Knowledge (XXG)

Drift ice

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Drift ice can exert tremendous forces when rammed against structures, and can shear off rudders and propellers from ships and strong structures anchored to the shore, such as piers. These structures must be retractable or removable to avoid damage. Similarly, ships can get stuck between drift ice
204: 451:"Honda, Meiji, Koji Yamazaki, Hisashi Nakamura, Kensuke Takeuchi, 1999: Dynamic and Thermodynamic Characteristics of Atmospheric Response to Anomalous Sea-Ice Extent in the Sea of Okhotsk. J. Climate, 277: 262: 162:. Polar packs significantly change their size during seasonal changes of the year. Because of vast amounts of water added to or removed from the oceans and 240: 389: 431: 548: 538: 581: 496: 225: 512: 978: 529: 471: 450: 186: 733: 543: 83:, individual pieces of sea ice 20 metres (66 ft) or more across. Floes are classified according to size: 64:, hence its name. When drift ice is driven together into a large single mass (>70% coverage), it is called 553: 787: 56:
that is not attached to the shoreline or any other fixed object (shoals, grounded icebergs, etc.). Unlike
1225: 334: 216:, which in this picture became stuck in drift ice while towing a cargo ship in pack ice in the northern 1195: 1069: 328: 298: 69: 30: 1074: 211: 190: 307: â€“ Large piece of freshwater ice broken off a glacier or ice shelf and floating in open water 1177: 500: 436: 143: 127: 574: 476: 385: 1220: 953: 466: 379: 1188: 603: 533: 516: 246: 139: 117: 1158: 1148: 958: 316: 269: 254: 174: 159: 19: 331: â€“ Linear accumulation of ice blocks resulting from the convergence between floes 1214: 973: 925: 910: 778: 631: 626: 621: 301: â€“ Research stations built on the ice of the high latitudes of the Arctic Ocean 983: 895: 890: 885: 783: 753: 567: 521: 250: 155: 151: 60:, which is "fastened" to a fixed object, drift ice is carried along by winds and 1153: 1089: 1059: 943: 915: 905: 900: 838: 823: 808: 793: 717: 681: 178: 166:, the behavior of polar ice packs has a significant impact on global changes in 61: 1143: 1023: 1008: 968: 963: 843: 818: 768: 743: 712: 647: 217: 163: 111: 73: 813: 480: 1115: 1105: 1084: 1013: 858: 833: 748: 738: 707: 702: 667: 346: 310: 24: 509: 146:. The most important areas of pack ice are the polar ice packs formed from 1125: 1120: 1110: 1079: 1043: 1038: 1028: 880: 828: 803: 662: 657: 231: 147: 80: 57: 1135: 1033: 1003: 948: 938: 763: 697: 692: 677: 672: 652: 539:
Everything you ever wanted to know about sea ice but were afraid to ask
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Animation of the movement of sea ice, September 2003 through May 2004
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up to dozens of metres in thickness. These represent a challenge for
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LeppÀranta, M. 2011. The Drift of Sea Ice. Berlin: Springer-Verlag.
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10.1175/1520-0442(1999)012<3347:DATCOA>2.0.CO;2
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and offshore structures operating in cold oceans and seas.
91:– 100 metres (330 ft) to 500 metres (1,600 ft); 510:
Cryosphere Today : Current Arctic sea ice conditions
313: â€“ Ice pushed onshore due to water movements or wind 432:"A Port's Ice Is Thinning, and So Is Its Tourist Trade" 349: â€“ Ice formed on a lake and washed up on the shore 319: â€“ Fracture that opens up in an expanse of sea ice 559: 87:– 20 metres (66 ft) to 100 metres (330 ft); 189:. The Sea of Okhotsk is the southernmost area in the 185:, has become a tourist attraction, and is one of the 1134: 1098: 1052: 996: 924: 867: 726: 640: 614: 41:(right) in a hypothetical sea ice dynamics scenario 554:The Papers of Paul Gordienko on Ice and Ice Drifts 68:. Wind and currents can pile up that ice to form 325: â€“ Area of unfrozen sea within an ice pack 575: 8: 873: 582: 568: 560: 470: 384:. University of Alaska Press. p. 2. 343: â€“ Outcome of seawater as it freezes 103:– more than 10 kilometres (6.2 mi). 358: 200: 364: 362: 7: 1184: 527:Marine Modeling and Analysis Branch 465:. Journals.ametsoc.org: 3347. 1999. 16:Sea ice that is not attached to land 158:and the Antarctic ice pack of the 14: 193:where drift ice may be observed. 1194: 1183: 1173: 1172: 549:Atlas of Antarctic Sea Ice Drift 287:icebreaker in the Sea of Okhotsk 276: 261: 239: 224: 203: 138:The two major ice packs are the 522:Data source for sea ice picture 422:Environment Canada Ice Glossary 37:(left, along shoreline) versus 1: 154:: the Arctic ice pack of the 556:at Dartmouth College Library 505:American Practical Navigator 1242: 173:Seasonal ice drift in the 1167: 979:Short-track speed skating 876: 597: 177:by the northern coast of 126:Biosphere influence (see 378:Weeks, Willy F. (2010). 