Continental patterns of submarine groundwater discharge reveal coastal vulnerabilities
Submarine groundwater discharge (SGD) delivers water and dissolved chemicals from continents to oceans, and its spatial distribution affects coastal water quality. Unlike rivers, SGD is broadly distributed and relatively difficult to measure, especially at continental scales. We present spatially re...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2016-08, Vol.353 (6300), p.705-707 |
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| creator | Sawyer, Audrey H. David, Cédric H. Famiglietti, James S. |
| description | Submarine groundwater discharge (SGD) delivers water and dissolved chemicals from continents to oceans, and its spatial distribution affects coastal water quality. Unlike rivers, SGD is broadly distributed and relatively difficult to measure, especially at continental scales. We present spatially resolved estimates of fresh (land-derived) SGD for the contiguous United States, based on historical climate records and high-resolution hydrographic data. Climate controls regional patterns in fresh SGD, while coastal drainage geometry imparts strong local variability. Because the recharge zones that contribute fresh SGD are densely populated, the quality and quantity of fresh SGD are both vulnerable to anthropogenic disturbance. Our analysis unveils hot spots for contaminant discharge to marine waters and saltwater intrusion into coastal aquifers. |
| doi_str_mv | 10.1126/science.aag1058 |
| format | Article |
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Our analysis unveils hot spots for contaminant discharge to marine waters and saltwater intrusion into coastal aquifers.</description><subject>Climate</subject><subject>Coastal environments</subject><subject>Coastal water</subject><subject>Coastal zone management</subject><subject>Contaminants</subject><subject>Discharge</subject><subject>Freshwater</subject><subject>Groundwater</subject><subject>Oceans</subject><subject>Rivers</subject><subject>Submarines</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNkTtPwzAURi0EoqUwM4EisbCk9TvxiCpeUiUWYI1c56akSu1iJ0X8exw1gMTE5OE739X1PQidEzwlhMpZMDVYA1OtVwSL_ACNCVYiVRSzQzTGmMk0x5kYoZMQ1hjHTLFjNKIZV5Rncoxe5862tQXb6ibZ6rYFb0PiqiR0y432MUlW3nW2_NAxSso6mDftV5B42EGsGKdDX911jQWvl3VTtzWEU3RU6SbA2fBO0Mvd7fP8IV083T_ObxapFpy1KZSy4twwklPJNcMUzJIRQhgxJSvBCMYYUAHalCoXiiuBdQRKXuWGCyXYBF3v5269e-8gtMUmbghNoy24LhQkZ0JKSYn8B0pEhqVS_0IJVZwLEtGrP-jadd7GP_cUzqXCol9ztqeMdyF4qIqtr-N5PwuCi15kMYgsBpGxcTnMjR6g_OG_zUXgYg-sQ-v8b84joBhnXyXXpNo</recordid><startdate>20160812</startdate><enddate>20160812</enddate><creator>Sawyer, Audrey H.</creator><creator>David, Cédric H.</creator><creator>Famiglietti, James S.</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>7QO</scope><scope>7TN</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>20160812</creationdate><title>Continental patterns of submarine groundwater discharge reveal coastal vulnerabilities</title><author>Sawyer, Audrey H. ; 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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Climate Coastal environments Coastal water Coastal zone management Contaminants Discharge Freshwater Groundwater Oceans Rivers Submarines |
| title | Continental patterns of submarine groundwater discharge reveal coastal vulnerabilities |
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