Hilary McMillan
@mcmillanhydro.bsky.social
Professor of Water Resources at San Diego State University. Watershed hydrology and hydrological processes.
Reposted by Hilary McMillan
How about some real actual hydrology? 🌊
West Kettle River near Rhone
Sep 2 2021 ~ 0.53 m3/s typical late season low flow
Apr 20 2025 ~53 m3/s ramping up to Q2 at start of freshet
West Kettle River near Rhone
Sep 2 2021 ~ 0.53 m3/s typical late season low flow
Apr 20 2025 ~53 m3/s ramping up to Q2 at start of freshet
April 22, 2025 at 4:52 PM
How about some real actual hydrology? 🌊
West Kettle River near Rhone
Sep 2 2021 ~ 0.53 m3/s typical late season low flow
Apr 20 2025 ~53 m3/s ramping up to Q2 at start of freshet
West Kettle River near Rhone
Sep 2 2021 ~ 0.53 m3/s typical late season low flow
Apr 20 2025 ~53 m3/s ramping up to Q2 at start of freshet
Reposted by Hilary McMillan
Hydrology Paper of the Day @iflscience.com on weird hydrology: rivers that flow in different drainage basins; why some rivers flow in two directions or have a reversed direction of flow; a lake that drains into two oceans; river capture and geological controls; modelling; and management challenges.
In a new study, scientists have reviewed nine rivers and lakes in the Americas that appear at first to break away from the conventional rules of hydrology.
www.iflscience.com/scientists-s...
www.iflscience.com/scientists-s...
Scientists Spot Rivers That Are "Hydrologic Equivalent Of A Wormhole Between Two Galaxies"
These rivers at first seem to defy the rules of hydrology.
www.iflscience.com
April 8, 2025 at 4:24 AM
Hydrology Paper of the Day @iflscience.com on weird hydrology: rivers that flow in different drainage basins; why some rivers flow in two directions or have a reversed direction of flow; a lake that drains into two oceans; river capture and geological controls; modelling; and management challenges.
Reposted by Hilary McMillan
OUT NOW: A fantastic new read for hydrologists 📚: a wrap-up of the Panta Rhei scientific decade of @iahs-aish.bsky.social. Between 2013 and 2022, it explored links between changes in hydrology and society. 🌍 In this paper, Heidi Kreibich and her colleagues present ten years of progress. 👇
Panta Rhei: a decade of progress in research on change in hydrology and society
To better understand the increasing human impact on the water cycle and the feedbacks between hydrology and society, the International Association of Hydrological Sciences (IAHS) organized the scie...
www.tandfonline.com
April 4, 2025 at 12:33 PM
OUT NOW: A fantastic new read for hydrologists 📚: a wrap-up of the Panta Rhei scientific decade of @iahs-aish.bsky.social. Between 2013 and 2022, it explored links between changes in hydrology and society. 🌍 In this paper, Heidi Kreibich and her colleagues present ten years of progress. 👇
New paper! After much work by me and my students we created a global database of hundreds of research watersheds, and perceptual models of their hydrologic processes. We use the data to test classic theories on how climate and landscape control dominant processes. www.nature.com/articles/s44...
Global patterns in observed hydrologic processes - Nature Water
This study presents a global, searchable database of 400 research watersheds with published descriptions of dominant hydrologic flow pathways, supporting efficient hypothesis testing to investigate em...
www.nature.com
April 6, 2025 at 4:24 PM
New paper! After much work by me and my students we created a global database of hundreds of research watersheds, and perceptual models of their hydrologic processes. We use the data to test classic theories on how climate and landscape control dominant processes. www.nature.com/articles/s44...
Reposted by Hilary McMillan
Today we were in the Re della Pietra #catchment
danielepenna.wixsite.com/redellapietra.
We installed a new #weather station and showed the site to some private #stakeholders.
And this little paper came out right today.
rdcu.be/efM8w
Congrats @mcmillanhydro.bsky.social and coauthors!
danielepenna.wixsite.com/redellapietra.
We installed a new #weather station and showed the site to some private #stakeholders.
And this little paper came out right today.
rdcu.be/efM8w
Congrats @mcmillanhydro.bsky.social and coauthors!
March 31, 2025 at 9:13 PM
Today we were in the Re della Pietra #catchment
danielepenna.wixsite.com/redellapietra.
