Jim Stagge
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staggehydro.bsky.social
Jim Stagge
@staggehydro.bsky.social
Asst Professor at Ohio State
www.jstagge.com
Hydrologist studying drought, water management, climate change, and statistics in hydrology
Pinned
A reminder the climate pattern we've seen in #Ohio the last two years (near record wet winter/spring followed by severe summer/early fall #drought) is predicted by #climatechange models and supported by observations. A #newnormal we all will have to deal with.

doi.org/10.1029/2023...
Centennial‐Scale Intensification of Wet and Dry Extremes in North America
This study models seasonal drought and pluvial trends, merging reconstructions, observations, and projections from 850 to 2100 CE Results show widespread exacerbation of both extremes with overal...
doi.org
It's hydrologic new year! Not sure I'd go so far as "happy"
happy new year written in gold balloons on a purple background
ALT: happy new year written in gold balloons on a purple background
media.tenor.com
October 1, 2025 at 6:15 PM
A reminder the climate pattern we've seen in #Ohio the last two years (near record wet winter/spring followed by severe summer/early fall #drought) is predicted by #climatechange models and supported by observations. A #newnormal we all will have to deal with.

doi.org/10.1029/2023...
Centennial‐Scale Intensification of Wet and Dry Extremes in North America
This study models seasonal drought and pluvial trends, merging reconstructions, observations, and projections from 850 to 2100 CE Results show widespread exacerbation of both extremes with overal...
doi.org
October 1, 2025 at 6:13 PM
New research led by Kay Sung explores 1,250 years of precipitation trends across U.S. watersheds.

Using tree rings, climate model output, & non-stationary SPI, we show how climate change is shaping seasonal rainfall.

iopscience.iop.org/article/10.1...

#ClimateChange #Hydrology #WaterManagement
August 26, 2025 at 12:18 PM
Reposted by Jim Stagge
NOAA's #GreatLakes Environmental Research Lab will be taking an "indefinite hiatus" from communications due to staff cuts. GLERL communicates critical weekly updates about the extent of harmful algal blooms in Lake Erie - like the one that left my hometown of Toledo without drinking water in 2014
February 27, 2025 at 11:45 PM
New paper - how does moving window length affect the annual minima? Relevant for SPI/SPEI #drought

hess.copernicus.org/articles/29/...
Expected annual minima from an idealized moving-average drought index
Abstract. Numerous drought indices originate from the Standardized Precipitation Index (SPI) and use a moving-average structure to quantify drought severity by measuring normalized anomalies in hydroc...
hess.copernicus.org
February 11, 2025 at 2:34 AM
In #Ohio? Worried about this summer's #drought? Want to know how tree rings tell us about climate change? Want to know what models predict about Ohio under #climatechange? Want pizza?

Come out to the Columbus Science Pub Jan 9 at 7:30pm.

boxoffice.upfrontps.org/event/columb...
Columbus Science Pub- Ohio's New Normal, After Climate Change with Dr.
Climate's changing everywhere, including in Ohio. In January, we'll dive into the science of these changes with a local expert. Dr. Jim Stagge is an assistant professor at the Ohio State
boxoffice.upfrontps.org
December 17, 2024 at 4:26 PM
Stop by Monday morning #AGU to see/talk about advances in bringing #hydrology principles/models to proxy #reconstructions

agu.confex.com/agu/agu24/me...
Leveraging Hydrologic Models to Improve Proxy Flow Reconstructions
Proxy streamflow reconstructions provide an opportunity to recreate centuries o...
agu.confex.com
December 3, 2024 at 1:37 PM
An update to the #research #reproducibility policy at Journal of Water Resources Planning and Management
doi.org/10.1061/JWRM...
Update to the Journal of Water Resources Planning and Management’s Reproducible Results Policy | Journal of Water Resources Planning and Management | Vol 151, No 1
doi.org
November 14, 2024 at 2:31 PM
Centuries of seasonal precipitation. Merging/assimilating tree-ring reconstructions, historical observations, and modern measurements.

hess.copernicus.org/articles/28/...
Assessing decadal- to centennial-scale nonstationary variability in meteorological drought trends
Abstract. There are indications that the reference climatology underlying meteorological drought has shown nonstationarity at seasonal, decadal, and centennial timescales, impacting the calculation of...
hess.copernicus.org
May 8, 2024 at 1:56 PM
(4) We are only a week into December. It will be interesting to see where total Intermountain precip stands in March
(3) Finally, #AtmosphericRivers are more important for the coast, as we're seeing with the damage from this storm. They play less of a role in the Rockies (see our supplement), but it looks like this storm might infiltrate into the region and bring plenty of snow
(2) A reminder that there is a lot of natural variability in the climate system. Over the last century, #ElNino tends to decrease total winter (Dec-Feb) precip in Wyo, Utah, but individual storms don't always fall neatly into the long-term pattern
December 15, 2023 at 9:14 PM
(3) Finally, #AtmosphericRivers are more important for the coast, as we're seeing with the damage from this storm. They play less of a role in the Rockies (see our supplement), but it looks like this storm might infiltrate into the region and bring plenty of snow
(2) A reminder that there is a lot of natural variability in the climate system. Over the last century, #ElNino tends to decrease total winter (Dec-Feb) precip in Wyo, Utah, but individual storms don't always fall neatly into the long-term pattern
(1) Interesting timing with the massive #AtmosphericRiver in the Pacific NW. Under ongoing El Nino, we expect Pacific moisture to head south, not north
December 15, 2023 at 9:14 PM
(2) A reminder that there is a lot of natural variability in the climate system. Over the last century, #ElNino tends to decrease total winter (Dec-Feb) precip in Wyo, Utah, but individual storms don't always fall neatly into the long-term pattern
(1) Interesting timing with the massive #AtmosphericRiver in the Pacific NW. Under ongoing El Nino, we expect Pacific moisture to head south, not north
December 15, 2023 at 9:13 PM
(1) Interesting timing with the massive #AtmosphericRiver in the Pacific NW. Under ongoing El Nino, we expect Pacific moisture to head south, not north
December 15, 2023 at 9:12 PM
New study in Nature Water showing how mountains interact with El Nino effects in the Intermountain West

t.co/nSPHFkkY37
Orographic amplification of El Niño teleconnections on winter precipitation across the Intermountai...
The El Niño/Southern Oscillation (ENSO) is a critical control on winter precipitation in the Intermountain West of North America but is impacted by mountainous terrain and climate change. This study ...
t.co
December 15, 2023 at 9:03 PM
New study with former postdoc Max Torbenson on the Morava River. Baseflow separation providing stronger reconstruction target

t.co/2xNOg7W4eI
Escalating Fluctuations in Warm-Season River Flow: A Reconstruction Study of the Morava River, Czech...
Climate change is increasingly contributing to the prevalence of extreme weather phenomena such as severe droughts and floods across Europe. Researchers have expressed concern regarding this trend, ma...
t.co
December 15, 2023 at 9:00 PM
Great time at Inaugural Interdisciplinary Water Research Symposium. Student-led all day event highlighting water-related research. Exciting depth and breadth of water research going on here!

Photo from lunchtime career panel
November 6, 2023 at 8:42 PM