All Outputs (28)

How reliable are crowd-sourced data in hydrology? Lessons learned from a citizen science experiment (2021)
Presentation / Conference
Klaus, J., Hannah, D., & Pan Chun, K. (2021, April). How reliable are crowd-sourced data in hydrology? Lessons learned from a citizen science experiment. Paper presented at EGU, Vienna

Crowd-sourcing of hydrological data with volunteering citizen scientists has the potential to overcome severe data limitations in space and time. However, several aspects on the reliability, quality, and value of crowd-sourced data are under debate.... Read More about How reliable are crowd-sourced data in hydrology? Lessons learned from a citizen science experiment.

A novel and robust procedure for upscaling sap velocity data based on the species-specific role of DBH and slope for explaining tree-to-tree variability (2021)
Presentation / Conference
Schoppach, R., Pan Chun, K., He, Q., Ginevra, F., & Klaus, J. (2021, April). A novel and robust procedure for upscaling sap velocity data based on the species-specific role of DBH and slope for explaining tree-to-tree variability. Paper presented at EGU, Vienna

Multi-species forests display a substantial tree-to-tree variability in transpiration induced by various vegetation and landscape characteristics. However, how to model transpiration accounting for tree-to-tree variability still needs to be developed... Read More about A novel and robust procedure for upscaling sap velocity data based on the species-specific role of DBH and slope for explaining tree-to-tree variability.

Detecting drought conditions related to vegetation at west continental Europe based on variations from the North and Caspian Seas (2021)
Presentation / Conference
Xu, B., He, Q., Pan Chun, K., Klaus, J., Schoppach, R., & Yetemen, Ö. (2021, April). Detecting drought conditions related to vegetation at west continental Europe based on variations from the North and Caspian Seas. Paper presented at EGU, Vienna

Teleconnections relate regional pressure patterns to local climate anomalies, influencing the variation of vegetation patterns. Over west continental Europe, droughts have been widely investigated with persistent low-frequency atmospheric circulation... Read More about Detecting drought conditions related to vegetation at west continental Europe based on variations from the North and Caspian Seas.

Spatiotemporal vegetation variations and projections driven by atmosphere-ocean oscillations at multiple time scales: A case study in Gansu, China (2020)
Presentation / Conference
He, Q., Pan Chun, K., Pan, X., Chen, L., & Fan, P. (2020, May). Spatiotemporal vegetation variations and projections driven by atmosphere-ocean oscillations at multiple time scales: A case study in Gansu, China. Paper presented at EGU, Vienna

Vegetation is an integrated regional indicator of environmental changes related to soil, water and climate. For investigating climate change impacts on ecosystems, the transition zones of vegetations are natural hotspots of historical variations. As... Read More about Spatiotemporal vegetation variations and projections driven by atmosphere-ocean oscillations at multiple time scales: A case study in Gansu, China.

Analysing and projecting spatial drought conditions of the Seine catchment based on ocean-atmosphere oscillations over interannual and decadal scales (2020)
Presentation / Conference
Pan Chun, K., He, Q., Dieppois, B., Massei, N., & Fournier, M. (2020, May). Analysing and projecting spatial drought conditions of the Seine catchment based on ocean-atmosphere oscillations over interannual and decadal scales. Paper presented at EGU, Vienna

Midlatitude droughts are affected by the tropical disturbances, which are linked to sea-surface temperature patterns in the Pacific and Atlantic Oceans. The combined effects of these two ocean basins manifest themselves in the variation of streamflow... Read More about Analysing and projecting spatial drought conditions of the Seine catchment based on ocean-atmosphere oscillations over interannual and decadal scales.

Stochastic drought quantification for the South Canadian Prairie (2012)
Presentation / Conference
Chun, K., Wheater, H., Vashchyshyn, I., & Khaliq, N. (2012, December). Stochastic drought quantification for the South Canadian Prairie. Presented at AGU Fall Meeting, San Francisco

For formulating robust adaptation policies under nonstationary climate, drought processes need to be characterised and modelled adequately. As a case study, the major drought episode in the early 2000s in the South Canadian Prairie is investigated us... Read More about Stochastic drought quantification for the South Canadian Prairie.

A stochastic assessment of climate change impacts on precipitation and potential evaporation in Alberta (2012)
Presentation / Conference
Vashchyshyn, I., Wheater, H., & Chun, K. (2012, December). A stochastic assessment of climate change impacts on precipitation and potential evaporation in Alberta. Poster presented at AGU Fall Meeting

In many climate change investigations, changes in precipitation are projected under various scenarios; however, changes in evaporation have received relatively less attention. For irrigation and water resources management, the difference between pote... Read More about A stochastic assessment of climate change impacts on precipitation and potential evaporation in Alberta.

An extreme comparison of two downscaling approaches using Bayes factors (2011)
Presentation / Conference
Chun, K., Wheater, H., & Onof, C. (2011, December). An extreme comparison of two downscaling approaches using Bayes factors. Poster presented at AGU Fall Meeting, San Francisco

Extreme rainfall events are the long-standing hydrological interest of flood defence and water resources management. Although traditional extreme value theory allows stationary extreme assessment, recent development of rainfall downscaling approaches... Read More about An extreme comparison of two downscaling approaches using Bayes factors.