Mapping Floods in Nellore and Chittoor Districts in Andhra Pradesh using Sentinel-1 Satellite Images

Situation report on severe floods caused by heavy rainfall in coastal Andhra Pradesh (India) were analyzed using Legend Map Prepared by: Data Provided by: Sentinel-1 satellite images obtained from European Space Agency. From the observation it is very clear large agriculture areas and rural populations in Nellore and Chittoor were severely affected due to floods. Flood Date : 24 Novembe 2015 Satellite Image : SENTINEL-1 ± From the flood map it is very clear roads, railway lines and houses have been damaged in the heavy rains as water rose to the level of the roofs which is reported by Media and government sources. At least 100 people have 24 Nov. 2015 (Post Disaster) lost their lives in the state due to floods and related incidents. River/Permanent water The depiction and use of boundaries, geographic names and related data shown in these Eight mandals in Chittoor district received 20 cm rainfall since maps are based on the sources they have been drawn from and quoted. These are neither Monday. Some places in Nellore district received as high as 30 cm Roads Places error-free nor do they imply official endorsement or the position of IWMI. rainfall. Railways The highway at Naidupeta-Sullurpeta was also flooded, disrupting Waterways vehicular traffic between Tirupati and Kanchipuram. It is estimated 0 5 10 20 approx. 500km of roadways were damaged due to floods. Kilometers District boundary

s

e

g

a

m

I

1

-

L

E Yellasiri

N

I

T

N

E

S

)

c

(

t

h

g Nayudupeta

i

r

y

p

o

C

NELLORE

Palakuru Thottambabu

Sri Kalahasti Combined 18 February and 18 February 2015 30 September 2015

Sulurupetta CHITTOOR

Varadayyapalaiyam Kaduru Tada

Satellite images of 24 November 2015