Serdecznie zapraszamy na Seminarium, na którym dr Monika Tomaszewska wygłosi referat pt. ,,Snow Cover seasonality in Kyrgyzstan 2001-2021 observed by the Terra MODIS snow product” oraz profesor Geoffrey Henebry wygłosi referat pt. ,,Land Surface Phenology at a Crossroads: Characterizing Seasonalities Using Remote Sensing”.
Seminarium odbędzie się dnia 19 listopada o godz.14.00 w Sali Konferencyjnej IGiK, ul. Z. Modzelewskiego 27, Warszawa.
Dr Monika Tomaszewska jest byłym pracownikiem Centrum Teledetekcji Instytutu Geodezji i Kartografii, jest absolwentką Uniwersytetu Warszawskiego , Wydział Geografii i Studiów Regionalnych. Otrzymała stopień PhD Uniwersytetu South Dakota. Tytuł pracy "Fenologia powierzchni roślinnej i sezonowości obszarów łąkowych Kirgistanu". Jej promotorem był profesor Geoff Henebry. Obecnie pracuje na stanowisku post-doc na Uniwersytecie Michigan- Center for Global Change and Earth Observation.
W seminarium będzie można wziąć udział również w wersji online, na platformie Teams, pod linkiem:
https://teams.microsoft.com/meet/323530016095?p=338TIwzwyNG8ween88
Dr Monika Tomaszewska
"Snow Cover seasonality in Kyrgyzstan 2001-2021 observed by the Terra MODIS snow product".
ABSTRACT:
"Using two decades of MODIS snow-cover data, we investigated trends in four snow seasonality metrics: First Date of Snow (FDoS); Last Date of Snow (LDoS); Duration of the Snow Season (DoSS); and Snow-Covered Days (SCD) across Kyrgyzstan. In our nonparametric approach, we analyzed trends within elevation ranges at two administrative levels: oblast and rayon. We found notable trends to earlier FDoS below 3000 m and more SCD between 1500-3500 m in western KG. We also found the notable trends towards earlier LDoS at both oblast and rayon levels. This analysis revealed more area (107-130%) trending to earlier FDoS than earlier LDoS, highlighting a counterintuitive finding: longer snow seasons starting earlier at lower elevations."
Professor Geoffrey Henebry
Michigan State University, Department of Geography, Environment, and Spatial Sciences
"Land Surface Phenology at a Crossroads: Characterizing Seasonalities Using Remote Sensing"
ABSTRACT:
"Land surface phenology is defined as the seasonal pattern of variation in vegetated land surfaces observed from remote sensing. The literature continues to be confused over concepts and terms, ignoring the fundamental problem of reconciling scales of observation. Moreover, there are myriad misguided searches for simple explanations to truly complex phenomena. However, the increasing availability of high-cadence image time series offers the opportunity to think anew about characterizing seasonalities using remote sensing. Here I outline the problems facing LSP research and offer a novel approach to characterizing seasonalities in the vegetated land surface with examples from croplands in Romania and montane pastures in Kyrgyzstan."