Full Text Available
Access Repository
Search Results - probabilities and (math OR match) statistics
Search alternatives:
- math »
- Go to Previous Page
- Showing 81 - 81 results of 81
-
Best distribution and plotting positions of daily maximum flood estimation at Ona River in Ogun-Oshun River Basin, Nigeria
Published 2011Call Number: Loading…
Located: Loading…Article Loading…
Search Tools:
Refine Results
Page will reload when a filter is selected or excluded.- Natural Sciences 80 results 80
- Natural Sciences — Mathematical Sciences 80 results 80
- Probabilities and Math Statistics 80 results 80
- Nigeria 1 results 1
- Probability distributions, 1 results 1
- Statistical modelling, 1 results 1
- The paper discusses how Normal, Lognormal, and log-Pearson type 3 distributions were investigated as distributions for modelling at-site annual. maximum flood flows using the Hazen, Weibull, and California plotting positions at Ogun-Oshun river basin in Nigeria. All the probability distributions when matched with Weibull plotting position gave similar values near the center of the distribution but varied considerably in the tails. The Weibull plotting position when matched with Normal, Log-normal and Log Pearson Type III probability distributions gave the highest Coefficient of determinations of 0.967, 0.987, and 0.986 respectively. Hazen plotting position gave minimal errors with the RMSE of 6.988, 6.390, and 6.011 for Normal, Log-normal, and Log-Pearson Type III probability distributions respectively. This implies that, predicting statistically using Hazen plotting position, the central tendency of predicted values to deviate from observed flows will be minimal for the period under consideration. Minimum absolute differences of 2.3516 and 0.5763 at 25- and 50-year return periods' were obtained under the Log-Pearson Type III distribution when matched with Weibull plotting position, while an absolute difference of 0.2338 at 100-year return period was obtained under the Log-Pearson Type 1II distribution when matched with California .plotting position. Comparing the probability distributions, Log-Pearson Type III distribution with the least absolute differences for all the plotting positions is the best distribution among the three for Ona River under Ogun-Osun river basin study location. 1 results 1
- maximum flood, 1 results 1
- plotting positions, 1 results 1
- see all…
- Journal of Official Statistics 20 results 20
- Advances in Statistics 19 results 19
- Journal of Environmental Statistics 15 results 15
- Romanian Statistical Review 10 results 10
- Turkish Journal of Forecasting 7 results 7
- International Journal of Statistics and Probability 6 results 6
- Asian Journal of Mathematics & Statistics 2 results 2
- Statistics Research Letters 1 results 1
- see all…