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Freshet

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287: 432: 389: 85:. Late spring melts allow for faster flooding; this is because the relatively longer days and higher solar angle allow for average melting temperatures to be reached quickly, causing snow to melt rapidly. Snowpacks at higher altitudes and in mountainous areas remain cold and tend to melt over a longer period of time and thus do not contribute to major flooding. Serious flooding from freshets in southern US states are more often related to rain storms of large 36: 20: 1322: 476:
and have been found to recover even when their habitat has been diminished by physical disturbances. The freshets in winter or early spring cause rapid flooding. The water abundance due to the melting of snow cannot easily infiltrate the frozen surface and run into nearby rivers, in this study the Ohashi River. Many of the organisms in this river have evolved to overcome the effects of the freshets
367:, water entering streams comes from deep in the soil where carbon contents are lower due to microbial digestion. During a freshet, water is more likely to run overland, where it dissolves the abundant, less degraded carbon present in the uppermost soil layers before entering streams. High dissolved organic carbon (DOC) levels lead to a decrease in the 424:. However, due to the low population this flood had a minor impact compared to the second largest flood in 1948, which had a peak discharge of 15,200 cubic metres per second (540,000 cu ft/s) and a peak height of 10.97 metres (36.0 ft) at Hope, BC. The 1948 flood caused extensive damage in the lower 346:, are highly responsive to freshets. In low flows present at the end of freshets, fish are more likely to ascend streams (move upstream). During high flows at the peak of a freshet, fish are more likely to descend streams. There are some species of fish that are less effected from freshets than others. Goby 400:
Flood was the result of an exceptionally large freshet fed by large snow accumulations which melted due to rapidly warming temperatures, producing large volumes of meltwater which inundated the frozen ground. At the peak of the flood, the Red River reached a depth of 16.46 metres (54.0 ft) and a
259:, heavy rains, or a combination of the two. Specifically, freshets occur when this water enters streams and results in flooding and high flow conditions. When freshets occur in the winter or early spring, the frozen ground can contribute to rapid flooding. This is because the meltwaters cannot easily 475:
In southwestern Japan the Ohashi River runs between two brackish-water lagoons. In this river Ammonia "beccarii" forma 1 (a benthic foraminiferan) has been found to colonize these waters depending on seasonal changes in the ecosystem. These organisms have been studied prior and post freshet events,
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Freshets may cause catastrophic changes to society, specifically in the economy and agriculture of populated environments. The floods caused by high waters from the rivers have been documented to destroy historical monuments, destroy ecosystems as well as pose a great threat to any life living near
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ssp for example, show similar patterns of migration and recover in population abundance and distribution after/during freshet conditions. The benthic-estuarine species seem to better cope with freshets, some have even showed an attraction effect due to the extent of estuarine cues. Some species are
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Artificial freshets have also been correlated with changes in migration patterns of adult Atlantic salmon. A study was conducted in southern Norway which showed significant alterations in migration distances. Comparing the data from pre-freshet, during freshet, and post-freshet the mean migration
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A controlled release of extra water into a river from a dam or other impounding structure, in additional to normal compensation flows, intended to simulate high flow events which would normally occur naturally if the river was not impounded. They are designed to aid fish
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affected by the consequences of freshets more than others. This is due to multiple factors, some include, but not limited to: differentiation in species biological anatomy, previous migration patterns, mating seasons, and feeding habits.
283:, the timing of freshets is critical. In the Fraser River Basin, the annual freshet was observed 10 days earlier in 2006 compared to 1949. In these areas, earlier freshets can result in low flow conditions later in the summer or fall. 371:
of the stream by enhancing heterotrophic microbial growth. Freshets have also been linked to compressing salinity gradients, increasing turbidity, and in the most intense conditions of freshets they have decreased oxygen levels.
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in Chesapeake Bay. At the peak of the flood on June 24, 1972, the instantaneous peak flow was greater than 32,000 cubic metres per second (1,100,000 cu ft/s), and at the mouth of the river, the concentration of
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Freshets may also occur due to rainfall events. Significant rainfall events can saturate the ground and lead to rapid inundation of streams, as well as contributing to snowmelt by delivering energy to snowpacks through
81:. Freshets can occur with differing strength and duration depending upon the depth of the snowpack and the local average rates of warming temperatures. Deeper snowpacks which melt quickly can result in more severe 380:
the freshet event, including human life. The research of predicting the changes of water levels due to freshets have become a large topic in the scientific community due to prior and future catastrophic events.
