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Posts by Joshua B. Fisher

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Our work made the front page of the OC Register Sunday paper.

(I might add that my student, Ashley, and our work were above Sabrina Carpenter and Coachella...)

www.ocregister.com/2026/04/12/p...

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Thank you!

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Hi Belinda, can you please email me the pdf? Thanks! joshbfisher@gmail.com

4 weeks ago 0 1 1 0
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What Can You Do With an Environmental Science Degree? This guide breaks down environmental science careers, job outlook, skills, and education pathways.

news.chapman.edu/2026/01/14/w...

3 months ago 0 0 0 0
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Hydrosat Closes $60M Series B to Grow Its Constellation Hydrosat plans to use the new funds to expand beyond its two sats in orbit, and double its workforce to keep up with growing demand.

"Hydrosat…so hot right now." 🔥🔥🔥🛰️

payloadspace.com/hydrosat-clo...

3 months ago 1 0 0 0
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Climate change has increased global evaporative demand except in South Asia - Communications Earth & Environment Irrigation in South Asia has increased soil and air moisture, leading to more cloud cover and reduced solar radiation, which has regionally counteracted the global rise in evaporative demand, accordin...

Climate change has increased global evaporative demand, except in S. Asia... Find out why/how inside!

www.nature.com/articles/s43...

4 months ago 2 1 0 0

I'll see you there!

4 months ago 0 0 0 0
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I was named to the 2025 world’s “most influential” (top 1% by citations) scientists list (Clarivate Highly Cited Researchers 2025)!

5 months ago 1 0 0 0
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Evapotranspiration data from OpenET were used in a US Supreme Court agreement between New Mexico, Texas, and Colorado over shared/disputed water. This is the first time that satellite remote sensing has been used in the US Supreme Court.

nmdoj.gov/wp-content/u...

5 months ago 1 0 0 0
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Chapman University Rises Nearly 10% in U.S. News & World Report Rankings Chapman University has once again advanced in the annual U.S. News & World Report rankings of America’s Best Colleges, climbing 11 spots nationally. The new ranking continues Chapman’s upward trajecto...

news.chapman.edu/2025/09/23/c...

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Nice!

7 months ago 0 0 0 0
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Featured on the cover of @globalchangebio.bsky.social is a thermal image of Elaeocarpus Grandis taken at @jcuofficial.bsky.social Daintree Rainforest Observatory. In this species we find that populations originating from warmer climates have narrower leaves with higher rates of water loss.

7 months ago 19 5 0 0
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New PhD position in Plant Ecophysiology🌳 Study how atmospheric & soil drought shape tree carbon & water relations at the VPDrought experiment in Switzerland. Start Jan 2026. Apply here: m.refline.ch/273855/1759/... @wslresearch.bsky.social

8 months ago 55 59 1 1
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The Gifford Fire is the largest fire thus far this year in California. Captured by ECOSTRESS.

Data visualized by high-school student Krishiv Jaini

8 months ago 1 0 0 0
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Phoenix just hit the hottest Aug day in recorded history. ECOSTRESS saw it a couple days before with temps of 124F/51C at 9.20AM.

Data visualized by high-school student Kaitlin Cho.

8 months ago 2 0 0 0
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Happening now! Largest fire in France in nearly a hundred years. Captured by ECOSTRESS.

Data visualized by high school student Bill Chen.

8 months ago 2 0 0 0
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Compilation of fires burning in Portugal as captured by ECOSTRESS.

This image was a collaboration from multiple high school students piecing together the individual fires.

Bill Chen Kaitlin Cho Krishiv Jaini Taara Reddy Ray Schaffer Lucas Zaninovich

8 months ago 2 0 0 0
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Sending ❤️ to Portugal, half of which is on fire right now. This fire, outside of Serabigões, captured by ECOSTRESS a few days ago.

8 months ago 2 0 0 1
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Interesting volcanic activity happening at Hawai’i, captured by ECOSTRESS. Volcanic activity here seems to have accelerated anomalously since Dec.

