Ronnie Abolafia-Rosenzweig
@ronnieabolafia.bsky.social
Hydrologist researching drought, snow hydrology, wildfire, hydrologic modeling, agriculture, and data assimilation. All views are my own
Our new paper on an improved cross-scale snow cover fraction parameterization for the Noah-MP/WRF modeling system is now published. This important model development was made possible through funding from NOAA.
agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com/doi/full/10....
Improved Cross‐Scale Snow Cover Simulations by Developing a Scale‐Aware Ground Snow Cover Fraction Parameterization in the Noah‐MP Land Surface Model
The Noah-MP ground snow cover fraction (SCF) scheme is enhanced using a scale-aware parameterization derived from STC-MODSCAG and Snow Data Assimilation System (SNODAS) data The new scheme is imp...
agupubs.onlinelibrary.wiley.com
June 2, 2025 at 2:50 PM
Our new paper on an improved cross-scale snow cover fraction parameterization for the Noah-MP/WRF modeling system is now published. This important model development was made possible through funding from NOAA.
agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Ronnie Abolafia-Rosenzweig
Scientific institutions must create--and sustain--new kinds of roles so that researchers can provide the deep public engagement necessary to respond effectively to the escalating impacts of #climate change. The status quo isn't working. nature.com/articles/d41...
Climate researchers need support to become scientist-communicators
Scientific institutions must create roles so that researchers can provide the deep public engagement necessary to respond effectively to the escalating impacts of climate change.
nature.com
March 3, 2025 at 6:29 PM
Scientific institutions must create--and sustain--new kinds of roles so that researchers can provide the deep public engagement necessary to respond effectively to the escalating impacts of #climate change. The status quo isn't working. nature.com/articles/d41...
Reposted by Ronnie Abolafia-Rosenzweig
Welcome to the Bluesky account for Stand Up for Science 2025!
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
February 12, 2025 at 5:04 PM
Welcome to the Bluesky account for Stand Up for Science 2025!
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Reposted by Ronnie Abolafia-Rosenzweig
I have written a short statement responding to mass firings today of #NOAA / National Weather Service (#NWS) staff (which were concentrated among recent hires as well as highly experienced staff who had recently been promoted). Please see below screenshot & below for full text.
February 27, 2025 at 11:17 PM
Reposted by Ronnie Abolafia-Rosenzweig
Firings at the NSF included permanent employees who had already completed their one-year probationary period, as well as at-will workers.
National Science Foundation Fires 168 Workers as Federal Purge Continues
Firings at the NSF included permanent employees who had already completed their one-year probationary period, as well as at-will workers.
wrd.cm
February 18, 2025 at 7:20 PM
Firings at the NSF included permanent employees who had already completed their one-year probationary period, as well as at-will workers.
Reposted by Ronnie Abolafia-Rosenzweig
Melissa and I wrote about our research being purged... www.minnpost.com/community-vo...
Our published work in a government journal curiously disappeared
Several studies for a CDC journal were purged without explanation before a judge’s order restored them. That's unacceptable.
www.minnpost.com
February 15, 2025 at 7:36 PM
Melissa and I wrote about our research being purged... www.minnpost.com/community-vo...
Reposted by Ronnie Abolafia-Rosenzweig
Water memories are short in the American West. Just two years after the 2020–23 drought, the Southwest drifts back to its climatically preferred state: drought.
This 2021 op-ed feels relevant as we approach the 2025 dry season with low snowpack and reservoirs: shorturl.at/Uvsyv
This 2021 op-ed feels relevant as we approach the 2025 dry season with low snowpack and reservoirs: shorturl.at/Uvsyv
February 6, 2025 at 2:34 PM
Water memories are short in the American West. Just two years after the 2020–23 drought, the Southwest drifts back to its climatically preferred state: drought.