271:, given that they reach adequate melting temperatures. When melting temperatures are reached quickly and snowmelt is rapid, flooding can be more intense. In areas where freshets dominate the 335:
conditions, smaller freshets contribute less runoff and result in lower nutrient inputs to lakes and rivers. In these conditions, fewer positive ecological indicator species are present.
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experiences yearly freshets fed by snowmelt in the spring and early summer. The largest freshet ever experienced in the Fraser River occurred in 1894 and resulted in an estimated peak
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Neville, Lisa; Gammon, Paul; Patterson, Timothy; Swindles, Graeme (May 2015). "Climate Cycles Drive Aquatic Ecologic Changes in the Fort McMurray Region of Northern Alberta, Canada".
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In the western part of the continent, freshets occur throughout the generally much higher elevations of the various west coast mountain ranges that extend southward down from
1097:"Seasonal hydrology drives rapid shifts in the flux and composition of dissolved and particulate organic carbon and major and trace ions in the Fraser River, Canada" 286: 1239: 1095:
Voss, B.M.; Peucker-Ehrenbrink, B.; Eglinton, T.I.; Spencer, R.G.M.; Bulygina, E.; Galy, V.; Lamborg, C.H.; Ganguli, P.M.; Montluçon, D.B. (2015).
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Pomeroy, John; Fang, Xing; Ellis, Chad; Guan, May (June 2011). "Sensitivity of Snowmelt Hydrology on Mountain Slopes to Forest Cover Disturbance".
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of 4,000 cubic metres per second (140,000 cu ft/s). This event has been referred to as “the flood of the century” in the areas impacted.
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and followed in Thomas Sheridan's dictionary, but this might have been a misinterpretation on Johnson's part, and it is at best not a common usage.
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Takata, Hiroyuki (September 1, 2010). "Life history of Ammonia "beccarii" forma 1 on hard substrate in the Ohashi River, southwestern Japan".
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the frozen surface and instead run overland into rivers and streams, leading to a rapid flooding response. Deeper snow packs with large
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Thorstad, Eva B.; Heggberget, Tor G. (1998). "Migration of adult Atlantic salmon (Salmo salar); the effects of artificial freshets".
669:"The Response of River-resident Fish to Reservoir Freshet Releases of Varying Profiles Intended to Facilitate a Spawning Migration" 636:
A Complete Dictionary of the English Language, Both with Regard to Sound and Meaning ...: To which is Prefixed a Prosodial Grammar
1222: 981:"Effects of freshet events on early life stages of fish and macroinvertebrates in a highly turbid estuary of Iberian Peninsula" 1274: 238: 1201: 573: 541: 1257:
Schubel, Jerry R. (1974). "Effects of Tropical Storm Agnes on the Suspended Solids of the Northern Chesapeake Bay".
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The magnitude of freshets depends on snow accumulation and temperature. Smaller freshets have been associated with
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Shook, Kevin; Pomeroy, John (2012). "Changes in the hydrological character of rainfall on the Canadian prairies".
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of 17,000 cubic metres per second (600,000 cu ft/s) and a peak height of 11.75 metres (38.5 ft) at
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A spring freshet can sometimes last several weeks on large river systems, resulting in significant inundation of
907:"Tropical storms in Central America and the Caribbean: characteristic rainfall and forecasting of flash floods" 392:
Panorama from the top of a bridge, showing the true extent of the recent overland flooding south of Winnipeg.
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An example of usage of the term "freshet" is shown in the text on a historic marker at Durgin Bridge near
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conditions, where the milder conditions lead to lower snow accumulations. The opposite is true under
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Kang, Do Hyuk; Gao, Huilin; Shi, John Xiaogang; Islam, Siraj ul; Dery, Stephen J (January 2016).
