could you put that web address in the chat?

https://data.london.gov.uk/dataset/climate-risk-mapping

thank you

Can I just check why BAME not included?

Why using LST instead of Air Temperature?

Sorry a bit delayed - Why are the green / blue space measures not included in the heat overlay? Also what is the HEX unit and why did you choose this?

Was there some difficulty quantifying risk where the hexes are blank?

Air temperature data was not available at a low resolution over a long period of time. For LST we used 5 years of satellite data to develop localized heat maps for London

Understand why you are adding the risk but are the hazards different in the way they impact on people and infrastructure?

Is all the underlying data open source?

so if its LST satellite data is it ave temps at roof level?

@Julie yes that's right. We recognize that it will have some limitations.

@Julie - satellite data is an imperfect proxy for what residents experience at street level

from an equity perspective is it possible to overlay deprivation data/indices?

@Adam on LST - could you remove the non-ground values (i.e. rooftops) from the map?

We're looking to use this map for our Local Plan update regarding overheating risk, but also to inform a local Urban Greening factor that reflects this risks, as well as other uses. The 'toggling' of vulnerable groups to help us analyse the risk would be extremely helpful, for example in support of responding to planning applications.

Just wondering what buldings/ built environment indicators you considered in preparing maps?

yes see Vincents paper on cit captured ait T data

Is there a plan to produce some narrative around this - you may be coming to this e.g. a borough climate risk profile or which highlights across London which boroughs areas have the greatest climate risk.

Citation: Benjamin, K.; Luo, Z.;Wang, X. Crowdsourcing Urban AirTemperature Data for EstimatingUrban Heat Island and BuildingHeating/Cooling Load in London.Energies 2021, 14, 5208.https://doi.org/10.3390/en14165208

https://www.theguardian.com/uk-news/2021/sep/23/climate-crisis-fifth-london-schools-susceptible-flooding-sadiq-khan

Yes I saw that article which was interesting and helpful

And I supposed started me thinking about what would be helpful.

Is it possible to include info on how the characteristics of the built environment contributes or not to climate vulnerability?

Dimple Rana, you cannot suppress these. The LST may be measured at both roof and street level at the same time depending on the azimuthal viewing angle and the resolution of the satellite. It can also capture surface temperature of the tree canopy or the building walls.

Can we use import these risk maps on to our own GIS system so that we can identify our estates which are most at risk?

I've spoken with Kristen previously about some ideas to enhance the risk mapping - for example at Atkins we produce risk maps integrating climate change projections from UKCP18, and consider metrics about vulnerability of built environment and natural environment. It's a really useful way to identify hotspots for further investigation as Kristen said

and consider how risks are changing from today (baseline risk maps) compared to risk in future

Also can I check whether this is based on RCP 8.5 or RCP 2.6?

Yes @Francis - would be great to add climate change "uplifts" to this data. Tricky with surface water flooding but we can think about this

@Angelique, we avoided using indices to prevent double counting

@chit chong my understanding is that the risk maps produced by Bloomberg show baseline risk (risks today) rather than future risks under different climate scenarios. Climate scenarios could be considered

And @Chit - at the moment these show current hazards without climate change. It's something we'd like to add on in the future

do any of the projects align flood risk mitigation with tree planning ? as a combined approach?

Thanks @lauren ! is there another way? I've noted ethnicity but this is fairly crude..

@Angelique, are there particular metrics in which you’re interested?

@Alastair I remember there was some mention of trees and flood risk as part of the Grow Back Greener and FN2030 funds - will have to go back and check...

@Alastair, these projects highlighted don’t address flood risk— but in NYC, we plant trees with bioswales and retention infrastructure to address flooding with planting

@Kristen to consider climate change uplifts for surface water flooding we have data from the 2.2km local projections from UKCP18. It might be better to do this at a London borough level as grid cell level is a little over-precise for the projections

Sorry if you already said this: when are you planning for the 2.0 version to be available?

But projections do not integrate urban schemes for now, do they?

@lauren first thoughts would have been the composite indicators like IMD or other socio-economic index/categories. If index is problematic could look at groups where we anticipate inequalities which could include ethnicity, geography/postcode, specific groups eg older ages

@Angelique, the maps already have age groups (below 5 and above 75) and will include BAME. The 2.0 maps will have a more focused geography

terrific thanks will take a closer look!

was there somewhere that showed your sources for the data somewhere?

https://data.london.gov.uk/dataset/climate-risk-mapping

Thanks a lot or this work. Very useful to bring that out of academics and city hall's corridors :)

Are any boroughs starting to use the maps in the planning process?

yes please!

Just to get it: all the metrics are weighted in the same manner right? None is considered more important than another, or not?

@Oscar, yes

None are weighted

I've worked with another UK city to use risk mapping to consider climate risks to infrastructure, housing, and natural assets - and to overlay opportunities for nature based solutions. Glad to hear Boroughs around London are looking into this!

Enfield are going to use it to inform a review of our Climate Action Plan. Will also flag it to our Local Plan development team.

Thank you so much - fantastic work and session!

Great session!

Thank you, this has been really interesting and helpful. Lots of food for thought and for actions.

Thanks all

thank you !

Thanks all - really great work!

Very exciting work, thanks for a very helpful overview

Thank you

Thank you

Thank you all! such a brilliant project/resource for us all!