agrisar 2007 - airborne sar & optics campaigns …04... · folie 1 [email protected] ......

Folie [email protected] - 15.10.2007

AGRISAR 2007 - Airborne SAR & Optics Campaigns foran improved monitoring of agri. processes & practices

Irena Hajnsek & AGRISAR Team (124 participants)Microwaves and Radar Institute, German Aerospace Center

Folie 2Microwaves and Radar Institute

AGRISAR Campaign Objectives

The AGRISAR 2006 campaign aimed to collect in-situ, airborne SAR and opticalmeasurements, as well as satellite data in support of decisions being taken onsatellite instrument configurations for the first Sentinel Missions. In addition it aims toprovide an important database for the study of longer term mission concepts.

To assess the impact of Sentinel-1 and Sentinel-2 sensors and mission characteristics for land applications (land use mapping, parameter retrieval);To provide a basis for quantitative assessment of sensor or mission trade-off studies, e.g. spatial and radiometric resolution, revisit time;To simulate Sentinel-1 and Sentinel-2 image products over the land;To define user and system requirements for the Sentinel-3 sensor.


AGRISAR Campaign Requirements

Main campaign requirements:Joint data acquisition (ground / airborne (optical - SAR) measurements)Data collection over a whole vegetation growth periodFrequency of data collection similar to the planned Sentinel missionsAirborne sensor specifications:

C-band data acquisition & Sentinel-1 simulation (DLR’s E-SAR)Hyperspectral data acquisition & Sentinel-2 simulation (ITRES CASI)Thermal Infrared data acquisition & Sentinel-3 simulation (INTA AHS)


Selected Test Site for AGRISAR: Demmin – N/E GermanyCriteria for the selection of the Demmin Test Site:

Long history of parameter collection (validation of RS algorithms: soil and vegetation sampling)

Ongoing own research activities at DLRwell-established co-operation with local farmers

Representative for mid-european agricultural sitesBig field sizes (up to 10ha)10 agro-meterological stations


East/West

North

-Eas

t/So

uth-

Wes

t


Topic 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31Month Mai June July Aug.

Days 17.04-23.04.

24.04.-30.04.

01.05.-07.05.

08.05.-14.05.

15.05.-21.05.

22.05.-28.05.

29.05.-04.06.

05.06.-11.06.

12.06.-18.06.

19.06.-25.06.

26.06.-02.07.

03.07.-09.07.

10.07.-16.07.

17.07.-23.07.

24.07.-30.07.

31.07.-06.08.

IN-SITU

DLR-DFD/ ZALF/GEO X X X X X X X X X X X X

Uni of Kiel X X X X X X X X X X XUni of

Valencia X X X

Uni Naples X XUni. Berlin X X

Uni. Alicante X XITC X

ISSIA X XUni Ghent X X X

TUD X XLMU X X XFSU X X

AIRBORNE

DLR-HR/FB(E-SAR) 3x X X X X 2x X X 2x X X X

INTA/ITRES(AHS/CASI) X X

Data Acquisition – Ground and Airborne Data


Summary Ground ActivitiesCrop Type Field No.

Wheat 9

Rape 6

Barely 3

Corn 1

Sugar beet 2

Total 21

Continuous Campaign:Type Param. SamplesSoil 2

9

11

3285

Vege 2014

Total 5299

Type Param. SamplesSoil 6

6

12

4662

Vege 978

Total 5640

Intensive Campaigns (three):

+ 100 fields investigated for the land use map


Measured Ground ParametersMeasured soil parameter:

Soil structure (organic matter, soil texture, lime content, soil colour)Soil hydraulic parametersSoil moisture (TDR, gravimetrically, fieldspectro., soil moisture station)Surface Roughness (Laser, photogrammetry)

DLR-DFD, ZALF, Geo-Inf, Uni-Kiel, FSU, LHWM, ISSIA, DTU, Uni Alicante, Uni Valencia, LMU, Unina

Soil Moisture Station (field 250)

