Lok Sabha Question No. 3060 (UNSTARRED), answered on 2022-08-04
Subject: Flood Pattern
Ministry: JAL SHAKTI
Asked by: Pradeep Kumar Singh

## GOVERNMENT OF INDIA

## MINISTRY OF JAL SHAKTI,

## DEPARTMENT OF WATER RESOURCES, RIVER DEVELOPMENT & GANGA REJUVENATION

## LOK SABHA UNSTARRED QUESTION NO. 3060

## ANSWERED ON 04.08.2022

## FLOOD PATTERN

## 3060 SHRI PRADEEP KUMAR SINGH

Will the Minister of JAL SHAKTI be pleased to state:

(a) whether the Government has studied any flood pattern during the last three years in the country including Bihar and if so, the details thereof;

(b) whether the Government is using any new technology with respect to tackling floods in the country and if so, the details thereof;

(c) whether the Government has common flood assistance programme to the affected areas in the country, if so, the details thereof and if not, the reasons therefor; and

(d) the details of crop area affected due to floods in the country, State-wise?

## ANSWER

## THE MINISTER OF STATE FOR JAL SHAKTI

( SHRI BISHWESWAR TUDU )

(a) Central Water Commission (CWC) is the nodal organisation entrusted with the task of flood forecasting & early flood warnings in the country. Presently, CWC issues flood forecasts for 332 forecasting stations (199 river level forecast stations & 133 dam/ barrage inflow forecast stations). These stations cover 20 major river basins in 23 States & 2 Union Territories. As per flood forecasting network of CWC, during the last 3 years, in addition to flood prone States of Assam, Bihar, Uttar Pradesh and West Bengal, extreme floods were  witnessed  in  the  States  of  Andhra  Pradesh,  Chhattisgarh,  Kerala,  Karnataka,  Madhya  Pradesh, Maharashtra, Odisha,  Rajasthan, Tamil Nadu and Telangana due to excess rainfall in these States combined with extremely heavy rainfall in short duration.  The flood situation in the State of Bihar for last 3 years is given at Annexure-I.

(b) Flood Hazard Atlases have been prepared by Indian Space Research Organisation (ISRO) in respect of Andhra  Pradesh,  Assam,  Bihar,  Odisha, Uttar  Pradesh  and  West  Bengal.  ISRO  has  developed  long  term cumulative  flood  maps  for  the  States/UT  of Gujarat, Jammu  &  Kashmir,  Karnataka,  Kerala,  Madhya Pradesh, Maharashtra and Tamil Nadu. The flood inundation details as derived from Satellite data are also made available to the stakeholders through the National Database for Emergency Management (NDEM) and Bhuvan Geoportals.

Flood  Forecasting  by CWC  uses  all  the  latest  technology  including  remote-sensing,  Geographical Information System (GIS), Internet, Artificial Intelligence and Machine Learning in development/ running/ formulation and calibration of mathematical models and for providing inundation alerts. CWC is issuing 5day advisory flood forecast at 332 flood and inflow forecasting stations using state-of-art rainfall run off mathematical modelling tools based on rainfall forecast by  IMD and results are shared with stakeholders using  website  https://aff.india-water.gov.in/.  These  forecasts  help  in  better  management  of  floods  by concerned agencies and departments.

(c) The flood management & anti-erosion schemes are planned, investigated and implemented by the State Governments with their own resources as per priority within the State. The Union Government supplements the  efforts  of  the  States  by  way  of  technical  guidance  and  promotional  financial  assistance  for  flood management  in  critical  areas.  To  strengthen  the  structural  measures  of  flood  management,  Ministry  had implemented Flood Management Programme (FMP) during XI & XII Plan for providing central assistance to States for works related to flood control, anti-erosion, drainage development, anti-sea erosion, etc. which subsequently continued as a component of "Flood Management and Border Areas Programme" (FMBAP) for the period from 2017-18 to 2020-21 and has been further extended up to September 2022. So far, central assistance  amounting  to  Rs.  6,686.79  crore  has  been  released  to  States/UTs  under  this  programme  since inception.

(d) The  details  of  crop  area  affected  due  to  heavy  rain  and  floods  compiled  by  CWC  after  receipt  of confirmation from respective States for the period from 2018 to 2020 is given in Annexure-II.