We installed a new #weather station and showed the site to some private #stakeholders.
And this little paper came out right today.
rdcu.be/efM8w
Congrats @mcmillanhydro.bsky.social and coauthors!
danielepenna.wixsite.com/redellapietra.
We installed a new #weather station and showed the site to some private #stakeholders.
And this little paper came out right today.
rdcu.be/efM8w
Congrats @mcmillanhydro.bsky.social and coauthors!
Thank you John for highlighting our work!
“Global patterns in observed hydrologic processes” @mcmillanhydro.bsky.social @rarakihydro.bsky.social @jansei.bsky.social www.nature.com/articles/s44...
Global patterns in observed hydrologic processes - Nature Water
This study presents a global, searchable database of 400 research watersheds with published descriptions of dominant hydrologic flow pathways, supporting efficient hypothesis testing to investigate em...
www.nature.com
April 6, 2025 at 4:13 PM
Thank you John for highlighting our work!
Where does macroplastic pollution in rivers come from? In urban San Diego, most is dumped directly in the river corridor. Volunteer clean up efforts are essential, but plastic stored in the river keeps increasing. Paper from MS student TJ Palmer agupubs.onlinelibrary.wiley.com/doi/full/10....
Quantifying Sources, Sinks and Mitigation of Macroplastic and Other River Debris: A Trash Balance Model
We developed a holistic model of riverine macroplastic and debris sources, sinks and transport dynamics for urban rivers Much more debris is directly deposited on the floodplain by dumping and ab...
agupubs.onlinelibrary.wiley.com
March 24, 2025 at 11:03 PM
Where does macroplastic pollution in rivers come from? In urban San Diego, most is dumped directly in the river corridor. Volunteer clean up efforts are essential, but plastic stored in the river keeps increasing. Paper from MS student TJ Palmer agupubs.onlinelibrary.wiley.com/doi/full/10....
Hope to see CSU students at this meeting! I will be attending alongside graduate students from SDSU Geography
Hey CSU grad students-deadline to submit your abstract to the #GordonResearchConference is March 16! #GRC is an amazing meeting, you should go!!! #sciencerocks #hydrology #biology #geochemistry #calstate
Remember to apply and register for this summer's Catchment Science GRC! The best conference you'll ever go to. Deadlines coming up on March 16 for graduate students to submit their oral abstracts to the GRS.
www.grc.org/catchment-sc...
www.grc.org/catchment-sc...
March 14, 2025 at 11:00 PM
Hope to see CSU students at this meeting! I will be attending alongside graduate students from SDSU Geography
Are you a graduate student or postdoc interested in the GRS/GRC Catchment hydrology conferences this June? GRS Chair Ally Jacoby has just published this first-time attendees guide! younghs.com/2025/03/03/a...
A First-Time Attendee’s Guide to the 2025 Catchment Science Gordon Research Seminar (GRS) and Conference (GRC)
Written by Ally Jacoby When I first heard the Gordon Research Conference on Catchment Science described as ‘hydrology summer camp’, I was immediately sold on going. I attended for the first time in…
younghs.com
March 4, 2025 at 8:30 PM
Are you a graduate student or postdoc interested in the GRS/GRC Catchment hydrology conferences this June? GRS Chair Ally Jacoby has just published this first-time attendees guide! younghs.com/2025/03/03/a...
Reposted by Hilary McMillan
Hydrology Paper of the Day @rarakihydro.bsky.social on how soil moisture metrics and observations improve the outputs of a rainfall-runoff model: evaluation of model performance with hydrologic signatures; application to watersheds in New Zealand and the US; partitioning; and calibration.
My 1st PhD chapter is (finally) out! 🥳
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
February 28, 2025 at 3:31 AM
Hydrology Paper of the Day @rarakihydro.bsky.social on how soil moisture metrics and observations improve the outputs of a rainfall-runoff model: evaluation of model performance with hydrologic signatures; application to watersheds in New Zealand and the US; partitioning; and calibration.
Reposted by Hilary McMillan
Talk abstracts for Catchment Science Gordon Research Seminar (GRS) before GRC are due on 3/15/25. Submit early for a talk! Exciting venue for science + networking for early careers!
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
February 26, 2025 at 5:45 PM
Talk abstracts for Catchment Science Gordon Research Seminar (GRS) before GRC are due on 3/15/25. Submit early for a talk! Exciting venue for science + networking for early careers!
