Indo-French Monsoon School on Hydrology from Space 2023 IISC

HANDS-ON SESSION 2

4.2 Inversion of width data for River discharge estimation

5 Discharge frequency analysis

Streamflow frequency analysis (return period analysis)

6 SWOT mission and its application in discharge estimation

6.1 SWOT data

• SWOT reach-average product

• SWOT node product

• SWOT point cloud product

                   Source : NASA/JLP                                                                                                                    Source : Tourian et al., 2017

• SWOT node product

  • AMHG based algorithm

• SWOT point cloud product

  • Flood extent

  • Flood depth

  • Flood severity

  • Damage/loss due to Flood

6.3 SWOT Nadir data analysis

• Variables

• Data extraction

• Plotting

SWOT Point Cloud data

Explore More

ALTIS Software

BRAT tool

SWOT Hydrology Simulator

GRWL

References/Related Studies

1. Patidar, G., Karmakar, S. and Indu, J., 2022. Flood mapping from proxy surface water and ocean topography (SWOT) satellite mission data over India. Geocarto International, 37(27), pp.16636-16653. 

2. Durand, M., Gleason, C.J., Pavelsky, T.M., Prata de Moraes Frasson, R., Turmon, M., David, C.H., Altenau, E.H., Tebaldi, N., Larnier, K., Monnier, J. and Malaterre, P.O., 2023. A framework for estimating global river discharge from the Surface Water and Ocean Topography satellite mission. Water Resources Research, 59(4), p.e2021WR031614. 

3. Gao, B.C., 1996. NDWI—A normalized difference water index for remote sensing of vegetation liquid water from space. Remote sensing of environment, 58(3), pp.257-266. 

4. Tourian, M.J., Elmi, O., Mohammadnejad, A. and Sneeuw, N., 2017. Estimating river depth from SWOT-Type observables obtained by satellite altimetry and imagery. Water, 9(10), p.753.

Some snaps from the Monsoon School SWOT session