This week Iām at the 2016 European Space Agencyās Living Planet Symposium taking place in sunny Prague. I didnāt arrive until lunchtime on Monday and with the event already underway I hurried to the venue. First port of call was the European Association of Remote Sensing Companies (EARSC) stand as weāve got copies of flyers and leaflets on their stand. Why not pop along and have look!
The current excitement and interest in Earth observation (EO) was obvious when I made my way towards the final sessions of the day. The Sentinel-2 and Landsat-8 synergy presentations were packed out, all seats taken and people were crowding the door to watch!
I started with the Thematic Exploitation Platforms session. For a long time the remote sensing community has wanted more data, and now weāre receiving it in ever larger quantities e.g., the current Copernicus missions are generating terabytes of data daily. With the storage requirements this generates there is a lot of interest in the use of online platforms to hold data, and then you upload your code to it, or use tools provided by the platform, rather than everyone trying to download their own individual copies. It was interesting to compare and contrast the approaches taken with hydrology, polar, coastal, forestry and urban EO data.
Tuesday was always going to be my busiest day of the Symposium as I was chairing two sessions and giving a presentation. I had an early start as the 0800 session on Coastal Zones I was co-chairing alongside Bob Brewin āa former PhD student of mine! It was great to see people presenting their results using Sentinel-2. The spatial resolution, 10m for the highest resolution wavebands, allows us to see the detail of suspended sediment resuspension events and the 705 nm waveband can be used for phytoplankton; but weād still like an ocean colour sensor at this spatial resolution!
In the afternoon I headed into European Climate Data Records, where there was an interesting presentation on a long time-series AVHRR above-land aerosol dataset where the AVHRR data is being vicariously calibrated using the SeaWiFS ocean colour sensor. Great to see innovation within the industry where sensors launched one set of applications can be reused in others. One thing that was emphasised by presenters in both this session, and the Coastal Zone one earlier, was the need to reprocess datasets to create improved data records.
My last session of the day was on Virtual Research, where I was both co-chairing and presenting. It returned to the theme of handling large datasets, and the presentations focused on building resources that make using EO data easier. This ranged from bringing in-situ and EO data together by standardising the formatting and metadata of the in-situ data, through community datasets for algorithm performance evaluation, to data cubes that bring all the data needed to answer specific questions together into a three- (or higher) dimensional array that means you donāt spend all your time trying to read different datasets versus ask questions of them.Ā My own presentation focused on our involvement with the ESA funded E-Collaboration for Earth Observation (E-CEO) project, which developed a collaborative platform Ā where challenges can be initiated and evaluated; allowing participants to upload their code and have it evaluated against a range of metrics. Weād run an example challenge focused on the comparison of atmospheric correction processors for ocean colour data that, once setup, could easily be rerun.
Iāve already realised that there too many interesting parallel sessions here, as I missed the ocean colour presentations which Iāve heard were great. The good news for me is that these sessions were recorded. So if you havenāt be able to make to Prague in person, or like me you are here but havenāt seen everything you wanted there are going to be selection of sessions to view on ESAās site, for example, you can see the opening session here.
Not only do events like this gives you to a fantastic chance learn about whatās happening across the EO community, but they also give you the opportunity to catch up with old friends. I am looking forward to the rest of the week!