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
I'm really looking forward to this talk!
I’m excited to be the keynote speaker for this summer’s Gordon Research Seminar on Catchment Science! I’ve never attended a Gordon Conference before, and the early career seminar seems like a great opportunity for grad students and postdocs. Check it out!
#EnvironmentalJustice
#EnvironmentalJustice
Talk abstracts for Catchment Science Gordon Research Seminar (GRS) before GRC are due on 3/15/25. Submit early for a talk! Exciting venue for science + networking for early careers!
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
Keynote speaker Dr Ryan Emanuel on Environmental Justice. @waterpotential.bsky.social
www.grc.org/catchment-sc...
February 27, 2025 at 2:28 AM
I'm really looking forward to this talk!
Remember to apply and register for this summer's Catchment Science GRC! The best conference you'll ever go to. Deadlines coming up on March 16 for graduate students to submit their oral abstracts to the GRS.
www.grc.org/catchment-sc...
www.grc.org/catchment-sc...
February 20, 2025 at 9:27 PM
Remember to apply and register for this summer's Catchment Science GRC! The best conference you'll ever go to. Deadlines coming up on March 16 for graduate students to submit their oral abstracts to the GRS.
www.grc.org/catchment-sc...
www.grc.org/catchment-sc...
Reposted by Hilary McMillan
My 1st PhD chapter is (finally) out! 🥳
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
February 20, 2025 at 4:50 PM
My 1st PhD chapter is (finally) out! 🥳
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
We have tested soil moisture as an objective metric in a Next-Gen rainfall-runoff model—a Conceptual Functional Equivalent (CFE) of WRF-Hydro.
Thank you my mentor @mcmillanhydro.bsky.social and Dr. Fred Ogden for their guidance!
doi.org/10.1111/1752...
Amongst all of this, our students are still publishing excellent papers. My recent Masters student Annie Holt, now at NWS, shows how geologic age and (region-dependent) wetland fraction metrics can be used to improve our predictions of baseflow in watersheds across the U.S.: doi.org/10.1002/hyp....
New Predictors for Hydrologic Signatures: Wetlands and Geologic Age Across Continental Scales
This article contributes to the longstanding effort to use landscape metrics to predict streamflow dynamics. We introduce two new metrics describing wetlands and geologic age and use random forests t....
doi.org
February 20, 2025 at 2:51 AM
Amongst all of this, our students are still publishing excellent papers. My recent Masters student Annie Holt, now at NWS, shows how geologic age and (region-dependent) wetland fraction metrics can be used to improve our predictions of baseflow in watersheds across the U.S.: doi.org/10.1002/hyp....
Reposted by Hilary McMillan
A little bit delayed, but I hear it's picking up over here so sending this out into the world: our Lafayette team including Rachel Hurley (now grad student at WPI), Dave Brandes, and me put out this piece on flashiness across the Mid-Atlantic: onlinelibrary.wiley.com/doi/abs/10.1...
Drivers and Buffers of Stream Flashiness in the Mid‐Atlantic United States
In this study, we investigated flashiness across 195 Mid-Atlantic sites, each within one of seven different physiographic regions. Our findings identified several drivers and buffers of flashiness, e...
onlinelibrary.wiley.com
January 2, 2025 at 4:06 PM
A little bit delayed, but I hear it's picking up over here so sending this out into the world: our Lafayette team including Rachel Hurley (now grad student at WPI), Dave Brandes, and me put out this piece on flashiness across the Mid-Atlantic: onlinelibrary.wiley.com/doi/abs/10.1...
Reposted by Hilary McMillan
Heads up for the Weather Community!
You can now find NOAA (@noaa.gov), NOAA Climate (@climate.noaa.gov) & NWS HQ (@nws.noaa.gov; still being set up) on Bluesky!
You can now find NOAA (@noaa.gov), NOAA Climate (@climate.noaa.gov) & NWS HQ (@nws.noaa.gov; still being set up) on Bluesky!
January 21, 2025 at 6:57 PM
Heads up for the Weather Community!
You can now find NOAA (@noaa.gov), NOAA Climate (@climate.noaa.gov) & NWS HQ (@nws.noaa.gov; still being set up) on Bluesky!
