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Recovery of a CTD (conductivity, temperature, depth) sensor at sea.
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Monitoring atmospheric chemistry using mass spectrometers built at Caltech.
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The Alvin submersible returns from a dive.
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Sampling for cosmogenic exposure dating, Kauai.

Scientists from a broad range of disciplines are collaborating at the Linde Center to generate a comprehensive understanding of our global environment—including the impacts of human activities on it. They investigate Earth's atmosphere, oceans, cryosphere, and biosphere and their mutual interactions, characterizing their present and past states through innovative measurements, developing models to describe their evolution, and synthesizing measurements and models to produce sound predictions of the future. Among the questions addressed at the Linde Center are:

  • How has Earth's climate varied in the past and how will it change in the future?
  • How does pollution affect air quality locally and far from its sources, and how does it affect cloud cover and climate change?
  • What happens to carbon dioxide after it enters the atmosphere?

The Linde Center is located within the unique Linde + Robinson Laboratory, likely the most energy-efficient laboratory building in the United States. The Linde + Robinson Laboratory and nearby buildings house state-of-the art laboratories for oceanography, atmospheric chemistry, biogeochemistry, environmental microbiology, and environmental chemistry and technology.

More about the Linde Center »

Featured Event

Event-contest

Solution to the Allusion Hidden in PERCEPTION

The Caltech Community has been stumped and, as a result, $1,000 has been added to the endowment for global environmental science. No one in the Caltech Community came forward within one year with the correct answer to the contest that was announced on January 24, 2012 by alumnus and Vice Chair of Caltech's Board of Trustees, Ronald Linde, at the dedication of Linde+Robinson Laboratory.

Several members of the Caltech community submitted very insightful entries that correctly identified hidden allusions contained in PERCEPTION, and several of the clues were correctly identified. None of the entrants, however, identified the specific allusion that matches all of the clues, as required by the contest rules. Below is the solution:

Solution: The number of parallel hexahedron faces (12) in PERCEPTION equals the number of rare earth elements discovered since Robinson Laboratory was built in 1932. The number of different clues also is 12.

Details: Clues contained in the 'Statement of Clues' are identified below by underlining, with explanations (where deemed helpful) in brackets and red type.

STATEMENT OF CLUES

History [of science and of Caltech] and Mystery: A Number [12] of Clues for a Test in PERCEPTION

If Sherlock Holmes, the fictional master of perception, had been a member of the Caltech [Caltech's history] community, he would not have needed a dozen [12 parallel faces/12 discoveries] clues to discover the allusion. At the time of discovery he characteristically would have exclaimed, "Elementary [pertaining to elements], my dear Watson!"

Science has progressed enormously since Robinson Laboratory was built. Now the Global Environmental Science initiative will provide a rare opportunity for Caltech's [same clue as above] divisions, working in concert and in parallel, to address an impending crisis that faces our planet [Earth].

Thank you for everyone's participation and interest. For the Artist's Statement, the original Contest and two additional clues announced late in 2012, please click here or visit http://lindecenter.caltech.edu/contest

Recent Publications

Limaye, Ajay B. S. and Lamb, Michael P. (2014) Numerical simulations of bedrock valley evolution by meandering rivers with variable bank material. Journal of Geophysical Research F, 119 (4). pp. 927-950. ISSN 0148-0227.

Mertens, Laura A. and Okumura, Mitchio and Sander, Stanley P. (2014) Temperature dependent branching ratios of HONO_2 and HOONO from HO_x and NO_x cross reactions found using pulsed cavity-​ringdown spectroscopy. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA.

Thompson, Andrew F. and Naveira Garabato, Alberto C. (2014) Equilibration of the Antarctic Circumpolar Current by Standing Meanders. Journal of Physical Oceanography, 44 (7). pp. 1811-1828. ISSN 0022-3670.

Glasser, Nathaniel R. and Kern, Suzanne E. and Newman, Dianne K. (2014) Phenazine redox cycling enhances anaerobic survival in Pseudomonas aeruginosa by facilitating generation of ATP and a proton-motive force. Molecular Microbiology . ISSN 0950-382X.

