Location of landslides triggered by the rainfall in …...Location of landslides triggered by the...

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Location of landslides triggered by the rainfall in August 2018 in parts of Dakshina Kannada, Kodagu, Chikmagalur and Hassan districts, Karnataka Based on the analysis of Post Event multitemporal high resolution satellite data DSC / NDEM National Remote Sensing Centre, ISRO Dept. of Space, Govt. of India Hyderabad- 500 037 E-Mail: [email protected] www.nrsc.gov.in nrsc Landslides were triggered in the Kodagu and Dakshina Kannada districts of Karnataka due to heavy rain in the 3rd week of August, 2018. Some people were killed and several others are missing due to this event. Several roads have been blocked due to the landslides. The hill slopes in this area have thick soil cover, which makes it prone to landslide after heavy rainfall. It appears that the landslides are mainly debris slides and debris flows. Location Map Pre Landslide: Satellite: Resourcesat-2 Sensor: LISS IV FMx (5.8 m) Date of Pass: 03-March-2018 19-February-2018 This product is prepared on rapid mapping mode for immediate use and sharing amongst official agencies. This provides preliminary results. There could be more landslides in this area. All geographic information has limitations due to the scale, resolution, cloud cover, date and interpretation of the original source materials. No ground verification is done. MAP ID: 2018/04 DISASTER EVENT ID: 06-LS-2018-Karnataka Post event satellite images such as were analysed in parts of Dakshina Kannada District of Karnataka. Majority of the image is having thick cloud cover. Therefore few cloud free pockets of the image were analysed for value addition. A total of 120 new landslides (Chikmagalur, Hassan, Kogadu and Dakshina Kannada) triggered by the rainfall event in Aug, 2018 were mapped. KARNATAKA TAMIL NADU ANDHRA PRADESH TELANGANA KERALA MAHARASHTRA GOA Satellite Observations About the Event Satellite data used Other data used Post Landslide: Satellite: Pleiades (0.5 m): 22-August-2018 Kompsat (4 m): 22-August-2018 SPOT-7 (1.5 m): 23-August-2018 Pleiades (0.5 m): 25-August-2018 Worldview-2 (0.46 m): 25-August-2018 SPOT-6 (1.5 m): 01-September-2018 Pleiades (0.5 m): 01-September-2018 GF-2 (3.2 m) : 02-September-2018 For official use ! ! ! ! ! ! ! ! Virajpet Mercara Puttur Belur Sulya Mudigere Belthangadi Alur Somvarpet Buntwal Sakaleshpur Mangalore Hassan Arakalgud Chikmagalur Sringeri 9 8 7 6 5 4 3 2 1 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 75 74 73 72 70 68 66 65 61 60 59 56 53 52 51 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 120 119 117 116 115 114 112 111 110 109 108 107 106 104 103 102 101 100 SULYA Puttur Bantval MERCARA Beltangdi Samvarpet MANGALORE Virarajendrapet 76°0'0"E 75°30'0"E 75°0'0"E 13°0'0"N 13°0'0"N 12°30'0"N 12°30'0"N 12°0'0"N 12°0'0"N Date of Issue :07.09.2018 Note: When publishing this map as part of any report, source may be indicated as "Location of landslides triggered by the rainfall in August 2018 in parts of Dakshina Kannada, Kodagu Chikmagalur and Hassan districts, Karnataka" dated 07.09.2018 DSC/NDEM Map no : 2018/04, NRSC/ISRO, Hyderabad NDEM Base layers, RGNDWM base layers μ 56 L L V Landslide Vegetation The red box shows the extent of Pleiades data. Most part of the image is cloudy. 69 67 L GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018) 0 200 100 M 0 100 50 M Landslide no. 67 & 69 Landslide no. 56 Disclaimer V V 0 10 5 Km L V GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018) 66 62 61 L 0 100 50 M Landslide no. 61, 62 & 66 V GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018) L V L V 7 L 0 100 50 M Landslide no. 7 V GF-2 (02 Sept 2018) Resourcesat-2 FMx (3 March 2018) V Legend Landslides Taluk Boundary Districts Chikmagalur Dakshina Kannada Hassan Kodagu ! City / Town name Railway Line National Highway State Highway Satellite Footprint

Transcript of Location of landslides triggered by the rainfall in …...Location of landslides triggered by the...