Laser-Profiler (field 102)


Measured Ground Parameters

Measured vegetation parameter:Leaf pigmentsBiomass (dry matter, plant water content)LAIChlorophyllPhenologyVege. parameter (vege. height, crop density, row distance, crop coverage (photo),)

DLR-DFD, ZALF, Geo-Inf, Uni-Kiel, FSU, LHWM, ISSIA, DTU, Uni Alicante, Uni Valencia, LMU, Unina

(field 222)


Atmospheric Data Acquisition (during 2nd & 3rd IC.)Sunphotometer (Uni Valencia):

Continous measurements (three month)Aureole Sunphotometer FUBISS (FUB):

Measurements through the week for the 2nd and 3rd ICRadiosounding (DWD):

Measurements before the 2nd and 3rd IC

Radiosounding

Sunphotometer


Ground Radiometric Measurements (during 2nd & 3rd IC.)

3 x ASD Field spectrometer (Uni Valencia, FSU, Unina)Measurements through the week for the 2nd and 3rd IC

Calibration & field measurementsThermal Infrared (Uni Valencia)

Measurements through the week for the 2nd and 3rd ICSeveral instruments available

ASD (Farmhouse)Thermal Infrared (field 222)


Atmospheric Data Acquisition (during 2nd & 3rd IC.)Bowen-Ratio Station (LHWM):

Continuous measurements (3.5 month)Scintillometer (LAS) (ITC):

Measurements available from the 3rd ICGoniometer (LAS) (ITC):

Measurements available from the 3rd IC

Goniometer (field 102)

Bowen-Ratio (field 250)

LAS (field 250)


CR for (differential) Extinction MeasurementsCrop type Field CR’s Initial growth stage

Maize 222 4 Almost bare soil, 5-10 cm high

Wheat 230 3+1 Green, 55-65 cm high

Rape 140 2 Mature, > 1.5 m high

10 CR’s deployed in 3 different fields (Uni Alicante)Different growth stagesOriented to the radarDeployed on 6 June (2nd intensive campaign)Recovered on 11 July (before harvest, after 3rd campaign)

Corn fieldCorn fieldRape field Wheat field


Ground Campaign Summarised in Acquisition Matrix: Data Acquisition Report

crop winter wheat winter barley winter rape sugar beet maize(silo)

grassland

field # 230 250 391 440 450 101 140 102 460 222 823

date

1st Intensive Campaign

19.04.2006 at 3 locations: soilmoisture0-5cm and 5-10cm, cropcoverage(estimated), vegetationheight, photos, biomass(wet and dry), LAI, chlorophyll, phenology, shootsper m, ZALF/DLR, TDR,Uni Gent

at 3 locations: soilmoisture0-5cm and 5-10cm, vegetation height, photos, biomass(wet and dry), phenology, plantsper m2 / shootsper m, UNI Kiel, TDR, Uni Gent

surfacerouhnessmeasurementswith a laserprofilerof ESA, ISSIA, TDR,Uni Gent

at 3 locations: soilmoisture0-5cm and 5-10cm, vegetationheight, photos, biomass(wet and dry), phenology, plantsper m2 / shootsper m; at 2 loc.: surfaceroughness(photogrammetric), UNI Kiel

at 3 locations: soilmoisture0-5cm and 5-10cm, cropcoverage(estimated), vegetationheight, photos, biomass(wet and dry), LAI, chlorophyll, phenology, shootsper m, ZALF/DLR

at 3 locations: soilmoisture0-5cm and 5-10cm, vegetation height, photos, biomass(wet and dry), phenology, plantsper m2 / shootsper m, surfaceroughness(photogrammetric), UNI Kiel

at 3 locations: soilmoisture0-5cm and 5-10cm, cropcoverage(estimated), vegetationheight, photos, biomass(wet and dry), LAI, chlorophyll, phenology, plantsper m2, ZALF/DLR

at 3 locations: soilmoisture0-5cm and 5-10cm, surfaceroughness(photogrammetric)UNIKiel surfacerouhnessmeasurementswith a laserprofilerof ESA, ISSIA, TDR, Uni Gent

at 3 locations: soilmoisture0-5cm and 5-10cm, cropcoverage(estimated), vegetationheight, photos, DLR surfaceroughness(photogrammetric), UNI Kiel surfacerouhnessmeasurementswith a laserprofiler of ESA,ISSIA

at 3 locations: soilmoisture0-5cm and 5-10cm, cropcoverage(estimated), vegetation height, photos, DLR