This 2021 op-ed feels relevant as we approach the 2025 dry season with low snowpack and reservoirs: shorturl.at/Uvsyv
This 2021 op-ed feels relevant as we approach the 2025 dry season with low snowpack and reservoirs: shorturl.at/Uvsyv
The recent 11 years (2014-2024) contain the hottest 11 years in the 175 year global temperature record
the probability of this happening randomly is one quadrillionth of a percent (10^-15%)
the probability of this happening randomly is one quadrillionth of a percent (10^-15%)
January 24, 2025 at 4:34 AM
The recent 11 years (2014-2024) contain the hottest 11 years in the 175 year global temperature record
the probability of this happening randomly is one quadrillionth of a percent (10^-15%)
the probability of this happening randomly is one quadrillionth of a percent (10^-15%)
Please consider submitting to our session "Quantifying fire impacts on terrestrial hydrology with observations and models" at the 2025 AMS Denver Summit (May 12-16)! Abstract submission can be found under the "15th Fire and Forest Meteorology Symposium"
www.ametsoc.org/index.cfm/am...
www.ametsoc.org/index.cfm/am...
2025 AMS Denver Summit
The AMS is a global community committed to advancing weather, water, and climate science and service.
www.ametsoc.org
November 20, 2024 at 3:31 PM
Please consider submitting to our session "Quantifying fire impacts on terrestrial hydrology with observations and models" at the 2025 AMS Denver Summit (May 12-16)! Abstract submission can be found under the "15th Fire and Forest Meteorology Symposium"
www.ametsoc.org/index.cfm/am...
www.ametsoc.org/index.cfm/am...
*New paper*
Fire disturbances can significantly change basin-scale hydrology. In this new paper we quantify the sensitivity of the WRF-Hydro model to fire-related disturbances in CA’s Feather River Basin
onlinelibrary.wiley.com/doi/abs/10.1...
Fire disturbances can significantly change basin-scale hydrology. In this new paper we quantify the sensitivity of the WRF-Hydro model to fire-related disturbances in CA’s Feather River Basin
onlinelibrary.wiley.com/doi/abs/10.1...
Quantifying the Impacts of Fire‐Related Perturbations in WRF‐Hydro Terrestrial Water Budget Simulations in California's Feather River Basin
WRF-Hydro simulates fire-enhanced streamflow, reducing post-fire model anomaly biases. (a) Perimeters of study catchments in the Feather River Basin, study gauge locations (black dots) and fire areas...
onlinelibrary.wiley.com
November 18, 2024 at 3:52 PM
*New paper*
Fire disturbances can significantly change basin-scale hydrology. In this new paper we quantify the sensitivity of the WRF-Hydro model to fire-related disturbances in CA’s Feather River Basin
onlinelibrary.wiley.com/doi/abs/10.1...
Fire disturbances can significantly change basin-scale hydrology. In this new paper we quantify the sensitivity of the WRF-Hydro model to fire-related disturbances in CA’s Feather River Basin
onlinelibrary.wiley.com/doi/abs/10.1...
Grateful for the opportunity to discuss the Global Goal on Adaptation at #COP29.
One point that was made clear: early warning systems & adaptation strategies must be tailored for local communities and end-users, rooted in deep collaborations with local communities
One point that was made clear: early warning systems & adaptation strategies must be tailored for local communities and end-users, rooted in deep collaborations with local communities
November 11, 2024 at 5:57 PM
Grateful for the opportunity to discuss the Global Goal on Adaptation at #COP29.
One point that was made clear: early warning systems & adaptation strategies must be tailored for local communities and end-users, rooted in deep collaborations with local communities
One point that was made clear: early warning systems & adaptation strategies must be tailored for local communities and end-users, rooted in deep collaborations with local communities
A lot of change for western US drought, with drought area more than doubling over the recent 4 months
October 18, 2024 at 2:55 PM
A lot of change for western US drought, with drought area more than doubling over the recent 4 months
Our group is hiring a 2-year postdoc for fire-hydrology interaction at NSF NCAR Research Applications Laboratory (RAL). If you are interested, please submit your application here: t.co/0SHtOUZ5Ry
Postdoc Fellow I - Fire-hydrology interaction
Job Description Summary: This is a two-year term position for a post-doctoral research fellow at NSF NCAR. The new hire will research observational (satellite and in-situ) analysis and modeling for la...
t.co
July 18, 2024 at 8:20 PM
Our group is hiring a 2-year postdoc for fire-hydrology interaction at NSF NCAR Research Applications Laboratory (RAL). If you are interested, please submit your application here: t.co/0SHtOUZ5Ry
Perhaps the coolest Earth science visualization I’ve come across!
