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OUR TEST SITES

ARES inherits the test sites flown by APEX and AVIRIS-ng instruments over the past decade, providing a wealth of data to study and, in some cases, time series for change analysis.
OVERVIEW ABOUT APEX IMAGE ACQUISITIONS OVER SWITZERLAND
Image module

Scientific mission

Riparian Study

Total lines

1

Imaging Time (min)

1

FL

110

ASL

3300

Image module

Scientific mission

Total lines

3

Total length (km)

21

Imaging Time (min)

15

Surface area

37 km²

Lateral overlap

15%

Runs width [m]

1800

Pixel Size [m]

1.8

Ref. terrain height (AOI)

260

Flying height (AGL)

3700

Flying height (ASL) [m]

3960

FL

130

Image module

Scientific mission

Total lines

1

Total length (km)

30

Surface area

45 km²

Lateral overlap

Runs width [m]

1500

Pixel Size [m]

1.5

Ref. terrain height (AOI)

∼4000

Flying height (AGL)

3000

Flying height (ASL) [m]

7000

Image module

Scientific mission

Vegetation Study

Total lines

1

Total length (km)

2

Image Time (min)

0.23′

Surface area

1 km²

Lateral overlap

Runs width [m]

2182

Pixel Size [m]

1

Ref. terrain height (AOI)

1600

Flying height (AGL)

1900

Flying height (ASL) [m]

3600

FL

120

Image module

Scientific mission

Riparian Study

Total lines

2

Total length (km)

46

Surface area

114 km²

Lateral overlap

20%

Runs width [m]

2493

Pixel Size [m]

2.5

Ref. terrain height (AOI)

500

Flying height (AGL)

5000

Flying height (ASL) [m]

5500

Image module

Scientific mission

Agriculture

Total lines

1

Total length (km)

2

Image Time (min)

1′

Surface area

3.2 km²

Lateral overlap

Runs width [m]

1400

Pixel Size [m]

1.4

Ref. terrain height (AOI)

600

Flying height (AGL)

2800

Flying height (ASL) [m]

3400

FL

110

Image module

Scientific mission

Cryosphere

Total lines

6

Total length (km)

65

Image Time (min)

40′

Surface area

160 km²

Lateral overlap

>20%

Runs width [m]

2150

Pixel Size [m]

2.2

Ref. terrain height (AOI)

3100

Flying height (AGL)

4300

Flying height (ASL) [m]

7400

FL

240

Image module

Scientific mission

Vegetation Study

Total lines

6

Total length (km)

27

Image Time (min)

32′

FL

215

ASL

6553

Image module

Scientific mission

Total lines

1

Total length (km)

4

Surface area

7 km²

Lateral overlap

20%

Runs width [m]

1745

Pixel Size [m]

1.75

Ref. terrain height (AOI)

2900

Flying height (AGL)

3500

Flying height (ASL) [m]

6400

Image module

Scientific mission

Limnology

Total lines

1

Total length (km)

24

Image Time (min)

6′

Surface area

172.4 km²

Lateral overlap

Runs width [m]

2514

Pixel Size [m]

2.5

Ref. terrain height (AOI)

448

Flying height (AGL)

5252

Flying height (ASL) [m]

5700

FL

180

Image module

Scientific mission

Vegetation Study

Total lines

2

Total length (km)

19

Surface area

40 km²

Lateral overlap

20%

Runs width [m]

2340

Pixel Size [m]

2.3

Ref. terrain height (AOI)

2300

Flying height (AGL)

4700

Flying height (ASL) [m]

7000

Image module

Scientific mission

Forest Study

Total lines

1

Total length (km)

1

Image Time (min)

0.23′

Surface area

1 km²

Lateral overlap

Runs width [m]

2182

Pixel Size [m]

2

Ref. terrain height (AOI)

502

Flying height (AGL)

4200

Flying height (ASL) [m]

4700

FL

160

Image module

Scientific mission

Cryosphere

Total lines

1

Total length (km)

5

Surface area

9 km²

Lateral overlap

Runs width [m]

2040

Pixel Size [m]

2

Ref. terrain height (AOI)

3000

Flying height (AGL)

4000

Flying height (ASL) [m]

7000

Image module

Scientific mission

Vegetation Study

Total lines

7

Total length (km)

43.6

Image Time (min)

41′

Lateral overlap

Runs width [m]

1000

Pixel Size [m]

1.0

Image module

Scientific mission

Vegetation Study

Total lines

3

Total length (km)

25

Image Time (min)

16′

Surface area

45 km²

Lateral overlap

15%

Runs width [m]

1820

Pixel Size [m]

1.8

Ref. terrain height (AOI)

570

Flying height (AGL)

3650

Flying height (ASL) [m]

4250

FL

140

Image module

Scientific mission

Limnology

Total lines

4

Total length (km)

60

Surface area

165 km²

Lateral overlap

15%

Runs width [m]

2743

Pixel Size [m]

2.75

Ref. terrain height (AOI)

500

Flying height (AGL)

5500

Flying height (ASL) [m]

6100

Image module

Scientific mission

Soils study

Total lines

3

Total length (km)

95

Surface area

310 km²

Lateral overlap

15%

Runs width [m]

3241

Pixel Size [m]

