The standard deviation is assumed to be the OI sampling and random error if there are no observations.Įmpirical orthogonal teleconnection spatial modes: modes 1, 4, and 100. The analysis increment is the analysis minus the first guess. 4, and (bottom) a constant correlation scale of λ = 50 km.Īnalysis increment standard deviation for 1985–2005 for the AVHRR-only daily OI. (top) The variable correlation scales, λ, shown in Fig. (right) The bias-corrected AMSR and AVHRR combined daily OI. (left) The bias-corrected AVHRR-only daily OI. Missing data limited computations south of 60°S and north of 70°N these values were filled by the southern and northern midlatitude averages, respectively.ĭaily OI anomalies for. The smallest scales are in the western boundary current regions the largest are in the Tropics. Zonal and meridional error correlation scales used in the daily OI. Note the irregularities in the Grumbine dataset. ĭaily percentage of ¼° ocean grid boxes with sea ice coverage from two products: Cavalieri et al. The AMSR data were completely missing from 30 Oct to. The maximum number of ocean boxes is 691 454. The types of data are Pathfinder AVHRR, operational AVHRR, and AMSR.

Pathfinder AVHRR was selected for the OI.ĭaily percentage of ¼° ocean grid boxes with day and nighttime satellite data. Zonal monthly averaged satellite and in situ data anomalies are generated on a 1° latitude grid and then differenced. (top to bottom) The AVHRR data products are operational night, Pathfinder night, operational day, and Pathfinder day. Zonal-averaged differences of AVHRR data products minus in situ data.

Seven ice extreme v2