You can now find NOAA (@noaa.gov), NOAA Climate (@climate.noaa.gov) & NWS HQ (@nws.noaa.gov; still being set up) on Bluesky!
Interested in headwater streams? Headwaters make up 77% of global river networks, but have fewer gauges, less accurate models and lesser protections than large rivers. See our review led by @goldenwater.bsky.social at www.nature.com/articles/s44...
Advancing the science of headwater streamflow for global water protection - Nature Water
Despite their substantial contributions to watershed resilience, headwater streams are becoming increasingly imperilled. This Perspective summarizes the status of headwater streamflow information and ...
www.nature.com
January 14, 2025 at 1:09 AM
Interested in headwater streams? Headwaters make up 77% of global river networks, but have fewer gauges, less accurate models and lesser protections than large rivers. See our review led by @goldenwater.bsky.social at www.nature.com/articles/s44...
Reposted by Hilary McMillan
What it has been like, living a few blocks away from the devastated area.
A report from the 2025 Los Angeles fire apocalypse
just my personal account
open.substack.com
January 10, 2025 at 4:37 PM
What it has been like, living a few blocks away from the devastated area.
Reposted by Hilary McMillan
An incredible group of scientists and colleagues joined forces to support improved data, modeling, and analyses of headwater streamflow to improve surface water protections globally. Check out our paper, hot off the presses, in @naturewaterjnl.bsky.social. www.nature.com/articles/s44...
Advancing the science of headwater streamflow for global water protection - Nature Water
Despite their substantial contributions to watershed resilience, headwater streams are becoming increasingly imperilled. This Perspective summarizes the status of headwater streamflow information and ...
www.nature.com
January 2, 2025 at 5:20 PM
An incredible group of scientists and colleagues joined forces to support improved data, modeling, and analyses of headwater streamflow to improve surface water protections globally. Check out our paper, hot off the presses, in @naturewaterjnl.bsky.social. www.nature.com/articles/s44...
Reposted by Hilary McMillan
R u a female ECR (MSc, PhD, postdoc)? We offer Visiting Fellowships in Hydrology/Ecohydrology in my research group in Berlin, Germany on hydrological/ ecohydrological topics: www.igb-berlin.de/tetzlaff
Fellowships 2000€ for 2-4 wks. Send letter of motivation & CV to abteilungsleitung1@igb-berlin.de
Fellowships 2000€ for 2-4 wks. Send letter of motivation & CV to abteilungsleitung1@igb-berlin.de
December 16, 2024 at 7:39 PM
R u a female ECR (MSc, PhD, postdoc)? We offer Visiting Fellowships in Hydrology/Ecohydrology in my research group in Berlin, Germany on hydrological/ ecohydrological topics: www.igb-berlin.de/tetzlaff
Fellowships 2000€ for 2-4 wks. Send letter of motivation & CV to abteilungsleitung1@igb-berlin.de
Fellowships 2000€ for 2-4 wks. Send letter of motivation & CV to abteilungsleitung1@igb-berlin.de
Reposted by Hilary McMillan
30,000!! whoa.
Thank you for being part of a record-breaking #AGU24! 🎉 With over 30,000 attendees, this year was truly unforgettable.
Mark your calendars for #AGU25 in New Orleans, Louisiana, from 15–19 December 2025. See you next year! 🗓️✨
https://buff.ly/3Bs1eQj
Mark your calendars for #AGU25 in New Orleans, Louisiana, from 15–19 December 2025. See you next year! 🗓️✨
https://buff.ly/3Bs1eQj
December 14, 2024 at 4:10 PM
30,000!! whoa.
Reposted by Hilary McMillan
The full solicitation for the new Water, Landscape, and Critical Zone processes (WaLCZ) program is out! Come by the NSF booth (1101) at #AGU24 between 10:30 am and 1 pm to talk with me about it! new.nsf.gov/funding/oppo...
Water, Landscape, and Critical Zone Processes (WaLCZ)
new.nsf.gov
December 11, 2024 at 1:19 PM
The full solicitation for the new Water, Landscape, and Critical Zone processes (WaLCZ) program is out! Come by the NSF booth (1101) at #AGU24 between 10:30 am and 1 pm to talk with me about it! new.nsf.gov/funding/oppo...
Today's AGU vibe
December 10, 2024 at 11:07 PM
Today's AGU vibe