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are capable of delivering larger quantities of water to rivers and streams, compared to smaller
207:, a spring thaw event is generally a more incremental process, depending upon local climate and 421: 651: 634: 617: 1146:
Vasil'ev, O.F. (2012). "Designing systems of operational freshet and high water prediction".
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conditions with stronger freshets, higher runoff, and high nutrient inputs, more positive
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to lesser snow packs. Tropically induced rainfall influenced quick melts can also affect
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conditions. Runoff from freshets is a major contributor of nutrients to lakes. In
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Freshets are the result of the mass delivery of water to the landscape, either by
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resulting from heavy rain or a spring thaw. Whereas heavy rain often causes a
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10.1002/(SICI)1099-1085(19971030)11:13<1725::AID-HYP601>3.0.CO;2-P
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to latitudes as far north as southern Canada, so long as the generally colder
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Flood Mitigation of the Red River Floodplain, Grand Forks, North Dakota
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Shook, Kevin; Gray, D.M. (1997). "Snowmelt resulting from advection".
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The New shorter Oxford English dictionary on historical principles
19: 679:(6). Hull International Fisheries Institute, University of Hull. 376:
distances per hour of the salmon showed significant differences.
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A freshet on the Ocmulgee river, Macon, GA, United States c. 1876
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Meyer, J.L. (1994). "The microbial loop in flowing waters".
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A small stream of fresh water, irrespective of its outflow.
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event on rivers resulting from snow and river ice melting.
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10.1577/1548-8659(1945)75[257:FAF]2.0.CO;2
974: 972: 713: 588: 555: 553: 1020: 561: 359:Freshets are often associated with high levels of 1261:. Marine Science. Vol. 4. pp. 113–132. 969: 1343: 550: 459:experienced a considerably large freshet due to 16:High water levels caused by melting snow and ice 769: 716:University of Saskatchewan Centre for Hydrology 632: 951:Transactions of the American Fisheries Society 729:Curry, Charles L.; Zwiers, Francis W. (2018). 649: 615: 582: 536:. Kent State University Press. pp. xvii. 472:was greater than 10,000 milligrams per liter. 1240:"Flooding events in Canada: British Columbia" 1016: 1014: 559: 1145: 826: 533:A Photo Album of Ohio's Canal Era, 1825–1913 435:Aerial view of the southern entrance to the 116:northward movement of low pressure systems. 1228:. BC Ministry of Environment. October 2008. 728: 667:Baker, N G; et al. (29 January 2020). 626: 529: 1011: 609: 1148:Herald of the Russian Academy of Sciences 1130: 1120: 869: 803: 754: 643: 589:Bonnier Corporation (January–June 1907). 