Sistema di monitoraggio con COSMO‐SkyMed e gestione … monitoring of sites. ... o Implementation of site-specific risk and decision support models, based ... Tivoli – Villa Adriana

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ArTeKSistema di monitoraggio

con COSMO‐SkyMed e gestione dei Beni Culturali al servizio di gestori e visitatori

Luca Benenati

Nicole Dore, Lorenzo Bernardi, Antonio Monteleone

NAIS – Nextant Applications and Innovative Solutions

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ArTeK: The project

2La Missione COSMO-SkyMed: Stato dell’Arte, Applicazioni e Prospettive Future

ARTES 20Integrated Applications Promotion (IAP) Programme

Duration: 24 monthsStart: November 2nd, 2016

Services to improve

safeguard and “preventive and

planned conservation” of cultural heritage1. CH as strategic asset

to be preserved and valued

2. Cultural properties are particular fragile

due to its use & exposure

3. Deterioration of Cultural properties results in economical damages

4. Preventive and planned conservation of CH needs new

tools to assure the effective and systematic assessment and

monitoring of sites

The burning problem

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ArTeK services

3

Safeguard support serviceNew tools to assure the effective, systematic, periodic risk assessment and monitoring of sites over large areas

On-site monitoring serviceSense in real-time for sites that need Continuous monitoring (Sensing as a Service)

Site Management & Mobile Fruition ServicesManage visitors flow data and Valorize sites Geofencing Visitor‐sourced data collection Spatiotemporal‐visual narratives Hotspot analysis Geoticketing Edutainment Proximity fruition (indoor‐outdoor)

La Missione COSMO-SkyMed: Stato dell’Arte, Applicazioni e Prospettive Future

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Improvements in:- decision-making- Institutions programmatic capacity 4

ArTeK: Safeguard support service

4

o Advanced service for the support of CH preventive conservation

o High temporal frequency monitoring

o Medium-to-large spatial coverage scale

o Collection of geo-physical and site specific parameters for the calculation of key indicators

o Implementation of site-specific risk and decision support models, based on hierarchical/multitemporal/multi-sensory methods

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SAR data in ArTeK


ArTeK uses both HR (Sentinel-1) and VHR (COSMO-SkyMed) SAR data to perform the following analysis types

1. Land/Monuments displacements measurement, through:• PS technique• SBAS technique

2. Change detection maps generation to:• Put in evidence changes occurred during dangerous events (e.g. flooding, seismic shocks)• Analyze changes occurred in the territory (e.g. illegal building detection)

Using coherence maps analysis, backscattering amplitude comparison, etc.

3. Ship activities analysis over underwater archaeological park• By using ship detection algorithms (e.g. CFAR)• By comparison with AIS data

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ArTeK test sites

6

Tivoli – Old town centerTivoli – Villa Adriana

(UNESCO site since 1999)

Matera – Sassi di Matera (UNESCO site since 1993)

Civita di BagnoregioThe dying village

(tentative UNESCO list)

BaiaEmerged and submerged

archaeological areas

GianolaArchaeological area

and park

Each site has its specific threats

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Tivoli and Villa Adriana


Courtesy of Google Maps

Villa AdrianaUNESCO site since 1999

TivoliOld town centre

Municipality

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Tivoli and Villa Adriana – PS analysis


Tivoli

Villa Adriana

Constellation COSMO-SkyMed

Image N° 59

Pass Ascending

Acq. Mode Stripmap HI

Polarization HH

Start Date 2013-02-07

End Date 2016-08-10

Images have been acquired into the framework of ASI «Map Italy» program

The temporal series is interrupted just before the seismic event of 2016, August 24th

Acquisitions start again in 2017, March.

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Villa Adriana – PS analysis


Villa Adriana Constellation COSMO-SkyMed

Image N° 59

Pass Ascending


Polarization HH


End Date 2016-08-10

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Villa Adriana – PS analysis


Villa Adriana Constellation COSMO-SkyMed

Image N° 59

Pass Ascending


Polarization HH


End Date 2016-08-10

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Villa Adriana – single monument statistics


Villa Adriana

Monument Tre Esedre

PS number 60

Stable PS 57

Unstable PS 3

Vmax 1.0 mm/year

Vmin -6.4 mm/year

Vaverage 0.06 mm/year

St. Dev 1.51

Monument Terme con Heliocaminus

PS number 115

Stable PS 115

Unstable PS 0

Vmax 1.4 mm/year

Vmin -0.85 mm/year

Vaverage 0.21 mm/year

St. Dev 0.42

Stable

Potentially in danger

PS are considered stable if -1.5 ≤ vel (mm/year) ≤ 1.5. A monument is considered potentially in danger if it contains at least an unstable PS