AIRBORNE DATA ACQUISITIONRadar Data Acquisition (DLR-HR):

16 flights during four month with around 100 GB of data acquiredAHS (INTA):

4 flights (6th & 10th June – 4th & 5th July 2006) Data available with different resolutions

CASI (ITRES):4 flights (6th & 10th June – 4th & 5th July 2006) +1 bundle adjustment flight over Neubrandenburg (6th July)

INTA & ITRES & DLR Team


Acquired E-SAR Data for AGRISAR

19/04/

03/05/10/05/16/05/24/05/

08/06/14/06/21/06/

06/07/12/07/26/07/02/08/

05/07/

07/06/

20/04/

Optional:

1. Pseudo quad pol @ C-band is also available !

2. Two exemplary Sentinel-1 simulated data sets are available!


DATE FLIGHT LINE FILE TRUE HEADING TIME UTC REMARKS

1st Optical Campaign

2006-JUNE-06 AHS-P4 04 022 12:33

2006-JUNE-06 AHS-P3 05 202 12:44

2006-JUNE-06 AHS-P2 06 090 12:57

2006-JUNE-06 AHS-P1 07 270 13:06

2006-JUNE-06 CASI-P6 08 022 13:21

2006-JUNE-06 CASI-P4 09 202 13:32

2006-JUNE-06 CASI-P5 10 022 13:42

2006-JUNE-06 CASI-P5 11 202 13:53

2006-JUNE-06 CASI-P3 12 090 14:05

2006-JUNE-06 CASI-P1 13 270 14:17

2006-JUNE-06 CASI-P2 N/A 090 14:27AHS image not available for this

line

2006-JUNE-06 AHS-P5 14 270 14:42

2006-JUNE-06 AHS-P6 15 202 14:53

2006-JUNE-07 AHS-P4 16 022 10:11

2006-JUNE-10 AHS-P4 17 022 08:27

2006-JUNE-10 AHS-P3 18 202 08:37

2006-JUNE-10 AHS-P2 19 090 08:48

2006-JUNE-10 AHS-P1 20 270 08:58

2006-JUNE-10 AHS-P5 21 090 09:13

2006-JUNE-10 AHS-P6 22 202 09:25

Acquired Optical Data forAGRISAR

1.Optical Campaign:

