Inundation analysis of metro systems with the storm water management model incorporated into a geographical  information system: a case study in Shanghai

Lyu, Hai-Min; Shen, Shui-Long; Yang, Jun; Yin, Zhen-Yu

doi:https://doi.org/10.5194/hess-23-4293-2019

Articles | Volume 23, issue 10

https://doi.org/10.5194/hess-23-4293-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-23-4293-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 10

Research article

|

24 Oct 2019

Research article |

| 24 Oct 2019

Inundation analysis of metro systems with the storm water management model incorporated into a geographical information system: a case study in Shanghai

Hai-Min Lyu, Shui-Long Shen, Jun Yang, and Zhen-Yu Yin

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Final revised paper (published on 24 Oct 2019)
Preprint (discussion started on 22 Mar 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

SC1: 'Scenario-based inundation analysis of metro systems: a case study in Shanghai', Yue Zhang, 04 Apr 2019
- SC3: 'Responses to the Comments of Yue Zhang', Shui-Long Shen, 12 May 2019
- AC3: 'Responses to the Comments of Yue Zhang', Shui-Long Shen, 12 May 2019
  - AC4: 'Revised Manuscript', Shui-Long Shen, 12 May 2019
SC2: 'Discussion comments', Menglim Hoy, 16 Apr 2019
- AC1: 'Responses to the Comments of Menglim Hoy', Shui-Long Shen, 12 May 2019
  - AC5: 'Revised Manuscript', Shui-Long Shen, 12 May 2019
RC1: 'comments', Malek Alshorman, 23 Apr 2019
- AC2: 'Responses to the Comments of Malek Alshorman (Referee)', Shui-Long Shen, 12 May 2019
  - AC6: 'Revised Manuscript', Shui-Long Shen, 12 May 2019
RC2: 'Comments to manuscript: "Scenario-based inundation analysis of metro systems: a case study in Shanghai', Anonymous Referee #2, 06 Jun 2019
- AC7: 'Responses to Referee #2', Shui-Long Shen, 29 Jun 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (03 Jul 2019) by Nadia Ursino

AR by Anna Wenzel on behalf of the Authors (04 Jul 2019) Author's response

ED: Referee Nomination & Report Request started (04 Jul 2019) by Nadia Ursino

RR by Anonymous Referee #3 (16 Jul 2019)

RR by Anonymous Referee #2 (26 Aug 2019)

Suggestions for revision or reasons for rejection

Despite the changes carried out by the authors to the previous version of the manuscript, there are still a few points that I consider worth revising:

- Line 18 (page 3) to line 3 (page 4): SWMM is not a 2D model. So, how can SWMM be limited by the 2D domain size and spatial res?

- In the answer to Q4: Is “113810” a large number of cells? I believe there are other studies that encmpass a larger number of grid cells to simulate 2D surface flow.

- In Answer to Q5: How is the resolution converted from 30m to 20m? what type of interpolation? Also, what level of accuracy is expected to have when adding the buildings to a raster of 20m spatial res??? More detailed is required and well as a discussion on this.

- In point (2) of the conclusions: “… the calculated water volume in the SWMM…” refers to flooding volume, right? But how is water spread in the catchment grid cells?

- Lines 12-13 (page 3): difficult to model? most GIS software do it automatically based on DEMs-based algorithms.

- In Answer to Q8: The authors should not "delete" parts of the text to avoid confusion. They should instead clarify the steps and concepts used in the text.

- In Answer to Q10 (“… instead we use the drainage capacity of the drainage system…”): This is a very strong assumption! replace the drainage system by the metro stations "hyd. capacity"? there are other methods, e.g. reduce a few mm from the rainfall.

- Line 3 (page 6): I think the authors mean “generate rainfall hyetographs” instead of “produce rainfall processes”

- Lines 1-2 (Page 24): "practical" interest??? the duration may be related to the catchment time of concentration... flash floods? … I think the authors should describe this in more detail.

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ED: Publish subject to minor revisions (review by editor) (03 Sep 2019) by Nadia Ursino

AR by Shui-Long Shen on behalf of the Authors (11 Sep 2019) Author's response Manuscript

ED: Publish as is (24 Sep 2019) by Nadia Ursino

Short summary

This study presents an integrated approach to evaluate inundation risks, in which an algorithm is proposed to integrate the storm water management model (SWMM) into a geographical information system (GIS). The proposed algorithm simulates the flood inundation of overland flows and in metro stations for each designed scenario. It involves the following stages: (i) determination of the grid location and spreading coefficient and (ii) an iterative calculation of the spreading process.