The isohyets for annual rainfall over a catchment basin were drawn. The area of strips between the isohyets is indicated below. Find the average depth of annual precipitation over the basin. Isohyets (cm) Area in sq km 75-85 580 85-95 2960 95-105 2850 105-115 1000 115-135 610 135-155 160

Q: The isohyets for annual rainfall over a catchment were drawn and the area enclosed by the isohyets…

A: Isohyets are draw and the area enclosed by isohyets is given in the table below. Isohyets…

Q: Time since Start in Minutes 30 60 90 120 150 180 210 240 270 300 Cumulative Rainfall (mm) 6. 18 21…

A: rainfall hyetograph is the graph between rainfall intensity and time duration. this graph we plot…

Q: (B)- For the area shown in the figure find the mean rainfall by Thiessen Polygon method if the value…

A: The given area is of rhombus shape .Stations with rainfall in cm.P= 110 cmQ=125 cmR=120 cmS=125 cm.

Q: What is the depth of rainfall in inches for the 30 minute rainfall intensity at time = 145 min? %3D…

A: From the given data to find depth rain fall... By doing cumulative of all interval rain fall

Q: (B)- For the area shown in the figure find the mean rainfall by Thiessen Polygon method if the value…

A: StationAnnual Rainfall(mm)P110Q125R120S125

Q: The data below represents the accumulative annual rainfall for station A and the accumulative…

A: Double mass curve is used to check data inconsistency of rainfall stations. Double mass curve is a…

Q: 9.24 The rainfall excesses derived from the weighted-average daily rainfall in a basin are indi-…

A: Given,

Q: A catchment is idealized as a 30km × 30km square. It has four rain gauges as . During a month, the…

A:

Q: The precipitation on a catchment in Zimbabwe of area 95 km² is sampled in table below. Determine the…

A: Area of catchment = 95 km2 Mean precipitation = 98 mm Precipitation recorded by station number 7 = ?…

Q: A river basin contains 6 rainfall stations with the annual data given in the table below. How many…

A:

Q: HYDROLOGY WHEN t0 = 8:00AM WHAT IS THE INTENSITY OF THE OF THE RAINFALL BETWEEN 9:00AM AND 9:30AM…

A: Given   Rainfall data from 8.00AM to 10A.M To find  Intensity of rainfall from 9.00AM to 9.30 AM…

Q: ent whose shape can be approximately described b ng coordinates (distances in kilometres): (80, 10),…

A: According to given data  station 1 co ordinates annual (0-40) rainfall (cm) 132station 2 co…

Q: Determine average precipitation using arithmetic mean method

A: Given, Gage number Precipitation depth (in) 1 1.86 2 1.23 3 0.02 4 0.86 The equation…

Q: In the table below annual rainfalls of gage A, B, C and D are given. Gage D was permanently…

A: The given data is shown below:

Q: Find the mean precipitation for the area sketched in figure by Thiessen's method. The area is…

A:

Q: 2) For the watershed in the Figure 1, using mean annual precipitations in Table 1, Table1 Annual…

A: StationsPrecipitation (mm/year)A86B96C126D136E106F96G106H116I126J126K106L116M121N126O136P126

Q: The following hydrological information : N for proposed site for hydropowe in Athi River Bauin Table…

A: Use ripple diagram or cumulative mass curve to determine the active storage for the dam if Only 2/3…

Q: The total annual precipitation for a region is approximately normally distributed with a mean of 848…

A: The total annual precipitation for a region is approximately normally distributed Mean…

Q: The annual rainfall at the rain-gauge stations with the catchment area of 10km are indicated below.…

A: Using Thiessen polygon method  Station  Recorded rainfall (Pi)   in cm Area of polygon (Ai)  (in…

Q: Q2/ The rainfall on a catchment in Iraq of area 95 km' is sampled in table below. Determine the…

A: The rainfallPi and the corresponding areasAiare givenTotal area, A=95Km2The average rainfall, P=95mm

Q: Determine the average rainfall intensity in mm/hr at Point H (return period is 100 years). Use…

