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The composition of precipitation in remote areas of the world
Abstract
The Global Precipitation Chemistry Project collects precipitation by event to determine composition and processes controlling it in five remote areas. Compositions (excluding sea‐salt) at St. Georges, Bermuda, were primarily controlled by anthropogenic processes; compositions and acidities at San Carlos, Venezuela, Katherine, Australia, Poker Flat, Alaska, and Amsterdam Island were controlled by unknown mixtures of natural or anthropogenic processes. Precipitation was acidic; average volume‐weighted pH values were 4.8 for Bermuda; 5.0, Alaska; 4.9, Amsterdam Island; 4.8, Australia; 4.8, Venezuela. Acidities at Bermuda and Alaska were from long‐range transport of sulfate aerosol; at Venezuela, Australia, and Amsterdam Island, from mixtures of weak organic and strong mineral acids, primarily H 2 SO 4. Relative proportions of weak to strong acids were largest at Venezuela and lowest at Amsterdam Island. Weak and strong acids were from mixtures of natural and anthropogenic processes. Once contributions from human activities were removed, the lower limit of natural contributions was probably ≥pH 5.
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Cited by
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Vitousek, P. M., Aber, J. D., Howarth, R. W., Likens, G. E., Matson, P. A., Schindler, D. W., Schlesinger, W. H., & Tilman, D. G. (1997) · Ecological Applications · doi:10.2307/2269431 · Cited by 561
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Metadata
- Authors
- Galloway, J. N., Likens, G. E., Keene, W. C., & Miller, J. M.
- Venue
- Journal of Geophysical Research: Oceans
- Publisher
- American Geophysical Union (AGU)
- Published
- 1982-10-20
- Volume
- 87
- Issue
- C11
- Pages
- 8771-8786
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W1976249801
- Cited by
- 752
- References
- 0
- FWCI
- 31.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- Galloway, J. N., Likens, G. E., Keene, W. C., & Miller, J. M. (1982). The composition of precipitation in remote areas of the world. Journal of Geophysical Research: Oceans. https://doi.org/10.1029/jc087ic11p08771
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