étiquettes: physical sciences, hydrology, limnology, water chemistry, flooding, carbon dioxide, organic carbon, ice jams
chercheur principal: | Tank, Suzanne E (16) |
Nᵒ de permis: | 15250 |
Organisation: | York University |
Année(s) de permis: |
2013
2012
|
Délivré: | mai 28, 2013 |
Équipe de projet: | Gayla Weeks |
Objectif(s): To examine the solar degradation of riverine dissolved organic carbon (DOC) to carbon dioxide (CO2) throughout the Mackenzie River Delta.
Description du projet: This study will examine the solar degradation of riverine dissolved organic carbon (DOC) to carbon dioxide (CO2) throughout the Mackenzie River Delta. During the spring runoff peak just before summer solstice, ice-jam flooding inundates the Delta with river water, which spreads out in a relatively thin layer over an extended area and is exposed to 24-hour Arctic sunlight. This water is then slowly 'released' from previously flooded lakes, via the series of Delta river channels, throughout the rest of the summer. The objective is to understand how important the Mackenzie Delta is for the transformation of DOC in river water to CO2. The research team will do this by examining the breakdown of dissolved organic carbon contained within samples from Delta lakes and river channels. This year’s work builds upon the preliminary work done during 2012 to examine the solar degradation of DOC. The research team will use helicopte... Plus de résultats