Page 1: Location of landslides triggered by the rainfall in …...Location of landslides triggered by the rainfall in August 2018 in parts of Dakshina Kannada, Kodagu, Chikmagalur and Hassan

Location of landslides triggered by the rainfall in August 2018in parts of Dakshina Kannada, Kodagu, Chikmagalur and

Hassan districts, KarnatakaBased on the analysis of Post Event multitemporal high resolution satellite data

DSC / NDEMNational Remote Sensing Centre, ISRO Dept. of Space, Govt. of IndiaHyderabad- 500 037E-Mail: [email protected] nrsc

Landslides were triggered in the Kodagu and Dakshina Kannada districts of Karnataka due to heavy rain in the 3rd week of August, 2018. Some people were killed and several others are missing due to this event. Several roads have been blocked due to the landslides. The hill slopes in this area have thick soil cover, whichmakes it prone to landslide after heavy rainfall. It appears that the landslides are mainly debris slides and debris flows.

Location Map

Pre Landslide:Satellite: Resourcesat-2Sensor: LISS IV FMx (5.8 m)Date of Pass: 03-March-2018 19-February-2018

This product is prepared on rapid mapping mode for immediate useand sharing amongst official agencies. This provides preliminary results.There could be more landslides in this area.All geographic information has limitations due to the scale, resolution, cloud cover,date and interpretation of the original source materials. No ground verification is done.

MAP ID: 2018/04DISASTER EVENT ID: 06-LS-2018-Karnataka

Post event satellite images such as were analysed in parts of Dakshina Kannada District of Karnataka. Majority of the image is having thick cloud cover. Therefore few cloud free pockets of the image were analysed for value addition. A total of 120 new landslides (Chikmagalur, Hassan, Kogadu and Dakshina Kannada)triggered by the rainfall event in Aug, 2018 were mapped.

KARNATAKA

TAMIL NADU

ANDHRA PRADESH

TELANGANA

KERALA

MAHARASHTRA

GOA

Satellite Observations

About the Event

Satellite data used

Other data used

Post Landslide:Satellite: Pleiades (0.5 m): 22-August-2018 Kompsat (4 m): 22-August-2018 SPOT-7 (1.5 m): 23-August-2018 Pleiades (0.5 m): 25-August-2018 Worldview-2 (0.46 m): 25-August-2018 SPOT-6 (1.5 m): 01-September-2018 Pleiades (0.5 m): 01-September-2018 GF-2 (3.2 m) : 02-September-2018

For official use

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!

!

Virajpet

Mercara

Puttur

Belur

Sulya

Mudigere

Belthangadi

Alur

Somvarpet

Buntwal

Sakaleshpur

Mangalore Hassan

Arakalgud

ChikmagalurSringeri

9 876

54

321

999897 96

9594

93 92919089 8887 86 8584

83 8281 80

79 7877 757473

7270 68

6665 6160 59 5653 5251 4948 4746 4544 43 42 4140

3938 37 363534 333230

29

2827

26 25 242322 2120 1918171615

1413 12

11 10

120119 117116

115 114

112 111110109 108107

106104

103

102101

100

SULYA

Puttur

Bantval

MERCARA

Beltangdi

Samvarpet

MANGALORE

Virarajendrapet

76°0'0"E75°30'0"E75°0'0"E

13°0

'0"N

13°0

'0"N

12°3

0'0"N

12°3

0'0"N

12°0

'0"N

12°0

'0"N

Date of Issue :07.09.2018

Note: When publishing this map as part of any report, source may be indicated as "Location of landslides triggered by the rainfall in August 2018 in parts of Dakshina Kannada, Kodagu Chikmagalur and Hassan districts, Karnataka" dated 07.09.2018 DSC/NDEM Map no : 2018/04, NRSC/ISRO, Hyderabad

NDEM Base layers, RGNDWM base layers

µ56 L

LV

LandslideVegetation

The red box shows the extent of Pleiades data. Most part of the image is cloudy.

69

67L

GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018)

0 200100M

0 10050M

Landslide no. 67 & 69

Landslide no. 56

Disclaimer

V

V

0 105Km

L

V

GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018)

66

6261 L

0 10050M

Landslide no. 61, 62 & 66

V

GF-2 (02 Sept 2018) Resourcesat-2A FMx (19 Feburary 2018)

L

V

L

V

7L

0 10050M

Landslide no. 7

V

GF-2 (02 Sept 2018) Resourcesat-2 FMx (3 March 2018)

V

LegendLandslides

Taluk Boundary

DistrictsChikmagalurDakshina KannadaHassanKodagu

! City / Town nameRailway LineNational HighwayState HighwaySatellite Footprint