Weather in the Arctic in 2006
| Selected weather patterns in the Arctic in 2006 are illustrated by two figures showing temperature and phenological characteristics of early summer and mid summer, respectively. Each of the figures represent overlay of the map layers reflecting two different kinds of information. The first one is the deviation of mean June/July temperature in 2006 from mean June/July temperature averaged for the period 1994-2003. This deviation indicates whether respective month in 2006 was warmer (positive value) or colder (negative value) than average. Colour of the points at study sites reflects subjective evaluation by respondents of the spring as being early, average, or late (for early summer), and the summer as warm, average or cold (for mid summer). Please note, that also referring to roughly same period during the summer, the two kind of information reflect essentially different phenomena that should not necessarily agree - for example spring could be early and cold. Temperature data were obtained from the National Climatic Data Center (USA). Only stations with 26 or more daily records for a month were used for interpolation. Grid map was constructed using inverse distance interpolation in MapInfo Professional GIS software, with the following settings: cell size 50 km, search radius 500 km, exponent 1. The area covered by the grid includes the territory obtained from overlay of Arctic boundaries, as defined by CAFF and AMAP, plus additional 100-km buffer around. |
© 2007 International Wader Study Group