428:and cost 20 million dollars at the time. 354: 192:The term can also refer to the following: 944: 430: 387: 285: 34: 18: 1256: 1180: 1344: 1289: 904: 463:, resulting in flooding and increased 299:. In the tropics, tropical storms and 1217: 1215: 1043: 925: 923: 666: 619:A Dictionnary of the English Language 978: 914:Proceedings of the Hamburg Symposium 239:A Dictionary of the English Language 232:A pool of fresh water, according to 53:is most commonly used to describe a 985:Estuarine Coastal and Shelf Science 735:Hydrology and Earth System Sciences 13: 1212: 1199: 920: 14: 1373: 1314: 1292:Fundamental and Applied Limnology 123:, annual freshets occur from the 1320: 1304:10.1127/1863-9135/2010/0178-0081 1181:Heidorn, Keith (April 1, 2011). 945:Huntsman, A. G. (January 1948). 178:even into the northern parts of 130:ranging along both sides of the 1283: 1250: 1232: 1193: 1174: 1139: 1088: 1037: 938: 898: 863: 820: 763: 722: 979:Miro, JM (December 23, 2023). 707: 660: 523: 498: 437:w:Chesapeake Bay Bridge-Tunnel 363:in streams and rivers. During 361:dissolved organic carbon (DOC) 134:then down through the heavily 64: 1: 491: 222:, usually flowing through an 905:Arenas, Andres Diaz (1983). 597:. Bonnier Corporation: 68–. 303:can lead to freshet events. 265:snow water equivalents (SWE) 214:A stream, river or flood of 23:Freshet on Ouareau River in 7: 1267:10.1007/978-1-4684-8529-5_8 595:The Popular Science Monthly 510:Alberta WaterPortal Society 479: 119:In the eastern part of the 10: 1378: 1183:"The 1997 Red River Flood" 1005:10.1016/j.ecss.2023.108559 639:. C. Dilly. pp. 286–. 383: 306: 1259:Suspended Solids in Water 1168:10.1134/S1019331612020050 1084:– via SpringerLink. 816:– via ResearchGate. 756:10.5194/hess-22-2285-2018 250: 673:Water Resources Research 653:New-England and New-York 633:Thomas Sheridan (1789). 369:net primary productivity 338:Migratory fish, such as 100:, to add their powerful 1122:10.5194/bg-12-5597-2015 1031:10.1023/a:1017035507856 650:Timothy Dwight (1822). 616:Samuel Johnson (1773). 218:which empties into the 41:Sandwich, New Hampshire 1202:"1997 Red River Flood" 872:Hydrological Processes 829:Hydrological Processes 568:. Oxford : Clarendon. 560:Brown, Lesley (1993). 448: 393: 355:Biogeochemical Impacts 291: 44: 32: 434: 391: 289: 77:melts in the river's 38: 22: 1329:at Wikimedia Commons 1244:Government of Canada 1025:. 371/372: 339–346. 693:10.1029/2018WR024196 530:Gieck, Jack (1988). 461:Tropical Storm Agnes 325:ecological indicator 92:rolling in from the 1246:. December 2, 2010. 1160:2012HRuAS..82..129V 1132:20.500.11850/105179 1113:2015BGeo...12.5597V 1058:1994MicEc..28..195M 997:2023ECSS..29508559M 947:"Freshets and Fish" 884:1997HyPr...11.1725S 841:2012HyPr...26.1752S 788:2016NatSR...619299K 747:2018HESS...22.2285C 685:2020WRR....5624196B 506:"What is Snowmelt?" 439:. The water is the 273:hydrological regime 1187:The Weather Doctor 1066:10.1007/BF00166808 932:GeoConvention 2015 776:Scientific Reports 449: 394: 292: 45: 33: 1325:Media related to 1276:978-1-4684-8531-8 1107:(19): 5597–5618. 1046:Microbial Ecology 878:(13): 1725–1736. 835:(12): 1752–1766. 