Gridded northern hemisphere NSIDC sea ice region codes (version 2021) at resolutions between 1 and 75 km

<p>Gridded Arctic Marine Regions Codes at resolutions&nbsp; of 1, 3.125, 6.25, 12.5, 25, 50 &amp; 75 km. The source data are shapefiles from the National Snow and Ice Data Center (NSIDC):</p> <p><a href="https://insidecires.colorado.edu/rendezvous/uploads/Rendezvous_2021_1448_1619668996.pdf">A new regional mask for Arctic sea ice trends and climatologies (J. Scott Stewart and Walter N. Meier, NSIDC) </a>(last accessed June 2024)</p> <table> <tbody> <tr> <th>Region Code</th> <th>Region Name</th> </tr> </tbody> <tbody> <tr> <td>0</td> <td>Undefined Region</td> </tr> <tr> <td>1</td> <td>Central Arctic</td> </tr> <tr> <td>2</td> <td>Beaufort Sea</td> </tr> <tr> <td>3</td> <td>Chukchi Sea</td> </tr> <tr> <td>4</td> <td>East Siberian Sea</td> </tr> <tr> <td>5</td> <td>Laptev Sea</td> </tr> <tr> <td>6</td> <td>Kara Sea</td> </tr> <tr> <td>7</td> <td>Barents Sea</td> </tr> <tr> <td>8</td> <td>East Greenland Sea</td> </tr> <tr> <td>9</td> <td>Baffin Bay &amp; Labrador Sea</td> </tr> <tr> <td>10</td> <td>Gulf of St. Lawrence</td> </tr> <tr> <td>11</td> <td>Hudson Bay</td> </tr> <tr> <td>12</td> <td>Canadian Archipelago</td> </tr> <tr> <td>13</td> <td>Bering Sea</td> </tr> <tr> <td>14</td> <td>Sea of Okhotsk</td> </tr> <tr> <td>15</td> <td>Sea of Japan</td> </tr> <tr> <td>16</td> <td>Bohai Sea</td> </tr> <tr> <td>17</td> <td>Baltic Sea</td> </tr> <tr> <td>18</td> <td>Gulf of Alaska</td> </tr> </tbody> </table> <p>Data files contain resolution in meters in the filename (nsidc_arctic_region_mask_2021_ease2_{resolution_m}.nc). The file format is netCDF-4 and the datafile contains one&nbsp; variable (region_id). The coordinate reference system of the variables is defined by EPSG:6931 (WGS 84 / NSIDC EASE-Grid 2.0 North) and the bounds of the data set are supplied as xc and yc variables in the data file.&nbsp;</p>