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## ANNEXURE REFERRED TO IN REPLY OF PART (a) OF LOK SABHA UNSTARRED QUESTION NO.3060 TO BE ANSWERED ON  04.08.2022 REGARDING "FLOOD PATTERN".

## Summary of Flood Situation in Bihar from 2019-2021

|   Year |   No. of Flood Forecasting Station flowed in Extreme Flood |   No. of monitoring Station ( other than FF ) flowed in Extreme Flood |   No. of FF Station flowed in Severe Flood | No. of forecast issued   |   No. of forecast within limit |   %age of accuracy (%) |
|--------|------------------------------------------------------------|-----------------------------------------------------------------------|--------------------------------------------|--------------------------|--------------------------------|------------------------|
|   2019 |                                                          1 |                                                                     3 |                                         32 | 2,186                    |                           2155 |                  98.58 |
|   2020 |                                                          3 |                                                                     6 |                                         28 | 3,223                    |                           3192 |                  99.04 |
|   2021 |                                                          2 |                                                                     2 |                                         33 | 3,317                    |                           3248 |                  97.92 |

## Extreme Flood Situation ( Above Highest Flood Level ):

Flood Forecasting Stations Flowed in Extreme Flood Situation in Bihar during (2019-2021)

| Sl.   | State   | District    | River       | Station     | Period     | Period     |
|-------|---------|-------------|-------------|-------------|------------|------------|
| No    |         |             |             |             | From       | To         |
| 2019  |         |             |             |             |            |            |
| 1     | Bihar   | Madhubani   | Kamlabalan  | Jhanjharpur | 14/07/2019 | 14/07/2019 |
| 2020  |         |             |             |             |            |            |
| 1     | Bihar   | Gopalganj   | Gandak      | Dumariaghat | 23/07/2020 | 25/07/2020 |
| 2     | Bihar   | Muzzafarpur | Gandak      | Rewaghat    | 24/07/2020 | 25/07/2020 |
| 3     | Bihar   | Samastipur  | BurhiGandak | Rosera      | 31/07/2020 | 05/08/2020 |
| 2021  |         |             |             |             |            |            |
| 1     | Bihar   | Patna       | Ganga       | Hatidah     | 13/08/2021 | 19/08/2021 |
| 2     | Bihar   | Bhagalpur   | Ganga       | Bhagalpur   | 16/08/2021 | 19/08/2021 |

In 2022 flood season till June 2022, 1 station Taibpur on river Mahananda in Kishanganj district flowed in Extreme flood situation on 29 th June 2022 and 10 stations flowed in Severe flood situation. Till June 2022, 338   forecasts  were  issued  in  Bihar  out  of  which   326  were  within  permissible  limit  with   96.44  %  of accuracy.

## ANNEXURE  REFERRED  TO  IN  REPLY  OF  PART  (d)  OF  LOK  SABHA  UNSTARRED QUESTION NO. 3060 TO BE ANSWERED ON 04.08.2022 REGARDING "FLOOD PATTERN"

.

