Robin Hogan

Principal Scientist at ECMWF, no longer posting on X.

[Robin Hogan @RobinJHogan]

Goodbye X-osphere! I'll be posting into the blue sky from now on (same ID @robinjhogan). https://t.co/upjvbUewEY

[Robin Hogan @RobinJHogan]

Job opportunity at #ECMWF working on #EarthCARE lidar data assimilation! A great opportunity to join the ECMWF team working with the data from this exciting new satellite. The position may be held in Reading or Bonn, deadline for applications 15th Dec. https://t.co/gOUFuD9ax4

[Robin Hogan @RobinJHogan]

Core-funded position at @ECMWF working on Convection in Global Weather Prediction! This is a fantastic opportunity to join the thriving community of researchers at ECMWF. The position can be held in Reading or Bonn, deadline for applications 25 November. https://t.co/PNckMFoGCA

[Robin Hogan @RobinJHogan]

What's really exciting is that we can then use the cloud and aerosol properties to predict energy flows and radiative heating rates, which really gets to the heart of understanding the role of clouds and aerosols in the climate system. More to come - this is just the start! (3/3)

[Robin Hogan @RobinJHogan]

Very pleased to see the first synergy retrievals from #EarthCARE revealed by @ESA today, showing how the combination of radar, lidar and radiometer can be used to estimate the properties of clouds and aerosol particles in the atmosphere! (1/3) https://t.co/zbqj08zoa0

[Robin Hogan @RobinJHogan]

I have worked on the "CAPTIVATE" algorithm that achieves this over the last ten years, along with my amazing colleagues @mason_shannon, Alessio Bozzo and Nicola Pounder - check out the paper we published last year (2/3). https://t.co/HNrBVoXqJg

[Robin Hogan @RobinJHogan]

All four of #EarthCARE's instruments are now operating! The Atmospheric Lidar (ATLID) is currently being commissioned and we hope to see the first images from it in August - stay tuned! (3/3)

[Robin Hogan @RobinJHogan]

First images from the third of #EarthCARE's four instruments! The 1.65, 0.87 and 0.67 micron reflectances from the multi-spectral imager (MSI) are shown as red, green and blue in the image on the left, enabling ice and liquid cloud to be distinguished. (1/3)

[ESA Earth Observation @ESA_EO]

More #EarthCARE data!

The mission multispectral imager has also delivered the first images, showcasing various types of clouds and cloud temperatures worldwide.

This image shows a thunderstorm north of Naples in Italy on 17 July.

👈The true-colour part of the image on the left shows a very clear large single cloud.
👉The right part of the image, which uses the instrument’s thermal-infrared band, shows that the top of this storm cloud was about –50°C, and that the land below was about 30°C.
https://t.co/WqkeK07tmF

[Robin Hogan @RobinJHogan]

The 500-m resolution of the MSI reveals cloud structures in great detail, here showing orographic waves around the Kuril islands. The MSI provides essential contextual information for the radar, lidar and broadband radiometer. (2/3)

[Robin Hogan @RobinJHogan]

@raulrainfall Raul, we need to calibrate it before the data can be released, target is to release level 1 observations six months after launch.

[Robin Hogan @RobinJHogan]

First light from #EarthCARE's Broadband Radiometer (BBR) and it's a beauty! The BBR measures reflected sunlight and emitted thermal infrared radiation in a 17-km swath centred on the radar/lidar, telling us the impact of clouds and aerosols on radiative energy flows. (1/3)

[ESA Earth Observation @ESA_EO]

New week, new data from @esa_Earthcare instrument!

You are looking at the very first data from the Broadband radiometer: https://t.co/8Gn6YNxIdJ

The broadband radiometer provides accurate measurements of the reflected solar and emitted thermal radiation.
#EarthCARE

[Robin Hogan @RobinJHogan]

We didn't know before launch that the #EarthCARE BBR pixel-level data would be so good, but the quality of these images suggests possibilities for studying the 3D radiative effect of clouds and evaluating high resolution models. (3/3)

[Robin Hogan @RobinJHogan]

What's great about #EarthCARE's BBR is (1) the amazing 650-m resolution in nadir view (compare to 10-20 km for CERES) and (2) the extra perspective from the three views. Look at the different directions of the shadows (in blue) cast by clouds at top & bottom of this image! (2/3)

[Robin Hogan @RobinJHogan]

To be honest I’m almost as happy to see the end of this dismal election campaign as I am of seeing the end of this dreadful government. Little mention of climate change, the damage done by Brexit, or whether UK should sell arms to countries that drop bombs on children. (3/3)

[Robin Hogan @RobinJHogan]

Good luck to all the progressive parties in the UK tomorrow. I’ll be voting Labour but the main priority is to give the Conservatives a huge kicking for all the damage they have done, summarised here... (1/3)
https://t.co/t0RfwJfaUN

[Robin Hogan @RobinJHogan]

…but expressed more poetically by Jonathan Pie (2/3)
https://t.co/9fFZ3vCP2f

[Jonathan Pie @JonathanPieNews]

Election Special 4: The Conservatives.

[Robin Hogan @RobinJHogan]

Announcing the second #EarthCARE launch - this time of the X account! Follow @esa_earthcare for detailed updates from the mission.

[ESA's EarthCARE mission @esa_earthcare]

Think you know #clouds? Think again!

#EarthCARE will demystify these big and misty, often thin and wispy, and occasionally thunderous behemoths.

We’ll also shine a light on aerosols like pollution and dust, and how they and clouds regulate Earth's #climate.

Follow us for more!

[Robin Hogan @RobinJHogan]

Many of the #EarthCARE team, including myself, have been preparing for the launch of this satellite for over 20 years, so it is unbelievably exciting when the data finally start to arrive -- BBC article by @BBCAmos https://t.co/j55FWszaud

[Robin Hogan @RobinJHogan]

@tjlang Can't say I disagree🤣 - we're discussing how best to show the regular quicklooks (at least for the European products) for when we're ready to start generating them.

[Robin Hogan @RobinJHogan]

Beautiful animation of the first data from #EarthCARE's Cloud Profiling Radar provided by @JAXA_en! https://t.co/BkewUMLQjw