Presentation is loading. Please wait.

Presentation is loading. Please wait.

HEC-HMS 2012.10.10 담당교수명 : 서 영 민 연 락 처 : 010-2507-7107.

Similar presentations


Presentation on theme: "HEC-HMS 2012.10.10 담당교수명 : 서 영 민 연 락 처 : 010-2507-7107."— Presentation transcript:

1 HEC-HMS 담당교수명 : 서 영 민 연 락 처 :

2 Part 1: HEC-HMS 개요

3 HEC-HMS 개요 개요 - Hydrologic Modeling System (HMS) - 미육군공병단 (USACE) 의 수문공학센터 (Hydrologic Engineering Center, HEC) 에서 개발한 강우 - 유출해석 프로그램 - 기존 HEC-1 (DOS 버전 ) 의 대체 버전 (Windows 버전 ) - 유효강우산정, 합성단위도, 하도추적 등 포함 - 격자형 강우자료 ( 레이더 ) 를 이용한 준분포형 모형 포함 - 장기유출모의를 위한 간단한 토양수분모형 포함 적용범위 - 강우 - 유출 해석을 통한 홍수피해 감소 - 댐 안전에 대한 여수로 타당성 - 저수지 설계 및 운영 - 홍수예경보 - 홍수터 관리 - 환경복원 등

4

5

6

7

8 Step 1. 새로운 프로젝트 생성 Step 2. 공유 프로젝트 자료 입력 Step 3. 유역자료 입력 및 설정 Step 4. 기상자료 입력 및 설정 Step 5. 모의기간 및 시간간격 설정 Step 6. 모의실행 및 결과 검토 Step 7. 자료 수정 및 생성 Step 8. 추가 모의 및 결과 비교 Application Steps

9 Program Screen

10 Watershed Explorer Basin Models Meteorologic Models Control Specifications Time-Series Data Paired Data

11 Basin Map Sub-basin Channel Junction Outlet

12 Component Editor

13 Component Data

14 Hydrologic Element 소유역 유출량 강우 및 손실 기저유출 ( 유역추적 및 합성단위도법 ) 하도유출 하도손실 ( 하도추적 ) 수문요소연결 No inflow Outflow 설정 No outflow Inflow 만 존재 저수지 설정 ( 저수지 추적 ) 흐름전환

15 Hydrologic Element

16 Precipitation Methods

17 Control Specifications 모의시간 및 간격 설정

18 Simulaton Results

19 End of Part I

20 Part 2: 주요 구성요소

21 Main Components  Basin model gives the physical description of the watershed.  Subbasin: watershed catchments where rain falls.  Reach: rivers and streams.  Reservoir: dams and lakes.  Junction: confluence.  Diversion: bifurcations and withdrawls.  Source: springs and other model sinks.  Sink: outlets and terminal lakes.  Meteorologic model describes atmospheric conditions over the watershed land surface.  Precipitation.  Potential evapotranspiration.  Snowmelt.  Control specifications: Time control during a simulation run. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

22 Hydrologic Elements Subbasin 유역면적 강우손실 ( 합성 ) 단위도 기저유출 Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

23 Subbasin Infiltration  Loss rate methods:  Deficit constant.  Exponential.  Green Ampt.  Gridded deficit constant.  Gridded SCS.  Gridded SMA.  Initial constant.  SCS curve number.  Smith Parlange.  Soil moisture accounting. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

24 Subbasin Surface Runoff  Unit hydrograph methods:  Clark.  SCS.  S-graph.  Snyder.  User-specified.  Other methods:  Kinematic wave.  ModClark distributed. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

25 Subbasin Baseflow  Baseflow methods:  Bounded recession.  Linear reservoir.  Monthly constant.  Nonlinear Boussinesq.  Recession. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

26 Reach  Routing methods:  Kinematic wave  Lag  Modified Puls  Muskingum  Muskingum-Cunge  Straddle stagger  Loss/gain methods:  Constant.  Percolation. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

27 Reservoir  Routing methods:  Storage curve.  Outlet structures.  Specified release.  Possible structures:  Gated spillway (0 to 10).  Overflow (0 to 10).  Outlet (0 to 10).  Pump (0 to 10).  Dam break (0 or 1). Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

28 Precipitation  Historical methods:  Gage weights.  Inverse distance.  User-specified.  Gridded.  Hypothetical methods:  Frequency storm.  SCS storm.  Standard project storm. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

29 Evapotranspiration  Available methods:  Gridded Priestley-Taylor.  Monthly average.  Priestley-Taylor. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

30 Snowmelt  Temperature index method.  Subbasin band approach.  Gridded approach. Ref.) Bill Scharffenberg (2008). Introduction to HEC-HMS, Workshop on Watershed Modeling with HEC-HMS

31 End of Part II


Download ppt "HEC-HMS 2012.10.10 담당교수명 : 서 영 민 연 락 처 : 010-2507-7107."

Similar presentations


Ads by Google