i am interested to find weighted average rainfall of the three stations given in attached figure for the given 598 Sq Km catchment area. Gauge 2 is within the catchment and gauge 1 and 3 are out side the catchment. now i want how to apply thiesson formula...
There are number of methods which can be employed for estimation of the areal
rainfall including:
•The Arithmetic average method,
•Weighted average method
•Thiessen polygon method.
•Kriging techniques. etc
can any one explain the weighted average method. its formula and solved example if possible?
am interested to do trend analysis of rainfall, run-off and temperature using parametric test. my question is .is it essential to have normally distributed data or not? can i directly apply regression analysis and then check for significance and non significance
FOR CATCHMENT LIKE THIS (GIVE IN FIGURE). I AM INTERESTED TO FIND RUNOFF. WHILE I HAVE DAILY RAINFALL DATA OF ONE GAUGE.WHICH IS INSTALLED NEAR THE OUTLET. CAN I RUN HEC HMS MODEL LIKE IN THE FIGHURE(SEPARATE BASINS). OR RUN IT AS ONE BASIN NOT DISTRIBUTE IT INTO SUB BASINS? does HEc hms this...
i have daily rain fall of station A for 1970-2014 and rainfall data on monthly basis for Station B for 1970-1996. now i am interested to generate daily data for Station B.by using daily data of station A. how can i do this??
Salam
Respected dears,
a high flow is coming from the top (28 m head) as seen in the figure attached. but still the flow is below the critical line in the downstream portion. while practically this not possible (as there will be a hydraulic jump will produce). is there any justification for...
i have daily rain fall data for last 30 years. in which i extract maximum daily data in each year. now how to find 24 hour rain fall pattern.or simply how to find 24 hr storm pattern for hydro graph generation.
I have model jpg is attach. in the picture in time series data (precipitation gauges) i think the ppt is inches, is 24 hr rainfall data but what does mean by the Percentage given in the right side table?( please refer to...
Respected
i want to know if i have two hydrograph of rainfall 15 minutes interval and 1 hour interval and correspondingly the same for hydrograph (15 minut and 1 hour respectively) which one will have the peak flood. 15 minute hydrograph or 1 hour hydrograph?
i have an inverted siphon for which losses correctly calculated. but the inlet is not submerged. my question is will the siphon be flow under pressure or not (hydraulic seal is must?http://files.engineering.com/getfile.aspx?folder=6425404f-7154-4e84-a234-819f24749afc&file=IMG20170525164953.jpg
i have daily data of rainfall of 30 years. i want to find runoff in excel using scs curve number method.if i put scs formula in every cell , there will be a lot of data and confusion because (31(days)*12(month)*30(years). now my question what is the simplest method and also how to utilised the...
i want to find unit hydrograph for the storm of 500 year return period (which rainfall is 10 inch).i use "curvilinear dimensionless unit hydrograph" and find the discharge.which is 128000 cusec. but when i put the same parameter in hec hms the result is only 40000 cusec discharge. i tried many...
i have to find peak discharge and inflow hydrograph while i have 500 year return period rain fall which is 10.14 in. my catchment area is 32.43 mi^2. curve number is 85. time of concentration is 1.22 hr. my question is how to find inflow hydrograph in HEC HMS while i have these data?? and how to...
i have to find peak discharge and inflow hydrograph while i have 500 year return period rain fall which is 10.14 in. my catchment area is 32.43 mi^2. curve number is 85. time of concentration is 1.22 hr. my question is how to find inflow hydrograph in HEC HMS while i have these data?? and how to...
i have to design an inverted siphon. but situation is
a conduit is taken out from dam. water is to be delivers to inverted siphon immediately after impact wall. but the level of invert of siphon is higher than the conduit outlet level. now my question is whether siphon will pass water with out...