796:10.1038/srep19299 591:"Popular Science" 455:which flows into 453:Susquehanna River 1369: 1324: 1308: 1307: 1287: 1281: 1280: 1254: 1248: 1247: 1236: 1230: 1229: 1227: 1219: 1210: 1209: 1197: 1191: 1190: 1178: 1172: 1171: 1143: 1137: 1136: 1134: 1124: 1092: 1086: 1085: 1041: 1035: 1034: 1018: 1009: 1008: 976: 967: 966: 942: 936: 935: 927: 918: 917: 911: 902: 896: 895: 867: 861: 860: 849:10.1002/hyp.9383 824: 818: 817: 807: 767: 761: 760: 758: 741:(4): 2285–2309. 726: 720: 719: 711: 705: 704: 664: 658: 657: 656:. pp. 286–. 647: 641: 640: 630: 624: 623: 622:. pp. 196–. 613: 607: 606: 586: 580: 579: 567: 557: 548: 547: 527: 521: 520: 518: 516: 502: 470:suspended solids 447:is to the right. 445:w:Virginia Beach 441:w:Chesapeake Bay 414:British Columbia 398:Red River Valley 281:British Columbia 102:heating capacity 1377: 1376: 1372: 1371: 1370: 1368: 1367: 1366: 1357:Bodies of water 1342: 1341: 1317: 1312: 1311: 1288: 1284: 1277: 1255: 1251: 1238: 1237: 1233: 1225: 1221: 1220: 1213: 1198: 1194: 1179: 1175: 1144: 1140: 1093: 1089: 1042: 1038: 1019: 1012: 977: 970: 943: 939: 928: 921: 909: 903: 899: 868: 864: 825: 821: 768: 764: 727: 723: 712: 708: 665: 661: 648: 644: 631: 627: 614: 610: 587: 583: 576: 558: 551: 544: 528: 524: 514: 512: 504: 503: 499: 494: 482: 386: 357: 309: 253: 90:weather systems 67: 17: 12: 11: 5: 1375: 1365: 1364: 1359: 1354: 1340: 1339: 1330: 1316: 1315:External links 1313: 1310: 1309: 1282: 1275: 1249: 1231: 1211: 1200:Nelson, Mark. 1192: 1173: 1154:(2): 129–133. 1138: 1101:Biogeosciences 1087: 1052:(2): 195–199. 1036: 1010: 968: 937: 919: 897: 862: 819: 762: 721: 706: 659: 642: 625: 608: 581: 574: 549: 542: 522: 496: 495: 493: 490: 489: 488: 481: 478: 457:Chesapeake Bay 385: 382: 356: 353: 348:Pomatoschistus 308: 305: 275:, such as the 252: 249: 248: 247: 243: 234:Samuel Johnson 230: 227: 212: 196: 195: 165:North Carolina 161:barrier ranges 151:from Northern 142:mountain chain 98:Gulf of Mexico 94:South Atlantic 66: 63: 15: 9: 6: 4: 3: 2: 1374: 1363: 1360: 1358: 1355: 1353: 1350: 1349: 1347: 1338: 1334: 1331: 1328: 1323: 1319: 1318: 1305: 1301: 1297: 1293: 1286: 1278: 1272: 1268: 1264: 1260: 1253: 1245: 1241: 1235: 1224: 1218: 1216: 1207: 1203: 1196: 1188: 1184: 1177: 1169: 1165: 1161: 1157: 1153: 1149: 1142: 1133: 1128: 1123: 1118: 1114: 1110: 1106: 1102: 1098: 1091: 1083: 1079: 1075: 1071: 1067: 1063: 1059: 1055: 1051: 1047: 1040: 1032: 1028: 1024: 1023:Hydrobiologia 1017: 1015: 1006: 1002: 998: 994: 990: 986: 982: 975: 973: 964: 960: 956: 952: 948: 941: 933: 926: 924: 915: 908: 901: 893: 889: 885: 881: 877: 873: 866: 858: 854: 850: 846: 842: 838: 834: 830: 823: 815: 811: 806: 801: 797: 793: 789: 785: 781: 777: 773: 766: 757: 752: 748: 744: 740: 736: 732: 725: 717: 710: 702: 698: 694: 690: 686: 682: 678: 674: 670: 663: 655: 654: 646: 638: 637: 629: 621: 620: 612: 604: 600: 596: 592: 585: 577: 575:0-19-861271-0 571: 566: 565: 556: 554: 545: 543:9780873383530 539: 535: 534: 526: 511: 507: 501: 497: 487: 484: 483: 477: 473: 471: 466: 465:sedimentation 462: 458: 454: 451:In 1972, the 446: 442: 438: 433: 429: 427: 426:Fraser Valley 423: 419: 415: 411: 406: 404: 399: 390: 381: 377: 373: 370: 366: 362: 352: 349: 345: 341: 336: 334: 330: 326: 322: 318: 314: 304: 302: 298: 288: 284: 282: 278: 274: 270: 266: 262: 258: 244: 241: 240: 235: 231: 228: 225: 221: 217: 213: 210: 206: 202: 198: 197: 194: 193: 189: 188: 187: 185: 181: 177: 172: 170: 166: 162: 158: 157:New Brunswick 154: 150: 147: 143: 140: 137: 133: 129: 126: 122: 117: 115: 111: 107: 103: 99: 95: 91: 88: 84: 80: 76: 72: 62: 60: 56: 52: 51: 42: 37: 30: 26: 21: 1298:(1): 81–88. 