Scholar

Robin J. Hogan

H-index: 61
Environmental science 52%
Geography 19%
robinjhogan.bsky.social
And here's EarthCARE's radar reflectivity with GOES-E for context (thanks to Mark Fielding)!
robinjhogan.bsky.social
The level of detail revealed by EarthCARE is amazing: as well as the usual change in vertical Doppler velocity as snow melts to rain, we can see the rising air in the eye wall! The imager also captures the 3D nature of the convective cells in the rain bands further out. More analysis to come...
robinjhogan.bsky.social
So this is pretty amazing - yesterday EarthCARE sampled Hurricane Humberto straight across the eye! The eye of a tropical cyclone is small so a direct hit is rare: this is the first time EarthCARE has hit one after over a year in orbit! (Showing here also VIIRS on NOAA-20 for context.)
robinjhogan.bsky.social
...and the volcanic plume from Klyuchevskaya Sopka in Russia, which erupted July-August 2025. More coming soon! Thanks as always to @masonshannon.bsky.social for many of the images and to NASA Worldview for the wider context. worldview.earthdata.nasa.gov?v=154.961959...
robinjhogan.bsky.social
EarthCARE is a inexhaustible source of beautiful imagery of some of the most spectacular phenomena nature has to offer, so I've started a Gallery page on the EarthCARE Science web site, showing for example convective motions in the trainbands of Typhoon Ragasa... www.earthcarescience.net/gallery
robinjhogan.bsky.social
This is the first time this process has been observed from space, thanks to EarthCARE's Doppler radar and high-spectral-resolution lidar! But how common is it globally and do these optically thick clouds have an impact on precipitation or even climate? Only EarthCARE can answer these questions!
robinjhogan.bsky.social
When we look at the cloud properties estimated by combining the radar, lidar and imager (using the "ACM-CAP" algorithm developed by @masonshannon.bsky.social and me) we see this layer contains high concentrations of very small ice crystals. The imager shows that they block upward thermal radiation.
robinjhogan.bsky.social
These are atmospheric gravity waves with a wavelength of 18 km, probably triggered by airflow over mountains; wavy structures are also seen in the zoomed-in radar and lidar backscatter. The updrafts bring air to liquid saturation and droplets form, but colder than -40°C they immediately freeze.
robinjhogan.bsky.social
Another great #EarthCARE Image of the Month, this time led by Shannon Mason (@masonshannon.bsky.social): the Doppler radar sees wave structures in an Antarctic cloud while the lidar and imager see an optically thick ice cloud layer at around -45°C. What's going on? earth.esa.int/eogateway/su...
robinjhogan.bsky.social
Good science explains unexpected observations, but great science predicts things only later confirmed from observations. Brilliant article from Nadir Jeevanjee on the fundamental correctness of climate models and the incredible work of Syukuro Manabe. theconversation.com/5-forecasts-...
5 forecasts early climate models got right – the evidence is all around you
From rising global temperatures to the fast-warming Arctic, early climate models predicted the changes half a century ago.
theconversation.com
robinjhogan.bsky.social
Great to see the new #ECMWF building going up on the beautiful University of Reading campus, very near the Meteorology Department - looking forward to moving in in 2027!
robinjhogan.bsky.social
The deadline for abstracts to December's #EarthCARE Science & Validation workshop in Tokyo has been extended to 1st September. www.eorc.jaxa.jp/EARTHCARE/ev...
robinjhogan.bsky.social
ESA has performed careful calculations of projected fuel usage in the case of weak, moderate and strong solar activity - if the next solar maximum is weak, EarthCARE would have fuel for much longer than 10 years! Let's hope the instruments keep operating as successfully as they have so far...🤞
robinjhogan.bsky.social
The next #EarthCARE Science and Validation Workshop is in Tokyo this December - the deadline for abstract submission is 20 August. It will be a great opportunity to share our scientific findings so far and will coincide with the release of final tranche of products. www.eorc.jaxa.jp/EARTHCARE/ev...
robinjhogan.bsky.social
Congratulations to the WIVERN team for all their amazing work in preparing the case for selection, particularly to Professor Anthony Illingworth who had the original idea for WIVERN, as well as being the Father of EarthCARE!
The WIVERN team
robinjhogan.bsky.social
You can learn more from the WIVERN presentations given at the user consultation meeting in Prague last week - I particularly liked the animations showing what WIVERN will measure in tropical cyclones! www.youtube.com/watch?v=5tfX...
Simulated WIVERN winds in a tropical cyclone.
robinjhogan.bsky.social
Great news: "WIVERN" has been recommended as ESA's 11th Earth Explorer satellite following the user consultation meeting last week! WIVERN uses a scanning 94-GHz radar to measure winds and reflectivity in an 800 km swath, invaluable for assimilation and understanding severe weather. wivern.polito.it
robinjhogan.bsky.social
You can find all #EarthCARE web stories listed at the EarthCARE Science web site: www.earthcarescience.net/web-stories
robinjhogan.bsky.social
Taking #EarthCARE merch to the next level! You've got the polo shirt. You've even got the lego model. Now you can enjoy EarthCARE toilet paper! 🧻🧻🧻 Rated top for environmental impact by Consumer NZ 👍 www.stuff.co.nz/business/121...
robinjhogan.bsky.social
You might be interested in this: an EarthCARE orbit "sonified" - I'm sure there are plenty of art-meets-science possibilities with NASA data too: www.esa.int/ESA_Multimed...
www.esa.int
robinjhogan.bsky.social
Science meets art in a fantastic and immersive installation at #LPS25:
the sound is generated from actual #EarthCARE data!
robinjhogan.bsky.social
BIG NEWS from Bjorn Frommknecht at #LPS25: the latest estimate of #EarthCARE mission lifetime based on fuel usage is at least TEN YEARS, much higher than the pre-launch design lifetime of 3-4 years! Opens the door to even more great science!

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