| Abstract: | Trends in rainfall-adjusted sulfate concentration were assessed for 5-yr subrecords of the 14.5-17 yr of monthly bulk-deposition data from five stations in New York by using the seasonal Kendall test. For the 5-yr subrecord from 1978 to 1982, the trends for the bulk deposition were similar to those for weekly wet-only deposition for adjacent stations of the National Atmospheric Deposition Program (NADP). The long-term trend at each of the bulk-precipitation sites was downward and statistically significant at P < 0.02, whereas 26% of the 69 subrecords had trends that were statistically significant only at P <0.2. Of these statistically significant subrecord trends, 10% were positive (opposite to the long-term trend). Furthermore, the slopes of the subrecord trends tended to be much steeper than those of the whole record. These 5-yr trends, consequently, are poor indicators of the trends that occur over much longer periods in the same record.Trends in rainfall-adjusted sulfate concentration were assessed for 5-yr subrecords of the 14. 5-17 yr of monthly bulk-deposition data from five stations in New York by using the seasonal Kendall test. For the 5-yr subrecord from 1978 to 1982, the trends for the bulk deposition were similar to those for weekly wet-only deposition for adjacent stations of the National Atmosheric Deposition Program (NADP). The long-term trend at each of the bulk-precipitation sites was downward and statistically significant at p less than 0. 02, whereas 26 percent of the 69 subrecords had trends that were statistically significant only at P less than 0. 2. Of these statistically significant subrecord trends, 10 percent were positive (opposite to the long-term trend). Furthermore, the slopes of the subrecord trends tended to be much steeper than those of the whole record. These 5-yr trends, consequently, are poor indicators of the trends that occur over much longer periods in the same record. |
| Genre: | Article |
| ProdID: | 70014719 |
| Citation Author: | Hirsch, R. M.; Peters, N. E. |
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| Citation End Page: | 1178 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Atmospheric Environment |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Short-term trends in sulfate deposition at selected bulk precipitation stations in New York; 1988; Article; Journal; Atmospheric Environment; Hirsch, R. M.; Peters, N. E. |
| Citation Start Page: | 1175 |
| Citation Volume: | 22 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Short-term trends in sulfate deposition at selected bulk precipitation stations in New York; 1988; Article; Journal; Atmospheric Environment; Hirsch, R. M.; Peters, N. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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