The northern wetlands study (NOWES): an overview

Abstract

This special section comprises 40 papers on the exchange of trace gases, flux measurements and atmospheric chemistry in the northern wetlands study (NOWES). CO2, CH4, N2O, O3, and nonmethane hydrocarbons (NMHC) between the surface and the atmosphere were measured across a 140-km transect, representing approximately 500 years of peatland evolution. This transect was located in the southern portion of the Hudson Bay lowland. A second study of surface exchange was conducted in the subarctic region of the northern Hudson Bay lowland. Regional flux surveys were conducted by aircraft between the two study areas. An integral part of the study was to determine the size of the source/sink of various gases and to compare the flux estimates made by several different techniques. -after Authors