Mittwoch, 18. Januar 2017, 12.15 Uhr im Hörsaal C
Institutskolloquium physische Geographie
Emily Collier spricht zum Thema
Unraveling glacier change signals in high-mountain regions
A key challenge for the climatological and glaciological communities is the detection and attribution of climate change, which is the effort to decompose environmental signals into an anthropogenic component and a component due to internal modes of atmospheric variability, such as climate oscillations. This challenge is especially great in high-mountain regions, where observational data are sparse but environmental changes such as glacier retreat have the potential to strongly impact human populations. Using a case study of Kilimanjaro in East Africa, we employ an interdisciplinary approach to unraveling recent climate and glacier-change signals, combining sub-kilometer resolution atmospheric simulations, in situ measurements, and physically based glacier mass balance modelling over a decadal period. We use these datasets to assess the impact of the El Niño Southern Oscillation and the Indian Ocean Zonal Mode, as well as interactions between them, on large- and local-glacier-scale atmospheric conditions and therefore drivers of glacier change. Elucidating the present-day impact of internal climate variability at high altitudes is key for understanding local phenomena and will permit more accurate assessments of external forcing factors, including future projections.
Alle Interessierten sind herzlich willkommen!
– Pflichtveranstaltung im Rahmen des Bachelor-Studienplan / neue LPO = Modul PG9, GLG8
– ab WS 12/13 = Module KG 15, PG 15, GZB 12, GLG 10 und 11