Yang, Da and Ingersoll, Andrew P. (2014) A theory of the MJO horizontal scale. Geophysical Research Letters, 41 (3). pp. 1059-1064. ISSN 0094-8276.

Fallon, S. J. and Thresher, R. E. and Adkins, J. (2014) Age and growth of the cold-water scleractinian Solenosmilia variabilis and its reef on SW Pacific seamounts. Coral Reefs, 33 (1). pp. 31-38. ISSN 0722-4028.

Colussi, Agustín J. and Enami, Shinichi and Hoffmann, Michael R. (2014) Working hypothesis on the mechanism of the synergic adverse effects of ambient ozone and PM2.5 particulates. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA.

Ingersoll, Andrew P. (2014) Second rock from the Sun. Nature, 512 (7514). p. 252. ISSN 0028-0836.

Wong, Michael L. and Yung, Yuk L. and Gladstone, G. Randall (2014) Pluto’s implications for a Snowball Titan. Icarus . ISSN 0019-1035. (In Press)

Su, Zhan and Stewart, Andrew L. and Thompson, Andrew F. (2014) An Idealized Model of Weddell Gyre Export Variability. Journal of Physical Oceanography, 44 (6). pp. 1671-1688. ISSN 0022-3670.

Liu, Junjun and Schneider, Tapio and Fletcher, Leigh N. (2014) Constraining the depth of Saturn’s zonal winds by measuring thermal and gravitational signals. Icarus, 239 . pp. 260-272. ISSN 0019-1035.

Smarte, Matthew D. and Dodson, Leah G. and Okumura, Mitchio (2014) Cavity ringdown spectroscopy of chlorine-​substituted peroxy radicals: Reaction kinetics with nitric oxide. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA.

Schneider, Tapio and Bischoff, Tobias and Haug, Gerald H. (2014) Migrations and dynamics of the intertropical convergence zone. Nature, 513 (7516). pp. 45-53. ISSN 0028-0836.

Kürten, Andreas and Flagan, Richard C. and Seinfeld, John H. (2014) Neutral molecular cluster formation of sulfuric acid–dimethylamine observed in real time under atmospheric conditions. Proceedings of the National Academy of Sciences of the United States of America . ISSN 0027-8424.

Flagan, Richard C. (2014) Continuous-Flow Differential Mobility Analysis of Nanoparticles and Biomolecules. Annual Review of Chemical and Biomolecular Engineering, 5 . ISSN 1947-5438.

Miller, Madeline D. and Adkins, Jess F. and Hodell, David A. (2014) Rhizon sampler alteration of deep ocean sediment interstitial water samples, as indicated by chloride concentration and oxygen and hydrogen isotopes. Geochemistry Geophysics Geosystems, 15 (6). pp. 2401-2413. ISSN 1525‐2027.

Bischoff, Tobias and Schneider, Tapio (2014) Energetic Constraints on the Position of the Intertropical Convergence Zone. Journal of Climate, 27 (13). pp. 4937-4951. ISSN 0894-8755.

Hoffmann, Michael R. (2014) PV-​powered electrochemical wastewater treatment system: Kinetics and mechanisms. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA.

Enami, Shinichi and Hoffmann, Michael R. and Colussi, Agustín J. (2014) In Situ Mass Spectrometric Detection of Interfacial Intermediates in the Oxidation of RCOOH(aq) by Gas-Phase OH-Radicals. Journal of Physical Chemistry A, 118 (23). pp. 4130-4137. ISSN 1089-5639.

Hofmann, Amy E. and Baker, Michael B. and Eiler, John M. (2014) Sub-micron-scale trace-element distributions in natural zircons of known provenance: implications for Ti-in-zircon thermometry. Contributions to Mineralogy and Petrology, 168 (3). Art. No. 1057. ISSN 0010-7999.

Browse all publications »

Contact

Linde Center for Global Environmental Science
California Institute of Technology
1200 E. California Blvd., MC 131-24
Pasadena, CA 91125
Email: lindecenter@caltech.edu
Phone: (626) 395-8731


Background image: NASA Goddard Space Flight Center
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