368:WMO Sea-Ice Nomenclature 187:100 Soundscapes of Japan 413:NSIDC All About Sea Ice 79:Drift ice consists of 42: 27: 499: : chapter from 335:Seabed gouging by ice 116:Climatic impact (see 33: 22: 329:Pressure ridge (ice) 299:Drifting ice station 249:of drift ice in the 1075:Iceman (occupation) 191:Northern Hemisphere 106:Drift ice affects: 627:Crystalline phases 532:2011-04-02 at the 515:2011-02-23 at the 501:Nathaniel Bowditch 459:Journal of Climate 437:The New York Times 144:Antarctic ice pack 128:Ecology of sea ice 43: 28: 1208: 1207: 1189:Wikimedia Commons 992: 991: 440:, March 14, 2006. 391:978-1-60223-101-6 268:Drift ice in the 123:Geological impact 1233: 1198: 1187: 1186: 1176: 1175: 874: 584: 577: 570: 561: 497:"Ice in the Sea" 485: 484: 474: 447: 441: 429: 423: 420: 414: 411: 405: 402: 396: 395: 375: 369: 366: 280: 265: 243: 228: 207: 1241: 1240: 1236: 1235: 1234: 1232: 1231: 1230: 1211: 1210: 1209: 1204: 1163: 1130: 1094: 1048: 988: 920: 869: 863: 734:Albedo feedback 722: 636: 622:Amorphous solid 610: 593: 588: 534:Wayback Machine 517:Wayback Machine 493: 488: 449: 448: 444: 430: 426: 421: 417: 412: 408: 403: 399: 392: 377: 376: 372: 367: 360: 356: 295: 288: 281: 272: 266: 257: 247:Satellite image 244: 235: 229: 220: 210:The icebreaker 208: 199: 150:in the Earth's 140:Arctic ice pack 118:Polar ice packs 17: 12: 11: 5: 1239: 1237: 1229: 1228: 1223: 1213: 1212: 1206: 1205: 1203: 1202: 1191: 1180: 1168: 1165: 1164: 1162: 1161: 1159:Snowball Earth 1156: 1151: 1149:Little Ice Age 1146: 1140: 1138: 1132: 1131: 1129: 1128: 1123: 1118: 1113: 1108: 1102: 1100: 1096: 1095: 1093: 1092: 1087: 1082: 1077: 1072: 1067: 1062: 1056: 1054: 1050: 1049: 1047: 1046: 1041: 1036: 1031: 1026: 1021: 1016: 1011: 1006: 1000: 998: 994: 993: 990: 989: 987: 986: 981: 976: 971: 966: 961: 959:Figure skating 956: 951: 946: 941: 936: 930: 928: 922: 921: 919: 918: 913: 908: 903: 898: 893: 888: 883: 877: 871: 865: 864: 862: 861: 856: 851: 846: 841: 836: 831: 826: 821: 816: 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45: 44: 38: 34: 1154:Pleistocene 868:Ice-related 779:Frost heave 713:Stalactites 283:Aboard the 74:icebreakers 23:Drift ice, 1215:Categories 1200:Wiktionary 1144:Glaciology 1099:Other uses 969:Ice racing 964:Ice hockey 939:Iceboating 870:activities 641:Formations 632:Superionic 381:On Sea Ice 354:References 234:/ pack ice 218:Baltic Sea 164:atmosphere 112:navigation 911:Sculpture 727:Phenomena 481:1520-0442 347:Shelf ice 311:Ice shove 232:Ice floes 81:ice floes 50:brash ice 46:Drift ice 39:drift ice 25:Greenland 1178:Category 1136:Ice ages 1090:Yakhchāl 1070:Icehouse 896:Climbing 891:Blocking 886:Blasting 804:Hair ice 754:Crystals 530:Archived 513:Archived 293:See also 179:Hokkaidō 148:seawater 142:and the 66:pack ice 58:fast ice 35:Fast ice 1221:Sea ice 1060:Cutting 1034:Pykrete 954:Cycling 949:Curling 944:Cricket 916:Skating 906:Rafting 901:Fishing 881:Bathing 824:Nucleus 809:Jacking 788:sea ice 786: ( 718:Volcano 682:calving 680: ( 678:Iceberg 673:Glacier 341:Sea ice 323:Polynya 305:Iceberg 253:around 197:Gallery 168:climate 135:floes. 54:sea ice 1193:  1182:  1171:  1065:Icebox 1024:Palace 1009:Bridge 926:Sports 844:Slurry 819:Needle 769:Frazil 688:Icicle 648:Anchor 479:  388:  285:Aurora 213:Kontio 89:medium 70:ridges 1116:Cream 1106:Chips 1085:Trade 1019:Igloo 1014:Hotel 934:Bandy 859:Storm 849:Slush 839:Shuga 834:Shove 794:Glaze 774:Frost 749:Clear 739:Black 708:Spike 703:Sheet 668:Field 608:water 604:state 601:solid 183:Japan 101:giant 85:small 52:, is 1126:Pack 1121:Cube 1111:Core 1080:Pick 1053:Work 1044:Road 1039:Rink 1029:Pier 854:Snow 829:Rime 814:Névé 799:Hail 759:Firn 663:Dune 658:Cave 599:The 477:ISSN 386:ISBN 97:vast 1004:Bar 764:Fog 698:Sea 693:Jam 653:Cap 606:of 591:Ice 503:'s 467:doi 93:big 1217:: 475:. 463:12 461:. 457:. 453:12 434:, 361:^ 181:, 170:. 790:) 684:) 583:e 576:t 569:v 483:. 469:: 394:. 130:) 120:)

Index


Greenland

sea ice
fast ice
sea currents
ridges
icebreakers
ice floes
navigation
Polar ice packs
Ecology of sea ice
Arctic ice pack
Antarctic ice pack
seawater
polar regions
Arctic Ocean
Southern Ocean
atmosphere
climate
Sea of Okhotsk
Hokkaidō
Japan
100 Soundscapes of Japan
Northern Hemisphere
The icebreaker Kontio, which in this picture became stuck in drift ice while towing a cargo ship in pack ice in the northern Baltic Sea
Kontio
Baltic Sea
Ice floes / pack ice
Ice floes

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