Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

ERS-1: A European success

1991-2000: From an engineering success to

the development of sophisticated applications

ERS-1: A European success

1991-2000: From an engineering success to

the development of sophisticated applications

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

1991: The evidence of an engineering

achievement

1991: The evidence of an engineering

achievement Successful commissioning

phase

All instruments are working nominally, sometimes exceeding the specifications

Successful commissioning phase

All instruments are working nominally, sometimes exceeding the specifications

• First SAR images: excellent quality

• First low bit rate data: all nominal

• First ATSR images: Kuwait on fire

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

Frascati - Castelli Romani (ERS SAR multitemporal)Scatterometer - Wind speed (July 1992)

1992: The start of a scientific success 1992: The start of a scientific success

Watching the seas

Watching the land

Watching the ice

First ERS Symposium:

Cannes– Big interest (180 papers, 450 participants)– Confirmation of the quality of the data provided by the instruments

First ERS Symposium:

Cannes– Big interest (180 papers, 450 participants)– Confirmation of the quality of the data provided by the instruments

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

ERS-1 + SPOT

1993: The beginning for an increasing number of applications

1993: The beginning for an increasing number of applications

A major EO milestone:ERS-1 & SAR Interferometry

• ERS-1 differential interferometry reaches the cm precision («Bonn experiment»)• Demonstration with Landers earthquake

A major EO milestone:ERS-1 & SAR Interferometry

• ERS-1 differential interferometry reaches the cm precision («Bonn experiment»)• Demonstration with Landers earthquake

Second ERS Symposium: Hamburg

315 papers, 600 participants

Second ERS Symposium: Hamburg

315 papers, 600 participants

Flooding: Mississipi river during Summer 1993Flooding: Mississipi river during Summer 1993

Oil slick: La Coruna (E)(December 92 - January 93)

Oil slick: La Coruna (E)(December 92 - January 93)

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

From D.T. Sandwell & W.H.F. Smith

1994: Monitoring the Earth1994: Monitoring the Earth

First Pilot Projects Workshop: Toledopaved the way for applications

First Pilot Projects Workshop: Toledopaved the way for applications

The geodetic missionAn unprecedented view of the Earth

seafloor

The geodetic missionAn unprecedented view of the Earth

seafloor

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

1995: The breakthrough of the tandem mission1995: The breakthrough of the tandem mission

Bachu (China)

DEM with 10 mvertical precision are achievable

ERS tandem mission(July 1995 - July 1996)

ERS tandem mission(July 1995 - July 1996)

Second Pilot Projects Workshop: Londonprogressing applications results

Second Pilot Projects Workshop: Londonprogressing applications results

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

Iceland: Vatnajokull eruptionIceland: Vatnajokull eruption

1996: Exploiting the potential of the tandem mission

1996: Exploiting the potential of the tandem mission

The tandem coherence provides an additional information level for land use studies.

A strong complementarity with optical data is recognised.

The tandem coherence provides an additional information level for land use studies.

A strong complementarity with optical data is recognised.

ERS tandem

SPOT

Fringe Workshop: Zurichthe first workshop dedicated to

interferometry

Fringe Workshop: Zurichthe first workshop dedicated to

interferometry

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

1997: Contributing to the observation of El Nino1997: Contributing to the observation of El Nino

Temperature anomaly derived from ERS-2 and

ERS-1 ATSR data

Temperature anomaly derived from ERS-2 and

ERS-1 ATSR data

Third ERS Symposium: Florence420 papers, 700 participants

Third ERS Symposium: Florence420 papers, 700 participants

October 1997

SAR tandem data used to monitor forest fires

in Indonesia

SAR tandem data used to monitor forest fires

in Indonesia

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

1998: ERS-1 still effective 1998: ERS-1 still effective

Mitch hurricane: ERS-1 together with ERS-2 and Spot satellites provides map of

the damages

Mitch hurricane: ERS-1 together with ERS-2 and Spot satellites provides map of

the damages

Okmok volcano (Alaska): ERS-1 observes the volcano inflation during the eruption.

ERS-1 data regularly used to monitor volcanoes

around the world.

Okmok volcano (Alaska): ERS-1 observes the volcano inflation during the eruption.

ERS-1 data regularly used to monitor volcanoes

around the world.

USGS

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

1999: Exploiting 8 years of ERS-1 archived data1999: Exploiting 8 years of ERS-1 archived data

Estimated Velocity Field [mm/yr]Pomona (California)

Second Fringe Workshop: LiegeConfirmation of the high value of the ERS-1 SAR data

archive

Second Fringe Workshop: LiegeConfirmation of the high value of the ERS-1 SAR data

archive

New sophisticated technique: permanent point scatterers

• allows to monitor sub-millimetric mouvement of buildings

• used for building collapse in Rome and Foggia (Italy)

New sophisticated technique: permanent point scatterers

• allows to monitor sub-millimetric mouvement of buildings

• used for building collapse in Rome and Foggia (Italy)

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

2000: The last ERS-1 contribution: assessing the French storm trees damages

2000: The last ERS-1 contribution: assessing the French storm trees damages

IGN map(Haguenau forest)

SPOT XS image (from archives)

ERS tandem coherence before the storm

ERS tandem coherence after the

storm

Damages estimate (coherence gradient in pink

tones)

The combination of SAR tandem data provides a quick estimate of the amount of tree damages, after the Christmas French storms.

The combination of SAR tandem data provides a quick estimate of the amount of tree damages, after the Christmas French storms.

Based on Spot Image

coherence products

SERTIT

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

27 July 199127 July 1991

7 March 20007 March 2000

45200 orbits45200 orbits

1.4 million SAR scenes1.4 million SAR scenes

From the first to the last ERS-1 SAR imageFrom the first to the last ERS-1 SAR image

some 3500 scientists using the data

some 3500 scientists using the data

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)Alps

Acquired on 7 March 2000, at 10:00 UTC (orbit number 45200)

Images generated with ERS-1 and ERS-2 data, using the technique of interferometry, made popular by ERS-1.

Both images highlight the outstanding data quality of the ERS-1 satellite until its last moments of operation.

Tyrrhenian Sea

Italy - Tuscan hills (7-8 March 2000)Generated with the ERS Interferometric Quick Look

Last acquired ERS-1 SAR dataLast acquired ERS-1 SAR data

Directorate of Application Programmes DOSTAG 23 May 2000

ERS-1 (1991-2000)

ERS-1: a European successERS-1: a European success