For validation purposes, a variety of satellite-derived products of sea-ice concentration are available from\u00a0NSIDC. For the period October, 1978, to December, 1996, the Nimbus-7 SMMR and DMSP SSM\/I passive microwave data of daily and monthly archives is found\u00a0here<\/a>. For the period June, 1987, to present, the DMSP SSM\/I daily and monthly polar grid archives are found\u00a0here.<\/p>\n Initial sea-ice thickness is set to 2.0 m everywhere the surface temperature is within one degree of the salinity-dependent freezing point. The latter being determined from the temperature and salinity of the ocean surface waters as initialized using the\u00a0PHC<\/a>\u00a0atlas.<\/p>\n Initial sea-ice velocity is everywhere set to 0.0 m\/s.<\/p>\n There does not exist a sea-ice velocity validation data set for the time period corresponding to the coordinated spin-up experiment, i.e., during 1948-1978. Nonetheless, we can at least make use of the sea-ice velocity fields from the International Arctic Buoy Program (IABP), which span the time period\u00a01979-1998<\/a>, as a guide to the expected sea-ice velocity magnitudes, patterns, and variability.<\/p>\n Initial snow thickness over sea ice is everywhere set to 0.0 m.<\/p>\n For validation purposes, an interannual\u00a0data set<\/a>\u00a0(1979-1998) of “day of onset of melt” over the Arctic sea ice is available from the\u00a0National Snow and Ice Data Center<\/a>. An example of the data that display the onset of melt during 1979 is shown at right.<\/p>\n\t\t\t\t\n\t\t\t\t Sea-Ice Forcing Data Initialization Recommendations are given below for specifying the detailed state of the sea ice at the beginning of the model integration. The strategy adopted to arrive at a reasonable initial sea-ice state for the coordinate experiment involves first initializing the sea-ice state in the manner specified below for January 1948, and then…<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":307,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"tpl-sidebar.php","meta":{"advanced-sidebar-menu\/link-title":"","advanced-sidebar-menu\/exclude-page":false},"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/pages\/930"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/comments?post=930"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/pages\/930\/revisions"}],"predecessor-version":[{"id":1705,"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/pages\/930\/revisions\/1705"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/pages\/307"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/aomip\/wp-json\/wp\/v2\/media?parent=930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Thickness<\/h2>\n
Velocity<\/h2>\n
Snow-Cover Thickness<\/h2>\n
Onset of Surface Melt<\/h2>\n
![\"Onset](\"https:\/\/www2.whoi.edu\/site\/aomip\/wp-content\/uploads\/sites\/100\/2020\/02\/melt_onset_1979_en_85641.gif\" "\\"melt_onset_1979_en_85641\\"")
\n\t\t\t\t<\/a>\n\t\tOnset of melt during 1979.\n\n","protected":false},"excerpt":{"rendered":"