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Q: 10mmA 20mm В Scale : 4 km? 30mm D 40mm

A:

Q: Calculate the following  (i) Mean annual rainfall (ii). Standard Deviation (iii) Coefficient of…

A: As per company policy we can only answer first three questions Kindly post other questions as…

Q: Find the following: a. What is the 10-yr rainfall intensity? b. What is the probability that…

A: Given the following record for annul maximum rainfall in Gaza Strip. YearRainfall…

Q: A record of rainfall (mm) is randomly distributed in a basin. Calculate the average rainfall depth…

A:

Q: In a catchment area, six rainfall stations are situated as shown in the figure below. Rainfall…

A: In Theissen-polygons method, the average rainfall over an area is calculated as follows, Pavg =…

Q: A watershed covering 28.16 mi2 has a system of seven rainfall gages, as shown on the map in the…

A: Given PrecipitationsArea7 rainfall guagesTo find out Average Precipitation

Q: Watershed problem(Hydrology)

A: 1. Annual rainfall recorded by the five rain gauge stations (in cm): 115.5, 106.8, 125.4, 95.6, and…

Q: What is the negative deviation value in this diagram 600 550- *Observed inflow adjusted for…

A: Given data- Mass-inflow variation with year is given in the form graph as shown-

Q: A catchment with an area A = 85 km^2, has four rainfall gauges (P1 – P4) according to the figure.…

A:

Q: 9.3 cm 172 164 10.5 cm 42 12.8 cm 156 10.9 cm 14.2 cm 124 Basin boundary D150 12.2 cm 36 116 14.0 cm…

A: Thiessen polygon method is a common method of weighing the rain gauge observation according to the…

Q: Find area precipitation by isohyetal method for a certain catchment area given the following data

A:

Q: What is the depth of rainfall in inches for the 60 minute rainfall intensity at time = 105 min? %3D…

A: First of all  We have to do cumulative for given data to find depth at 105 min

Q: Q3: In a catchment area, approximated by a rectangular of coordinates (50, 0), (100, 50), (50, 100),…

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Q: Station 12345 Rainfall (cm) 10 20 30 40 50 Area enclosed by Polygon (km²) 0.22 4.02 1.35 1.60 1.95

A:

Q: A record of rainfall (mm) is randomly distributed in a basin. Calculate the average rainfall depth…

A: Given Randomly distributed record of rainfall in a basin. To Determine Average rainfall depth using…

Q: find the following :  1- Average precipitation by Athematic mean method (mm)=   ?  2- Average…

A: There are three methods to calculate the average rainfall over the catchments, is the rainfall is…

Q: .16.5 37.1 •48.8 .71.6 68.3 .39.1 • 75.7 • 127.0 49.5

A:

Q: Assume that the average annual precipitation over a watershed is 1200 mm. if 45% of this…

A:

Q: What is the negative deviation value in this diagram

A: Solution: By Considering the Graph given as per question

Q: A catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas…

A:

Precipitation

Precipitation forms the basis of the water cycle on the Earth. The air is packed with water molecules in the form of moisture or water vapor. This water vapor usually rises to the atmosphere due to density differences. Precipitation represents any form of water, in liquid form or frozen form that forms in the earth's atmosphere. The water vapor up in the atmosphere condenses due to low temperature and it leads to the formation of clouds. The water vapor that forms clouds on account of condensation, is preferably known as cloud droplet. These cloud droplets when become heavy and can no longer sustain the weight of condensed water droplets, they come to the Earth in the form of rain, snow, ice pellets, and hail. Precipitation patterns, evaporation, and condensation are the three parameters that decide the global water cycle, climate change, and weather. Additionally, smoke and dust particles are equally important parameters for precipitation, as they provide the surface area for the water vapors to get condensed and to form water droplets. So they are known as condensation nuclei. The presence of other pollutants in the air also serves as condensation nuclei. Precipitation always results in the pure water supply to earth, as the salt from the seawater does not evaporate with the water.