1295: 1291: 1285: 1258: 1252: 1243: 1234: 1205: 1195: 1186: 1176: 1151: 1147: 1141: 1104: 1100: 1090: 1049: 1045: 1039: 1022: 988: 984: 954: 950: 940: 931: 913: 900: 875: 871: 865: 832: 828: 822: 779: 775: 765: 738: 734: 724: 715: 709: 676: 672: 662: 652: 645: 635: 628: 618: 611: 594: 584: 563: 532: 525: 513:. Retrieved 509: 500: 474: 450: 410:Fraser River 407: 395: 378: 374: 358: 347: 337: 310: 293: 277:Fraser River 254: 237: 191: 190: 173: 146:St. Lawrence 118: 71:flood plains 68: 57:, an annual 49: 48: 46: 1337:Answers.com 957:: 257–266. 515:February 8, 216:fresh water 205:flash flood 139:Appalachian 132:Great Lakes 65:Description 1346:Categories 492:References 365:base flows 329:Arcellacea 261:infiltrate 246:migration. 209:topography 184:New Mexico 106:snow cover 59:high water 1362:Hydrology 1333:"Freshet" 782:: 19299. 701:213488911 603:0161-7370 418:discharge 403:discharge 396:The 1997 327:species ( 297:advection 279:Basin in 269:snowpacks 169:Tennessee 121:continent 79:watershed 47:The term 1074:24186445 857:52266131 814:26813797 480:See also 422:Hope, BC 401:maximum 301:cyclones 257:snowmelt 136:forested 125:Canadian 114:blocking 110:air mass 87:tropical 83:flooding 75:snowpack 55:snowmelt 31:, Canada 1327:Freshet 1156:Bibcode 1109:Bibcode 1082:2938142 1054:Bibcode 993:Bibcode 880:Bibcode 837:Bibcode 805:4728390 784:Bibcode 743:Bibcode 681:Bibcode 384:History 333:El Niño 321:La Niña 317:La Niña 313:El Niño 307:Ecology 224:estuary 180:Arizona 112:is not 73:as the 50:freshet 1273:  1080:  1072:  855:  812:  802:  699:  601:  572:  540:  340:salmon 251:Causes 176:Alaska 149:valley 29:Quebec 25:Rawdon 1352:Flood 1226:(PDF) 1078:S2CID 910:(PDF) 853:S2CID 697:S2CID 344:trout 220:ocean 201:flood 159:into 153:Maine 128:Taiga 1271:ISBN 1070:PMID 810:PMID 599:ISSN 570:ISBN 538:ISBN 517:2019 486:WajĹ« 443:and 408:The 342:and 182:and 167:and 155:and 144:and 1335:at 1300:doi 1296:178 1263:doi 1164:doi 1127:hdl 1117:doi 1062:doi 1027:doi 1001:doi 989:295 959:doi 888:doi 845:doi 800:PMC 792:doi 751:doi 689:doi 412:in 236:'s 163:in 96:or 1348:: 1294:. 1269:. 1242:. 1214:^ 1204:. 1185:. 1162:. 1152:82 1150:. 1125:. 1115:. 1105:12 1103:. 1099:. 1076:. 1068:. 1060:. 1050:28 1048:. 1013:^ 999:. 991:. 987:. 983:. 971:^ 955:75 953:. 949:. 922:^ 912:. 886:. 876:11 874:. 851:. 843:. 833:26 831:. 808:. 798:. 790:. 778:. 774:. 749:. 739:22 737:. 733:. 695:. 687:. 677:56 675:. 671:. 593:. 552:^ 508:. 199:A 186:. 171:. 27:, 1306:. 1302:: 1279:. 1265:: 1208:. 1189:. 1170:. 1166:: 1158:: 1135:. 1129:: 1119:: 1111:: 1064:: 1056:: 1033:. 1029:: 1007:. 1003:: 995:: 965:. 961:: 934:. 916:. 894:. 890:: 882:: 859:. 847:: 839:: 794:: 786:: 780:6 759:. 753:: 745:: 718:. 703:. 691:: 683:: 605:. 578:. 546:. 519:. 226:. 211:. 43:.

Index


Rawdon
Quebec

Sandwich, New Hampshire
snowmelt
high water
flood plains
snowpack
watershed
flooding
tropical
weather systems
South Atlantic
Gulf of Mexico
heating capacity
snow cover
air mass
blocking
continent
Canadian
Taiga
Great Lakes
forested
Appalachian
mountain chain
St. Lawrence
valley
Maine
New Brunswick

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