Person
Asa Lovisa Viktoria Horgby
This person is no longer with EPFL
Related publications (7)
Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions
Tom Ian Battin, Hannes Markus Peter, Asa Lovisa Viktoria Horgby, Luis Gómez Gener
Carbon dioxide (CO2) emissions to the atmosphere from running waters are estimated to be four times greater than the total carbon (C) flux to the oceans. However, these fluxes remain poorly constrained because of substantial spatial and temporal variabilit ...
2021Glacier retreat changes diurnal variation intensity and frequency of hydrologic variables in Alpine and Andean streams
Tom Ian Battin, Asa Lovisa Viktoria Horgby, Marta Boix Canadell, Nicolas Thomas Georges Escoffier
The impacts of glacier mass and area loss are assumed to affect stream hydrology and related ecosystems. We applied wavelet analysis to high frequency time series of discharge, conductivity, turbidity, air and water temperature in mountain streams influenc ...
2020Dynamics and potential drivers of CO2 concentration and evasion across temporal scales in high-alpine streams
Tom Ian Battin, Asa Lovisa Viktoria Horgby, Nicolas Thomas Georges Escoffier, Luis Gómez Gener
Carbon dioxide (CO2) evasion from streams greatly contributes to global carbon fluxes. Despite this, the temporal dynamics of CO2 and its drivers remain poorly understood to date. This is particularly true for high-altitude streams. Using high-resolution t ...
2019Spatiotemporal Drivers of CO2 Dynamics and Evasion Fluxes from Mountain Streams
Inland waters are key components of the global carbon cycle, emitting a substantial amount of carbon dioxide (CO2) to the atmosphere. Climate change and global warming affect mountain catchments significantly, leading to glacier retreat and changing precip ...
EPFL2019Unexpected large evasion fluxes of carbon dioxide from turbulent streams draining the world’s mountains
Tom Ian Battin, Enrico Bertuzzo, Amber Joy Ulseth, Asa Lovisa Viktoria Horgby, Pier Luigi Segatto
Inland waters, including streams and rivers, are active components of the global carbon cycle.Despite the large areal extent of the world’s mountains, the role of mountain streams forglobal carbonfluxes remains elusive. Using recent insights from gas excha ...
2019High‐resolution spatial sampling identifies groundwater as driver of CO 2 dynamics in an Alpine stream network
Tom Ian Battin, Amber Joy Ulseth, Asa Lovisa Viktoria Horgby, Marta Boix Canadell
Inland waters are major sources of CO2 to the atmosphere. The origin of this CO2 is often elusive, especially in high‐altitude streams that remain poorly studied at present. Here we study the spatial and seasonal variations in streamwater CO2, its potentia ...
2019Streamwater pCO2in an Alpine Headwater Catchment
Tom Ian Battin, Amber Joy Ulseth, Asa Lovisa Viktoria Horgby, Marta Boix Canadell
Boreal and alpine streams are highly sensitive to climate change. Previous studies have shown the relevance of streams for carbon cycling in boreal landscapes. Less work has been done on alpine streams, and we do not understand the contributions from these ...
2017