Hydroclimate of South America:
youtu.be/Ngbm0gsmYAw?...
Hydroclimate of South America:
youtu.be/Ngbm0gsmYAw?...
April 10, 2024 at 9:56 PM
Perhaps the coolest Earth science visualization I’ve come across!
Hydroclimate of South America:
youtu.be/Ngbm0gsmYAw?...
Hydroclimate of South America:
youtu.be/Ngbm0gsmYAw?...
Our new publication in JAMES improves snow density accuracy simulated by the Noah-MP land surface model
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
February 26, 2024 at 3:27 PM
Our new publication in JAMES improves snow density accuracy simulated by the Noah-MP land surface model
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
It’s difficult to budget w/out knowing spending!
This is true for the water budget as well! Yet our largest spending of water is unknown over most of the globe. This new paper compares methods that remotely sense irrigation to help bridge this gap 👏
hess.copernicus.org/articles/28/...
This is true for the water budget as well! Yet our largest spending of water is unknown over most of the globe. This new paper compares methods that remotely sense irrigation to help bridge this gap 👏
hess.copernicus.org/articles/28/...
February 6, 2024 at 4:52 PM
It’s difficult to budget w/out knowing spending!
This is true for the water budget as well! Yet our largest spending of water is unknown over most of the globe. This new paper compares methods that remotely sense irrigation to help bridge this gap 👏
hess.copernicus.org/articles/28/...
This is true for the water budget as well! Yet our largest spending of water is unknown over most of the globe. This new paper compares methods that remotely sense irrigation to help bridge this gap 👏
hess.copernicus.org/articles/28/...
“River Recovery from Drought Can Take Years”
Time gaps between meteorological and hydrological drought relief are increasing in a warming climate
eos.org/articles/riv...
Time gaps between meteorological and hydrological drought relief are increasing in a warming climate
eos.org/articles/riv...
January 24, 2024 at 3:07 PM
“River Recovery from Drought Can Take Years”
Time gaps between meteorological and hydrological drought relief are increasing in a warming climate
eos.org/articles/riv...
Time gaps between meteorological and hydrological drought relief are increasing in a warming climate
eos.org/articles/riv...
2023 was the Earth’s hottest year on record. How much is your state warming?
My origin and home states of TX and CO are on a warming trend of >5F/century over the last 5 decades 🥵 with 2023 being the hottest year on record for TX
www.ncei.noaa.gov/access/monit...
My origin and home states of TX and CO are on a warming trend of >5F/century over the last 5 decades 🥵 with 2023 being the hottest year on record for TX
www.ncei.noaa.gov/access/monit...
January 11, 2024 at 7:50 PM
2023 was the Earth’s hottest year on record. How much is your state warming?
My origin and home states of TX and CO are on a warming trend of >5F/century over the last 5 decades 🥵 with 2023 being the hottest year on record for TX
www.ncei.noaa.gov/access/monit...
My origin and home states of TX and CO are on a warming trend of >5F/century over the last 5 decades 🥵 with 2023 being the hottest year on record for TX
www.ncei.noaa.gov/access/monit...
~13% of annual precipitation comes as snow in Fall and Spring for headwater catchments that feed Lake Oroville in CA
These shoulder seasons are also most sensitive to warming altering rain vs snow partitioning and corresponding water management
These shoulder seasons are also most sensitive to warming altering rain vs snow partitioning and corresponding water management
January 3, 2024 at 5:54 PM
~13% of annual precipitation comes as snow in Fall and Spring for headwater catchments that feed Lake Oroville in CA
These shoulder seasons are also most sensitive to warming altering rain vs snow partitioning and corresponding water management
These shoulder seasons are also most sensitive to warming altering rain vs snow partitioning and corresponding water management