I gave a talk to the lovely Geosystems group at University of Birmingham School of Geography, Earth and Environmental Sciences. I had a load of great chats with the people there.
The invited talk was: Vegetation Biodiversity Hotspots over the Inter-glacial cycle
Plant biodiversity underpins the majority of terrestrial life on earth and therefore requires preservation as a future resource in the face of anthropogenic threats. The last 120,000 years has seen climate change on the same scale as future projections, and in the absence of global paleobotanical data, modelling can provide insights into how plants may have responded. The sustained tropical and hotspot high functional diversity in our model simulations point to the importance of tropical climatic stability and its possible role in supporting the latitudinal diversity gradient observed in the present day. These simulations suggest that biodiversity hotspots remain static despite climate variation, thus emphasizing the importance of protecting present day biodiversity hotspots from land use change.
Carina Williams asked me to give a talk at the Met Office on my work on biological nitrogen fixation in JULES.
Talk on Effects of Different Modelling Approaches to Biological Nitrogen Fixation in IE2.9/BG1.5/CL3.07/SSS13.73 – Nitrogen-transformation processes in terrestrial and aquatic ecosystems under global change.
This was an invited talk on Effects of Land Cover Changes over the Last Glacial-interglacial cycle in BG2.19/CL2.17 – Land use and land cover change effects on surface biogeophysics, biogeochemistry and climate.
CRESCENDO is the European project I’m employed on, and aims to improve earth system models. The GA was an opportunity to catch up with colleagues and discuss progress.
I gave a science talk about my nitrogen fertilisation work, which stimulated a good bit of debate. 😉
A talk to introduce myself to my Exeter colleagues. Thankfully despite the 10am on a Friday time, there was a good turn out and a lively discussion about how the RCPs are made, whether we could get the benefits of albedo changes without the disadvantages and the model limitations.
Title was: “Climate, vegetation and land use in the 21st century”.
JULES is the stand-alone version of the land-surface model that is in the Hadley Centre model that I use. Up in Leicester, (which was beautiful at this sunny time of year) this was a meeting with a small conference feel. There were lots of familiar names and faces there, including Richard Essery (my keyboard probably has slight dents from where I’ve googled ‘Essery Moses’ so many times…).
I spent lots of good time talking to Eleanor Burke and Sarah Chadburn about the PAGE21 permafrost project, which was very interesting. It was good to catch up with met office people too, whom I haven’t had a chance to visit recently.
The talks were a mix of model development talks, like that from the JULES crop group and Anna Harper who has been putting new PFTs into JULES, and some more results/science talks. JULES is a really friendly community that I’m happy to be becoming a part of.
I talked at EGU on the Monday afternoon about some work which shows that the different RCP scenarios have different sensitivities to land use change. The other land surface sessions, many sponsored by iLeaps, were later in the week.
I saw some really interesting work and met up with some familiar faces (from CEH, Max Planck and many others, as always some of the people from Bristol that I don’t see as often as I’d like).
BRIDGE is the group I belong to at Bristol, which has a lot of people who do Paleo modelling, use paleo proxy data and many people whose primary interest is the ocean. I’m one of a small number who are interested in the future and/or the land surface. So giving a talk on canopy interception capacity makes BRIDGE a tough audience as they aren’t, on average, especially interested in my area of research.
So I gave a different angle to my work with an alternative title of ‘How a parameter no one knows or cares anything about, can significantly alter the global climate’. This drew a good number of people and we had a lively discussion about HadCM3.
This was an informal meeting, organised by Eleanor Blyth at CEH. I’ve seen Eleanor’s incisive mind in action at various meetings, so I was really pleased when she invited me to CEH to talk about my work.
CEH have some big names in interception, including John Gash (who, yes, wrote THE Gash model – I tried to control my inner fan girl), Chris Taylor who runs the SWELTER project and others whose papers I’ve read.
CEH use JULES in offline mode a lot, and were interested to see my results from a fully coupled model, especially the temperature change. I was really interested though to see the work presented by Emma Robinson and Phil Harris, both of whom look at interception but approach it from a totally different scale – the daily or even hourly scale – and perspective – looking at heat waves and transpiration.