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Villa Adriana – PS analysis ‐ Tre Esedre monument


Villa Adriana

AB

C

-35

-30

-25

-20

-15

-10

-5

02013-01-01 2014-01-01 2015-01-01 2016-01-01 2016-12-31

A

vLOS(A) = -6.4 mm/yearvLOS(B) = -6.3 mm/yearvLOS(C) = -6.4 mm/year

-35

-30

-25

-20

-15

-10

-5

02013-01-01 2014-01-01 2015-01-01 2016-01-01 2016-12-31

A B

-35

-30

-25

-20

-15

-10

-5

02013-01-01 2014-01-01 2015-01-01 2016-01-01 2016-12-31

A B C

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Villa Adriana – PS analysis ‐ Tre Esedre monument


AB

Other unstable PS

vLOS(A) = -3.2 mm/yearvLOS(B) = -3.4 mm/year

Comparison with COSMO-SkyMed 2011-2013 data processed in the framework of «PST» (Piano Straordinario di Telerilevamento) and available through the Italian National Cartographic Portal

-15

-10

-5

0

52010-12-03 2011-12-03 2012-12-02 2013-12-02 2014-12-02

A B

vLOS(A,2011) = -3.6 mm/yearvLOS(A,2012) = -1.9 mm/yearvLOS(A,2013) = -6.1 mm/year

vLOS(B,2011) = -3.3 mm/yearvLOS(B,2012) = -2 mm/yearvLOS(B,2013) = -6.5 mm/year

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Tre Esedre: Steps after PS analysis


According to ArTeK protocol following steps will be performed in the near future:

1. On site survey and inspection to identify elements potentially affected by detected displacements• UAV survey activation for inspection of higher parts of the monument• Damage assessment according to the MiBACT/ISCR Carta del Rischio Methodology

2. On site sensors (e.g. crack‐meters, GNSS receivers, inclinometers, accelerometers) deployment to monitor criticalities identified in step 1

After satellite PS analysis and comparison with already obtained results the “Tre Esedre” monument has been detected as “potentially in danger”.

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H TivoliPS analysis overview from ArTeK portal


TivoliCOSMO-SkyMed data analysis put in evidence two areas characterized by slow displacements.A. Displacements of a portion of a

slope towards the bed of Aniene river (1.5-3 mm/year)

B. Displacement in the area of a road underpass (3-6 mm/year)

A

B

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H TivoliOn demand analysis over «Tempio di Vesta»

16La Missione COSMO-SkyMed: Stato dell’Arte, Applicazioni e Prospettive FutureCOSMO-SkyMed data analysis did not show any unstable PS near the temple

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Baia pilot site


Today…

Bradyseism:Gradual uplift (positive bradyseism) or descent (negative bradyseism) of part of the Earth's surface

Baia yesterday…

…Baia today

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H Baia pilot siteSBAS technique – a preliminary Sentinel‐1 analysis before requesting COSMO‐SkyMed data


Period of observation: October 2014 – April 2016 (Sentinel-1)

108 mm

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Interferometric analysis (PS technique)

Baia: underwater archaeological park


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SIMONA project: Surveillance – Search & RescueIts results useful for archaeological underwater park monitoring

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SIMONA project: Satellite radar‐AIS data fusionDetection of collaborative/non collaborative ships

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H COSMO‐SkyMed constellationStrengths and Weaknesses for CH monitoring

• Weaknesses• Low prices available only through institution intermediation or ASI/ESA projects• Low spatial coverage of Spotlight‐2 data: long datasets available only through

selected time span in specific areas• Not always useful for interferometry

• Presence of “holes” into archive data series, probably due to satellite acquisition plan changes. It prevents from the analysis of a consecutive data stack


• Strengths• High national stripmap HI coverage thanks to «map Italy» program• Very high resolution available (better than 1 meter)• Tasking capabilities

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Recommendations for future generations of satellites

• To plan acquisitions of CSG also aiming at complementarity with already available CSK satellites, thus allowing interferometry through CSK and CSG

• To plan quad pol acquisition over Italy at defined time span, like Map Italy program for CSK


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Thank you


Antonio Monteleone (project manager)[email protected]

Nicole Dore (deputy manager)[email protected]

Luca Benenati (data analyst)[email protected]

Lorenzo Bernardi (data analyst)[email protected]

mailto:[email protected]




Documents

Sistema di monitoraggio con COSMO‐SkyMed e gestione … monitoring of sites. ... o Implementation of site-specific risk and decision support models, based ... Tivoli – Villa Adriana