3.2

Ref. terrain height (AOI)

560

Flying height (AGL)

6500

Flying height (ASL) [m]

7000

Image module

Scientific mission

Total lines

4

Total length (km)

15

Surface area

60 km²

Lateral overlap

20%

Runs width [m]

903

Pixel Size [m]

0.9

Ref. terrain height (AOI)

910

Flying height (AGL)

1820

Flying height (ASL) [m]

2730

Image module

Scientific mission

Agriculture

Total lines

1

Total length (km)

13

Image Time (min)

3′

Surface area

45 km²

Lateral overlap

Runs width [m]

2500

Pixel Size [m]

2.5

Ref. terrain height (AOI)

470

Flying height (AGL)

4530

Flying height (ASL) [m]

5000

FL

165

Image module

Scientific mission

Cryosphere

Total lines

2

Total length (km)

12

Surface area

20 km²

Lateral overlap

25%

Runs width [m]

1646

Pixel Size [m]

1.65

Ref. terrain height (AOI)

3050

Flying height (AGL)

3300

Flying height (ASL) [m]

6350

Image module

Scientific mission

Agriculture

Total lines

1

Total length (km)

3

Surface area

4.1 km²

Lateral overlap

Runs width [m]

1346

Pixel Size [m]

1.35

Ref. terrain height (AOI)

500

Flying height (AGL)

2700

Flying height (ASL) [m]

3200

Image module

Scientific mission

Riparian Study

Total lines

2

Total length (km)

14

Image Time (min)

8′

Surface area

20.5 km²

Lateral overlap

Runs width [m]

1496

Pixel Size [m]

1.5

Ref. terrain height (AOI)

879

Flying height (AGL)

3000

Flying height (ASL) [m]

3960

FL

130

Image module

Scientific mission

Riparian Study

Total lines

3

Total length (km)

22

Image Time (min)

15′

Surface area

32 km²

Lateral overlap

Runs width [m]

1500

Pixel Size [m]

1.5

Ref. terrain height (AOI)

631

Flying height (AGL)

3000

Flying height (ASL) [m]

3660

FL

120

Image module

Scientific mission

Riparian Study

Total lines

1

Total length (km)

8

Image Time (min)

3′

Surface area

13 km²

Lateral overlap

Runs width [m]

1500

Pixel Size [m]

1.5

Ref. terrain height (AOI)

872

Flying height (AGL)

3000

Flying height (ASL) [m]

3960

FL

130

Image module

Scientific mission

Vegetation Study

Total lines

12

Total length (km)

412

Image Time (min)

166′

Surface area

520 km²

Lateral overlap

45%

Runs width [m]

1800

Pixel Size [m]

1.8

Ref. terrain height (AOI)

2264

Flying height (AGL)

3800

Flying height (ASL) [m]

6000

FL

190

Image module

Scientific mission

Total lines

2

Total length (km)

5

Surface area

Lateral overlap

Runs width [m]

∼1000

Pixel Size [m]

∼1.0

Ref. terrain height (AOI)

∼1700

Flying height (AGL)

2600

Flying height (ASL) [m]

4300

FL

140

Image module

Scientific mission

Total lines

3

Total length (km)

20

Image Time (min)

15′

Surface area

7 km²

Lateral overlap

20%

Runs width [m]

1000

Pixel Size [m]

1

Ref. terrain height (AOI)

570

Flying height (AGL)

2000

Flying height (ASL) [m]

2740

FL

90

Image module

Scientific mission

Total lines

18

Total length (km)

539

Image Time (min)

231′

Surface area

868 km²

Lateral overlap

20%

Runs width [m]

2287

Pixel Size [m]

2.3

Ref. terrain height (AOI)

900

Flying height (AGL)

4600

Flying height (ASL) [m]

5500

FL

180

Image module

Scientific mission

Total lines

10

Total length (km)

337

Surface area

882 km²

Lateral overlap

15%

Runs width [m]

2618

Pixel Size [m]

2.62

Ref. terrain height (AOI)

1050

Flying height (AGL)

5250

Flying height (ASL) [m]

6300

Image module

Scientific mission

Zurich Air Quality (NOx)

Total lines

4

Total length (km)

96

Image Time (min)

40′

Surface area

238 km²

Lateral overlap

15%

Runs width [m]

2488

Pixel Size [m]

2.49

Ref. terrain height (AOI)

508

Flying height (AGL)

4990

Flying height (ASL) [m]

5500

FL

180

Image module

Scientific mission

Water study

Total lines

6

Total length (km)

160

Surface area

500 km²

Lateral overlap

15%

Runs width [m]

3241

Pixel Size [m]

3.2

Ref. terrain height (AOI)

506

Flying height (AGL)

6500

Flying height (ASL) [m]

7000

FL

230

Image module

Scientific mission

Soils study

Total lines

3

Total length (km)

56

Image Time (min)

38′

Surface area

180 km²

Lateral overlap

20%

Runs width [m]

1000

Pixel Size [m]

1.0

Ref. terrain height (AOI)

506

Flying height (AGL)

6500

Flying height (ASL) [m]

7000

FL

230

Image module
Airborne research has increasingly gained in importance over the past few years. The ARES infrastructure will fill an important gap between in-situ and space-based observations.