology. 147 (3–4): 172–185. Bibcode:2007AgFM..147..172W. doi:10.1016/j.agrformet.2007.07.010. ISSN 0168-1923.
- ^ Graven, H. D.; Keeling, R. F.; Piper, S. C.; Patra, P. K.; Stephens, B. B.; Wofsy, S. C.; Welp, L. R.; Sweeney, C.; Tans, P. P. (2013-08-08). "Enhanced Seasonal Exchange of CO2 by Northern Ecosystems Since 1960". Science. 341 (6150): 1085–9. Bibcode:2013Sci...341.1085G. doi:10.1126/science.1239207. ISSN 0036-8075. PMID 23929948. S2CID 206549376.
- ^ Thiemens, Mark (August 10, 2017). "Atmospheric evidence for a global secular increase in carbon isotopic discrimination of land photosynthesis". Proceedings of the National Academy of Sciences. 114 (39): 10361–10366. Bibcode:2017PNAS..11410361K. doi:10.1073/pnas.1619240114. PMC 5625891. PMID 28893986.
- ^ a b c d Welp, Lisa. "Lisa Welp CV" (PDF).
- ^ "Fellowships: FY95 - FY15 Awards: Full List". cfpub.epa.gov. 2018.
External links
edit- Lisa Welp publications indexed by Google Scholar
- Publications by Lisa Welp at ResearchGate