Framework for developing IDF curves using satellite precipitation: a case study using GPM-IMERG V6 data

2021 ◽  
Author(s):  
Kasi Venkatesh ◽  
Rathinasamy Maheswaran ◽  
Jarajapu Devacharan
Keyword(s):  
Satellite Precipitation ◽  
Idf Curves

scholarly journals Application of Correction Procedures for Some Systematic Measurement Errors to Rainfall Intensity Data of a Rain Gauge in Budapest

2021 ◽  
Author(s):  
Tibor Rácz
Keyword(s):  
Measurement Errors ◽  
Rainfall Intensity ◽  
Measurement Data ◽  
Sampling Period ◽  
Systematic Errors ◽  
Rain Gauge ◽  
Data Series ◽  
Idf Curves ◽  
Precipitation Gauge

The rainfall intensity measurement has a 150 years long history. In the first period of data recordings, the siphoned recording precipitation gauge (pluviographs), or siphoned rainfall writers (SRW), later, the tipping bucket gauges (TBG) were widely used. The systematic errors of these instruments resulted in lower intensity values for long periods. These errors were compensated sporadically. Most of the inaccurate data can be found in the high rainfall intensity range. Some of these data can be found in extracted, aggregated versions only, and the original measurement data is no longer available. These kinds of inherited systematic errors can be corrected. The fixing of siphoning error of SRWs and the supplementary correction of long sampling period data of TBG devices can be a suitable method for the elimination of these issues. In this paper, the application of these two methods is shown in a case study to point out the magnitude and effect of these errors on the IDF curves. The case study on the use of the before-mentioned correction procedures is performed on the rainfall data of the Budapest-Belterület (Budapest City) rainfall station, using data series spanning 105 years. These corrections show that the earlier IDF curves can show 5–10% lower intensities, mainly in the short and low return frequency rainfalls. The result of these kinds of corrections can be significant for the climate change investigations or in the re-evaluation of the elder IDF curves.

An updated moving window algorithm for hourly-scale satellite precipitation downscaling: A case study in the Southeast Coast of China

2020 ◽  
Vol 581 ◽  
pp. 124378 ◽  
Author(s):  
Ziqiang Ma ◽  
Jintao Xu ◽  
Kang He ◽  
Xiuzhen Han ◽  
Qingwen Ji ◽  
...  
Keyword(s):  
Moving Window ◽  
Satellite Precipitation ◽  
Southeast Coast

scholarly journals Assessment of non-stationary IDF curves under a changing climate: Case study of different climatic zones in Canada

2021 ◽  
Vol 36 ◽  
pp. 100870
Author(s):  
Daniele Feitoza Silva ◽  
Slobodan P. Simonovic ◽  
Andre Schardong ◽  
Joel Avruch Goldenfum
Keyword(s):  
Climatic Zones ◽  
Changing Climate ◽  
Idf Curves

scholarly journals Climate change impacts on intensity duration frequency curves of precipitation: A case study of Shiraz synoptic station, Iran

2021 ◽  
Vol 21 (2) ◽  
pp. 159-165
Author(s):  
A.ROSHAN ◽  
H. SEDGHI ◽  
R.A.SHARIFAN ◽  
J.PORHEMMAT
Keyword(s):  
Climate Change ◽  
Type Equation ◽  
Gumbel Distribution ◽  
Climate Change Impacts ◽  
Synoptic Station ◽  
Standard Design ◽  
The Future ◽  
Idf Curves ◽  
Intensity Duration Frequency

Intensity-duration-frequency (IDF) curves are among the standard design tools for many engineering applications such as urban drainage management. Since climate change may considerably affect precipitation, updating of IDF curves is highly necessary. The present study aims to examine the impacts of climate change on IDF curves of Shiraz synoptic station using downscaled outputs of Hadcm3 AOGCM under various emission scenarios (A1B, A2,B1) applying larswg-5 model for the period of 2046 to 2065. The fitted Gumbel distribution was used to estimate the maximum short-term precipitation quantiles in the base period (1968-2000) and the verified empirical Bell type equation was used for the future period. The results show that the mean of maximum daily precipitation and annual precipitation will decrease in the future. Also, the maximum precipitation intensities up to 60 min duration will reducefrom 0.15 mm hr-1 to about 10.79 mm hr-1 compared to the observed period in all returns periods and various scenarios. Overall, there were no tangible changes in intensities for durations higher than 60 min. The highest reduction in precipitation intensity would be at the 20 min duration with 100-year return period in the A2 scenario.

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