TY - JOUR A1 - Meier, W. N. A1 - Gallaher, D. A1 - Campbell, G. G. T1 - New estimates of Arctic and Antarctic sea ice extent during September 1964 from recovered Nimbus I satellite imagery JO - The Cryosphere J1 - TC VL - 7 IS - 2 SP - 699 EP - 705 Y1 - 2013/04/23 PB - Copernicus Publications SN - 1994-0424 UR - https://tc.copernicus.org/articles/7/699/2013/ L1 - https://tc.copernicus.org/articles/7/699/2013/tc-7-699-2013.pdf DO - 10.5194/tc-7-699-2013 ER -