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Staff information

Chitra Sivaraman

Data Sciences
Software Engineer, Team Lead
Pacific Northwest National Laboratory
PO Box 999
MSIN: K7-22
Richland, WA 99352


Chitra Sivaraman is the Team Lead for the Data Integration group at PNNL that supports DOE's Atmospheric Radiation Measurement Program (ARM), EERE's Atmosphere to Electron (A2e) Initiative and EERE's LightMAT DataHUB.

The Data Integration group writes software to collect, process and apply quality checks for data collected from 360+ instruments from 3 permanent sites and 3 mobile facilities. The group engages with instrument mentors, translators, external developers, the Data Quality Office, and ARM Data Center staff to ensure completeness in all steps required for ARM data production.

As manager, Chitra ensures tasks and projects have clear scope, schedule and resource requirements. She also ensures that projects are adequately planned, technically sound, risks are addressed and results are delivered on schedule.

Research Interests

  • Chitra's research interests are in the areas of scientific data management and development of software products to fulfill unmet measurement needs and the representation of this data in models.

Education and Credentials

  • Stanford University, Stanford, CA
  • University of Illinois, Urbana-Champaign, IL

PNNL Publications


  • Lim K., L.D. Riihimaki, J.M. Comstock, B. Schmid, C. Sivaraman, Y. Shi, and G. McFarquhar. 2016. "Evalution of long-term surface-retrieved cloud-droplet number concentration with in situ aircraft observations." Journal of Geophysical Research. D. (Atmospheres) 121, no. 5:2318-2331. PNNL-SA-111765. doi:10.1002/2015JD024082
  • Stephan E.G., T.O. Elsethagen, L.K. Berg, M.C. Macduff, P.R. Paulson, W.J. Shaw, and C. Sivaraman, et al. 2016. "Semantic Catalog of Things, Services, and Data to Support a Wind Data Management Facility." Information Systems Frontiers 18, no. 4:679-691. PNNL-SA-100267. doi:10.1007/s10796-015-9546-5


  • Parworth C., J.D. Fast, F. Mei, T.R. Shippert, C. Sivaraman, A. Tilp, and T. Watson, et al. 2015. "Long-term Measurements of Submicrometer Aerosol Chemistry at the Southern Great Plains (SGP) Using an Aerosol Chemical Speciation Monitor (ACSM)." Atmospheric Environment 106. PNNL-SA-106218. doi:10.1016/j.atmosenv.2015.01.060


  • Sivaraman C., E.G. Stephan, M.C. Macduff, and C.D. Hagler. 2014. Data Archive and Portal Thrust Area Strategy Report. PNNL-23718. Richland, WA: Pacific Northwest National Laboratory.


  • Kassianov E.I., C.J. Flynn, A.S. Koontz, C. Sivaraman, and J.C. Barnard. 2013. "Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites." Atmosphere 4, no. 3:299-314. PNNL-SA-95655. doi:10.3390/atmos4030299
  • Stephan E.G., T.O. Elsethagen, A.S. Wynne, C. Sivaraman, M.C. Macduff, L.K. Berg, and W.J. Shaw. 2013. "A Linked Fusion of Things, Services, and Data to Support a Collaborative Data Management Facility." In 9th International Conference on Collaborative Computing: Networking, Applications and Worksharing (Collaboratecom 2013), October 20-23, 2013, Austin, Texas, 579-584. Austin, :ICST, the Institute for Computer science, Social Informatics and Telecommunications Engineering. PNNL-SA-98507. doi:10.4108/icst.collaboratecom.2013.254158
  • Thorsen T.J., Q. Fu, J.M. Comstock, C. Sivaraman, M.A. Vaughan, D. Winker, and D.D. Turner. 2013. "Macrophysical Properties of Tropical Cirrus Clouds from the CALIPSO Satellite and from Ground-based Micropulse and Raman Lidars." Journal of Geophysical Research. D. (Atmospheres) 118, no. 16:9209-9220. PNNL-SA-95509. doi:10.1002/jgrd.50691


  • Dupont J., M. Haeffelin, Y. Morille, J.M. Comstock, C.J. Flynn, C.N. Long, and C. Sivaraman, et al. 2011. "Cloud properties derived from two lidars over the ARM SGP site." Geophysical Research Letters 38. PNNL-SA-76764. doi:10.1029/2010GL046274
  • Paulson P.R., T.E. Carroll, C. Sivaraman, P.A. Neorr, S.D. Unwin, and S.S. Hossain. 2011. "Simplifying Probability Elicitation and Uncertainty Modeling in Bayesian Networks." In Proceedings of the 22nd Midwest Artificial Intelligence and Cognitive Science Conference (MAICS 2011), April 16-17, 2011, Cincinnati, OH, edited by S Visa, A Inoue and AL Ralescu, 114-119. Madison, Wisconsin:Omnipress. PNNL-SA-77781.


  • Newsom R.K., D.D. Turner, B. Mielke, M.F. Clayton, R. Ferrare, and C. Sivaraman. 2009. "Simultaneous analog and photon counting detection for Raman lidar." Applied Optics 48, no. 20:3903-3914. PNNL-SA-62493.


  • Whelan G., W.D. Millard, G.M. Gelston, T.P. Khangaonkar, M.A. Pelton, D.L. Strenge, and Z. Yang, et al. 2007. "Using FRAMES to Manage Environmental and Water Resources." In Proceedings of the World Environmental and Water Resources Congress 2007: Restoring our Natural Habitat, May 15-19, 2007, Tampa, Florida, USA, edited by Karen C. Kabbes. Reston, Virginia:American Society of Civil Engineers. PNNL-SA-53354. doi:10.1061/40927(243)130


  • Whelan G., W.D. Millard, G.M. Gelston, M.A. Pelton, Z. Yang, D.L. Strenge, and C. Lee, et al. 2006. Rapid Risk Assessment: FY05 Annual Summary Report. PNNL-15697. Richland, WA: Pacific Northwest National Laboratory.


  • Bower J.C., R.A. Burnett, R.J. Carter, T.R. Downing, B.J. Homer, N.A. Holter, and D.M. Johnson, et al. 2002. Federal Emergency Management Information System (FEMIS) System Administration Guide for FEMIS Version 1.5. PNNL-10610-Ver. 1.5. Richland, WA: Pacific Northwest National Laboratory.
  • Burnett R.A., R.J. Carter, T.R. Downing, B.J. Homer, N.A. Holter, D.M. Johnson, and R.L. Johnson, et al. 2002. Federal Emergency Management Information System (FEMIS) System Administration Guide Version 1.5.3. PNNL-10610 Ver. 1.5.3. Richland, WA: Pacific Northwest National Laboratory.

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