7 flight lines from CASI

13 flight lines from AHS


DATE FLIGHT LINE FILE TRUE HEADING TIME UTC REMARKS

2nd Optical FlightCampaign

2006-JULY-04 AHS-P2 23 270 08:58

2006-JULY-04 AHS-P1 24 090 09:06

2006-JULY-04 AHS-P4 25 202 09:16

2006-JULY-04 AHS-P3 N/A 022 09:27

2006-JULY-04 AHS-P3 26 270 09:35 reflight

2006-JULY-04 CASI-P1 27 090 09:52

2006-JULY-04 CASI-P2 28 270 10:02

2006-JULY-04 CASI-P3 29 090 10:12

2006-JULY-04 CASI-P4 30 202 10:24

2006-JULY-04 CASI-P5 31 022 10:33

2006-JULY-04 CASI-P6 32 202 10:43

2006-JULY-04 AHS-P5 33 090 10:54

2006-JULY-04 AHS-P6 34 022 11:03

2006-JULY-05 AHS-P2 35 270 08:18

2006-JULY-05 AHS-P1 36 090 08:28

2006-JULY-05 AHS-P4 37 202 08:43

2006-JULY-05 AHS-P3 38 020 08:52

2006-JULY-05 CASI-P1 39 090 09:09

2006-JULY-05 CASI-P2 40 270 09:19

2006-JULY-05 CASI-P3 41 090 09:31

2006-JULY-05 CASI-P4 42 202 09:43

2006-JULY-05 CASI-P5 43 020 09:54

2006-JULY-05 CASI-P6 44 202 10:05

2006-JULY-05 CASI-P5 45 090 10:20

2006-JULY-05 CASI-P6 46 202 10:30

Acquired Optical Data for AGRISAR

2.Optical Campaign:

14 flight lines from CASI

11 flight lines from AHS


Interferometric Wide Swath(**) Stripmap

slant range(*) azimuth slant range(*) azimuth

Resolution (SLC)

2.5 m 20 m 2.5 m 5 m

PSLR 25 dB (with spectral weighting function)

NESZ -22 dB (insertion of additional noise as function of off-nadir)

DTAR -22 dB (modification of presumming filter)

Modifications of E-SAR Processing Parameters forSentinel-1 Simulation (Different Polarimetric Combination)

(*) corresponds to 5m ground range @ 30 deg incidence angle

(**) simulated IWS data were distributed to AGRISAR partnersfor the last 2 intensive campaigns


ESAR vs SENTINEL-1 Pol Mode Simulation (IWS)Pauli RGB Image

ESAR

Resolution:

• Gr-Range: 3m• Azimuth: 0.75m

NESZ: -28dB

Sentinel Wide-swath mode

Resolution:

• Gr-Range: 5m• Azimuth: 20m

NESZ: -22dB


SENTINEL-1 Dual-Pol Mode Simulation: Tx=H (IWS)Pauli RGB Image HH VH

Alp

ha (2

-Dim

)

Entropy (2-Dim)


SENTINEL-1 Dual-Pol Mode Simulation: Tx=V (IWS) VV HV

Alp

ha (2

-Dim

)

Entropy (2-Dim)

Pauli RGB Image


Image Example: Sentinel-1 Simulation (RGB=HV-HH-HH)

E-SAR standard (8 looks) Sentinel-1 stripmap (4 looks) Sentinel-1 IWS (4 looks)


Image Example: Sentinel-1 Simulation (RGB=HV-HH-HH)

E-SAR standard(8 azimuth looks)

Sentinel-1 stripmap(4 azimuth looks)

Sentinel-1 IWS (4 range looks)


Available Satellite Data

Radar Data:ALOS-PalSAR L-band Satellite (no quad pol scenes, perhaps some dual pol!)ENVISAT-ASAR C-band Satellite (65 scenes available)

Optical Data:ENVISAT-MERIS (168 scenes available)CHRIS (2 scenes available) Advanced Along-Track Scanning Radiometer (2 scenes available)ATS (38 morning & 40 evening)


AGRISAR: Data AccessGround Data:AGRISAR ftp site

Radar Data:DLR-EOWEB ftp site (all data available)

Optical Data:AGRISAR ftp site


TEAM/Param

SentinelSim

Methodology

Biophysical products Advanced Products Land useclasses

Biom LAI mv ks Vege. struct

chloro Energy budg(LST, etc.)

s-w balance

DLR-HR X X X

DLR-DFD

DTU X X

FSU X X

FUB X

ISSIA X X

ITC X X

LHWM X

LMU X

Uni Ali X

Uni Kiel X

Unina X X X

Uni Val GCU X X

Uni Val RSU X X X X X

Uni Val SRU X

WUR X

INTA X

ITRES X

AGRISAR: Data Evaluation Matrix


Soil Moisture Station Bowen-Ratio Station

Laser-Profiler

Pre-Campaign Meeting


Acknowledgement to the AGRISAR Team

06/06/06

INTA

agrisar 2007 - airborne sar & optics campaigns …04... · folie 1 [email protected] ......

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