Copernicus Sentinels observations as a tool to evaluate NBS implementation

Transcription

1 Copernicus Sentinels observations as a tool to evaluate NBS implementation Nektarios Chrysoulakis & Zina Mitraka FORTH/IACM N. Plastira 100, Vassilika Vouton, 70013, Heraklion zedd2@iacm.forth.gr

2 Outline Introduction NBS effect on UEWCE The potential of EO Copernicus Sentinels for UEB estimation i EO based NBSevaluation The vision

3 Introduction (Stone et al. 2012) (Santamouris et al 2011)

4 Introduction (Reuter 2011)

5 Introduction

6 Introduction The evaluation of the large scale implementation of NBS should be based on their hi sustainability potential, il therefore on their environmental and socioeconomic benefits. To assess environmental impact, urban planners need to quantitatively estimate the modification caused by NBS implementation to the UEWC fluxes. Concerning UEW fluxes, NBS deployment can have an impact on the ambienttemperature. No one knows how much this approach can cool a whole city, since only a few simulations have evaluated specific technologies, such as green roofs, at that scale.

7 NBS effect on UEWCE

8 NBS effect on UEWCE (Olafson and Lindberg 2015)

9 NBS effect on UEWCE (Lindberg and Grimmond 2010)

10 NBS effect on UEWCE fp7.eu (Chrysoulakis et al. 2015)

11 NBS effect on UEWCE Athens Mean air temperature (K) 20: :00 LST in Summer. Base Alternative 1 Alternative 2 Alternative 3 (Chrysoulakis et al. 2015)

12 NBS effect on UEWCE London Yearly mean daytime Lt Latent theat tfl Flux (W/m 2 ). Base Alternative 1 Alternative 2 Alternative 3 (Chrysoulakis et al. 2015)

13 The potential of Sentinels Urban surfaces are complex mixtures of different materials, therefore UEWC fluxes vary widely across a city, and it will almost certainly depart significantly from that measured by any in situ instrumentation. EO provides the advantage of large area spatial coverage at high spatial resolution. The potential of EO to support our understanding of the role of NBS in UEWC budgets modification still remains underexploited.

14 Sentinel based UEB estimation

15 Sentinel based UEB estimation In situ measurements: Wireless network kfor high h spatial resolution measurements of: Surface temperature Air temperature Relative humidity Soil moisture/temperature

16 Sentinel based UEB estimation In situ measurements: Independent for Q E and Q H Eddy covariance from flux towers Large aperture aperture scintillometers 1 km

17 EO for NBS evaluation EO based assessment and monitoring i tools are: capable of quantitatively estimating the effect of NBS to UEWC fluxes. easily transferable to any city. capable of providing benchmark flux data for different applications.

18 EO for NBS evaluation

19 EO for NBS evaluation (Mackey et al. 2012)

20 EO for NBS evaluation (Mackey et al. 2012)

21 EO for NBS evaluation (Mitraka et al. 2015)

22 EO for NBS evaluation

23 EO for NBS evaluation (Mitraka et al. 2015)

24 EO for NBS evaluation (Xu et al. 2008)

25 EO for NBS evaluation

26 The vision Setting up a satellite based robust monitoring scheme to both short and long term monitor the performance and quantitative assess the impact of the deployed NBS against well defined dfi dbaselines. Developing EO based methodologies focusing on the estimation of the modification caused by NBS deployment to UEWC fluxes and budgets, at both local and city scales. Based on these estimations, assessing the effect on NBS on urban climate (carbon sequestration, mitigation of heat island effects, natural cooling and heating, etc.).

27 The vision Developing EO based services for urban planners towards the operational evaluation of NBS implementation, exploiting the improved data quality, coverage and revisit iit times of the Copernicus Sentinels missions. Exploiting our know how on EO based UEWCE estimation: H2020 project URBANFLUXES: urbanfluxes.eu FP7 project BRIDGE: bridge fp7.eu