Image captured by 16-year-old Shreyas Chatterjee working with me this summer.

8 months ago 1 0 0 0

Interestingly, some areas of the burn zone had low evaporative stress, and these areas did not burn. These images were compiled by 16-year-old, Justin Reinman, who lost his school in the fire. Justin is working with me on a detailed analysis of the evaporative stress for the fire.

8 months ago 1 1 0 0
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Progression of Evaporative Stress from ECOSTRESS leading up to the Palisades fire in LA earlier this year. Things start off generally alright, then those winds smacked into LA and fast-dried the veg, which fueled the uncontrollable fires.

8 months ago 2 1 1 0
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One of my students, Bill Chen, was looking at the Airport Fire in SoCal from last year using ECOSTRESS. Interesting to see the topographic variability in the temperatures.

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Do We Need Another Green Revolution? As the global population grows, we’ll have to find ways of feeding the planet without accelerating climate change.

www.newyorker.com/magazine/202...

9 months ago 0 0 0 1
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Hydrosat picked up this scorching heatwave sweeping Europe yesterday. Surface temperatures exceeding 67C/150F! It’s great that we can now capture these temps at high resolution globally and with increasing frequency towards daily as we continue to get our constellation online. Stay safe out there!

9 months ago 3 1 0 0
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Assessment of spatial autocorrelation and scalability in fine-scale wildfire random forest prediction models - Scientific Reports Scientific Reports - Assessment of spatial autocorrelation and scalability in fine-scale wildfire random forest prediction models

Another new paper published today using ECOSTRESS again to predict wildfire—this time burn severity—one week before occurrence across New Mexico. This paper also outlines a framework for using machine learning with these data and applications.

www.nature.com/articles/s41...

@drwkid.bsky.social

9 months ago 3 2 0 0
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New paper using ECOSTRESS and machine learning that predicted Australia’s black summer fires a week ahead of occurrence, mostly using high resolution water use efficiency and evaporative stress data.

zslpublications.onlinelibrary.wiley.com/doi/full/10....

9 months ago 5 3 0 0
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Hydrosat poised to launch second thermal-infrared satellite SAN FRANCISCO -- Hydrosat announced plans June 5 to gather thermal-infrared imagery with a second satellite launching later this month on the SpaceX Transporter-14 rideshare. VanZyl-2 has four times the imaging capacity of VanZyl-1, Hydrosat's first spacecraft launched in August. VanZyl-1 observes 2 million square kilometers daily. “On our VanZyl-2 satellite we are able to image 8 million square kilometers per day,” Pieter Fossel, CEO of Washington-based Hydrosat, told…

Hydrosat poised to launch second thermal-infrared satellite

SAN FRANCISCO -- Hydrosat announced plans June 5 to gather thermal-infrared imagery with a second satellite launching later this month on the SpaceX Transporter-14 rideshare. VanZyl-2 has four times the imaging capacity of VanZyl-1,…

10 months ago 4 1 0 0
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Inspired by @jtuttlekeane.bsky.social and @ohdearz.bsky.social, here's what the White House proposed budget cuts to NASA would do to the entirety of the agency's Science Mission Directorate.

Bloodbath is right.

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Graph of carbon dioxide designed as the painting of "The Great Wave off Kanagawa" by Katsushika Hokusai.

Graph of carbon dioxide designed as the painting of "The Great Wave off Kanagawa" by Katsushika Hokusai.

"The Great Wave" of carbon dioxide (CO₂) #ClimateChange #ScienceArt

Graphic produced by robbieandrew.github.io

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Holland Hatch graduation commencement speech at Chapman University 2025
Holland Hatch graduation commencement speech at Chapman University 2025 YouTube video by Josh Fisher

My student, Holland Hatch, graduated today, won the top award for our major, and was selected to give the commencement speech. She’s traveled with me to Costa Rica & New Mexico serving key leadership roles. In short, she’s been amazing. I will miss her and wish her the best.

youtu.be/ErEM0vdYk-4

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