## STATEMENT SHOWING CROP DAMAGE DUE TO FLOODS FROM 2018 TO 2020

| lNo   | Name of State      | 2018             | 2018                   | 2019             | 2019                   | 2020             | 2020             |
|-------|--------------------|------------------|------------------------|------------------|------------------------|------------------|------------------|
| lNo   | Name of State      | Damages to Crops | Damages to Crops       | Damages to Crops | Damages to Crops       | Damages to Crops | Damages to Crops |
| lNo   | Area               | (Mha)            | Value (Rs. Crore) Area | (Mha)            | Value (Rs. Crore) Area | (Mha) Value      | (Rs. Crore)      |
| 1     | ANDHRA PRADESH     | 0.170            | 237.480                | 0.004            | 19.618                 | 0.213            | 903.000          |
| 2     | ARUNACHAL PRADESH  | 0.743            | 462.915                | NR               | NR                     | 0.006            | 10.129           |
| 3     | ASSAM              | 0.031            | 23.490                 | 0.233            | 167.470                | 0.188            | 145.870          |
| 4     | BIHAR              | 0.001            | 5.137                  | NR               | NR                     | 0.517            | 727.876          |
| 5     | CHATTISGARH        | 0.004            | 12.246                 | NR               | NR                     | 0.005            | 3.660            |
| 6     | GOA                | 0                | 0                      | NR               | NR                     | NR               | NR               |
| 7     | GUJARAT            | 0.054            | 47.820                 | 0.000            | 0.000                  | 2.902            | 2912.820         |
| 8     | HARYANA            | 0.079            | 88.446                 | 0.000            | 0.600                  | NR               | NR               |
| 9     | HIMACHAL PRADESH   | 0.411            | 12.570                 | 0.040            | 87.120                 | 0.001            | 16.750           |
| 10    | JAMMU & KASHMIR    | 0.000            | 0.000                  | NR               | NR                     | NR               | NR               |
| 11    | JHARKHAND          | 0.000            | 0.000                  | 0.005            | 2.715                  | 13.297           | 0.728            |
| 12    | KARNATAKA          | 0.232            | 2220.700               | 1.02             | NR                     | 1.310            | NR               |
| 13    | KERALA             | 0.087            | 168.480                | 0.013            | NR                     | 0.006            | NR               |
| 14    | MADHYA PRADESH     | 0.000            | 0.000                  | 6.047            | NR                     | 0.629            | NR               |
| 15    | MAHARASHTRA        | 0.000            | 0.000                  | NR               | NR                     | NR               | NR               |
| 16    | MANIPUR            | 0.005            | 0.000                  | 0.000            | 0.000                  | NR               | NR               |
| 17    | MEGHALAYA          | 0.000            | 0.038                  | 0.000            | 0.000                  | NR               | NR               |
| 18    | MIZORAM            | 0.000            | 0.000                  | 0.000            | 0.000                  | 0.12             | NR               |
| 19    | NAGALAND           | 0.002            | 0.000                  | NR               | NR                     | NR               | NR               |
| 20    | ODISHA             | 0.026            | 29.020                 | 0.038            | 43.250                 | 0.314            | 542.300          |
| 21    | PUNJAB             | 0.057            | 120.410                | 0.152            | NR                     | 0.152            | NR               |
| 22    | RAJASTHAN          | 0.002            | 2.200                  | 2.390            | 8787.770               | 0.040            | 45.790           |
| 23    | SIKKIM             | 0.000            | 0.000                  | NR               | NR                     | 0.010            | 3.000            |
| 24    | TELANGANA          | NR               | NR                     | NR               | NR                     | NR               | NR               |
| 25    | TAMILNADU          | 0.191            | 0.000                  | 0.000            | 0.000                  | NR               | NR               |
| 26    | TRIPURA            | 0.025            | 24.282                 | 0.001            | 2.610                  | 0.006            | 137.720          |
| 27    | UTTAR PRADESH      | 0.383            | 230.364                | 0.650            | 625.120                | 0.120            | 176.380          |
| 28    | UTTARAKHAND        | 0.001            | 0.000                  | 0.000            | 0.000                  | NR               | NR               |
| 29    | WEST BENGAL        | 0.011            | 22.410                 | 0.095            | 1166.074               | NR               | NR               |
| 30    | A & N ISLAND       | 0.000            | 0.000                  | 0.000            | 0.000                  | NR               | NR               |
| 31    | CHANDIGARH         | Nil              | Nil                    | NR               | NR                     | Nil              | Nil              |
| 32    | D&NHAVELI          | 0.000            | 0.000                  | NR               | NR                     | NR               | NR               |
| 33    | DAMAN& DIU         | 0.000            | 0.000                  | NR               | NR                     | NR               | NR               |
| 34    | DELHI              | 0.000            | 0.000                  | NR               | NR                     | NR               | NR               |
| 35    | LADAKH             | NR               | NR                     | NR               | NR                     | NR               | NR               |
| 36 37 | LAKSHADWEEP        | 0.000 0.000      | 0.000 0.180            | NR               |                        | NR NR            | NR NR            |
|       | PUDUCHCHERRY Total | 2.515            | 3708.187               | 0.000 10.688     | 0.000 NR 10902.347     | 19.836           | 5626.023         |

NR- NOT REPORTED

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