Arsh Grewal
akgrewal.bsky.social
Arsh Grewal
@akgrewal.bsky.social
Watershed Hydrologist | Postdoc in the Watershed Science and Ecohydrology lab at Michigan State University
Thanks Erin Nicholls (not on blusky) for the ET processing and to everyone that helped with the fieldwork for this! @dbarrett867.bsky.social @snowhydro-ty.bsky.social @andrasszeitz.bsky.social
September 25, 2025 at 6:04 PM
The youngest water in storage contributed to ET bc of shallow rooted veg. Results suggest new rain is stored in vadose zone & is disconnected from stream, bc of high field capacity in organic soils. Large rain events and rising water tables appear to mobilize this water, leading to mixing in storage
September 25, 2025 at 6:04 PM
The SAS function for Q suggests preferential selection of water of intermediate ages during low flows, meaning that newer water does not preferentially contribute to stream. The SAS function was more uniform during high flows, potentially due to mixing in storage. (3/n)
September 25, 2025 at 6:04 PM
Streamflow in spring was mostly snow water due to limited mixing with frozen storage. Melting ground ice in the active layer was a significant component of discharge post freshet. Tracer aided WB results show most of the snowmelt left as runoff and most of the rain exited the basin as ET. (2/n)
September 25, 2025 at 6:04 PM
Thanks for the shout-out Doerthe!!
June 13, 2025 at 4:02 AM
Thanks for the shout-out!
June 13, 2025 at 4:01 AM
Greater permafrost extent led to increased seasonality in major ions, whereas stronger topographic gradients led to greater seasonality in DOC. This paper includes sites from Wolf Creek Research Basin as well as the Tombstone Waters Observatory! (3/3)
June 12, 2025 at 9:36 AM
After accounting for Q, we found seasonality in both major ion and DOC concentrations at all sites. Our results suggest seasonal ground thaw primarily drives seasonality in major ions, whereas flushing of the organic layer during freshet may be an important driver of seasonal DOC (2/n).
June 12, 2025 at 9:35 AM
If voters are the problem, what lead them to become the problem? I like to think we haven't adapted to the social media age yet. The 'whole truth' is there, but it's buried with misleading or incomplete info. I think over time, we will get better at sifting through the crap. That's the hope atleast.
February 22, 2025 at 3:38 AM