An EO conference roundup: RSPSoc 2013 and the ESA Living Planet Symposium

It’s conference season! I’m at my 2nd conference in 2 weeks, both in Scotland.

Last week was the Remote Sensing & Photogrammetry Society Annual Conference, #RSPSoc2013, hosted in Glasgow. It included a broad range of sessions and scientific output within the ‘family’ atmosphere that you find within societies.

The conference started off with a keynote from Dr. Stewart Walker (BAE Systems and President-Elect of the American Society for Photogrammetry and Remote Sensing)
reviewing the history and innovations in photogrammetry. I was fascinated to find out that in the early days of remote sensing (1960′s) US military satellites ejected cans of photographic film, picked up by aircraft as they fell to Earth, to get high resolution data.

He also showed that since then the number of high resolution optical satellites and the capacity of those satellites to capture information has continuing to increase; in addition to the speed at which an end user can receive captured data. Today Autonomous Unmanned Vehicles (AUVs) have the capability to take very high resolution video that can see objects as small as a songbird.

For me the most incisive comment he made was when he was summarising his own career, where he said that leaders don’t only develop science, but also develop people who develop science. Something worth remembering by every scientific business.

The second keynote was by provided by Craig Clark MBE (Clyde Space), which showcased the growth of the company that is leading the UK Space Agency’s programme to design and launch a cubesat; UKube-1 which is due for launch in December.

Cubesats are small satellites, built in units of 10 cm cubes, with Ukube-1 being 3u i.e. 3 cubes in size (length). These are not the smallest satellites to be launched, but offer the potential to provide scientific quality missions at a much lower cost than conventional satellites; allowing developers to be more innovative with technologies and off the potential for constellation, rather than single, missions. This won’t be the end of conventional larger satellites, as they are still needed for the capture of complex high quality data sets. But these two technologies will give greater flexibility for data capture.

This week I’m at European Space Agency’s Living Planet Symposium http://www.livingplanet2013.org/. Still a ‘family’ atmosphere, but a much larger family with around 1,700 attendees in Edinburgh. The conference has showcased ESA’s historical, current and future missions including SWARM that will be launched in November and the first Copernicus mission (Sentinel 1) that will launch in 2014.

The SWARM constellation (3 satellites) will measure the Earth’s magnetic field which protects us from cosmic radiation and charged particles arriving from the Sun. Whereas Sentinel 1 is a radar mission, which has many different applications as it provides a view of the surface roughness – a rough surface will reflect strongly while a smooth surface will reflect weakly – which is available during the day and night irrespective of cloud cover. Examples include tracking vessel movements at sea, monitoring forests and looking at the growth of mega-cities.

The last week has reminded me that remote sensing and photogrammetry are changing and fast moving fields; new technologies are offering us greater opportunities and flexibilities. But as Dr Walker reminded us, behind all these developments are some amazing people.

Completing the PhD publication triple

Some great news this week! Dr Susan Kay’s third paper from her PhD has been accepted for publication by Applied Optics. Entitled “Sun glint estimation in marine satellite images: a comparison of results from calculation and radiative transfer modeling”, it nicely shows the impact of choosing different models for the sea surface elevation and slope when predicting sun glint. In response to the notice of publication Sue said “It’s great to see that last bit of PhD work finished. Now I’d better get writing about marine ecosystem modelling!” which is her current research at Plymouth Marine Laboratory.

I’ve been one of Sue’s PhD supervisors, alongside Dr John Hedley, and it’s wonderful that she’s had three papers published. There is always an expectation that PhD students will produce papers during their studies, on top of writing up their PhD. However peer-reviewed publications aren’t easy to achieve, more and more papers are being produced but scientists only have limited time to act as reviewers. The consequence is that journals are tending more towards a straight forward acceptance or rejection, rather than longer supported revisions processes. Over the 20+ years I’ve supervised students, some have published several peer-reviewed papers whilst others have not managed to get one accepted. I never achieved a first-authored one during for my own PhD.

I think the differentiating success factors in getting publications are writing up research that is novel (rather than incremental), maintaining self-belief in your work plus a small measure of luck. Many times has a paper been rejected, only to be accepted by another journal after revisions, but for a PhD student the rejection can be a very disheartening process; especially if it’s their first paper.

Therefore if you get rejected, don’t be down-hearted. Use the valuable reviewer feedback to look at the paper with fresh eyes, and give careful thought on where to submit. A lower-ranked journal can be better for a first PhD submission; especially if the research is still in the initial stages of development. Believe in your work, believe in yourself and send the paper out again and do this over and over until you get it accepted. You never know you might get three papers published like Sue!

End of the Envisat Era

MERIS Envisat Image from 28 March 2012

The Envisat satellite sent its last data to earth on the 08 April 2012 after an onboard anomaly; still under investigation. Recent images taken from the ground and Pleiades satellite show it probably tried to enter safe mode, which would have been the first time, but failed to do so.

Since then communication has not been re-established and the European Space Agency (ESA) have informed the world that no new data will be acquired although communication attempts continue in the short-term. This is an unexpected, but not unsurprising, as the satellite has significantly exceeded its design life. In addition, it leaves behind a 10 year archive that will be worked on for the next 5+ years as Phase F of the mission.

This end to an era has been reported negatively (e.g. article in the Economist on the 12 May 2012), but can also be seen as the push that the future needs. The European Commission (EC) and ESA are developing the future GMES missions with first planned to be launched in 2013 assuming ongoing budgetary discussions are resolved.