hujan daerah 2021 rev

Summary

The script discusses the calculation of rainfall data for a study area, combining observations from three rainfall stations: Petungsewu, Sukun, and Ciliwung. It details the process of data correction, identifying maximum rainfall events, and the importance of consistency checks. The script also explains how to apply correction factors to original data to account for inconsistencies and calculate the average rainfall for further analysis.

Takeaways

• 🌧️ The script discusses the calculation of rainfall data for a study area, which is a combination of observations from several rain stations.
• 📈 There are three rain stations mentioned: Petungsewu, Sukun, and Ciliwung.
• 🔍 Data consistency checks are performed, and corrections are made to the original rainfall data.
• 📊 The maximum rainfall for Petungsewu is 95.73186, Sukun is 46.939 (corrected), and Ciliwung is 54.762.
• 🗓️ The script emphasizes finding the dates when the maximum rainfall occurred at each station.
• 📅 For example, the maximum rainfall for Petungsewu in 2008 occurred on February 1st.
• 🔎 It is necessary to look up the rainfall on the same date at the other stations to ensure data consistency.
• ✅ The script mentions that the data for Sukun and Ciliwung on November 28th needs to be checked against the other stations.
• 📉 Corrections for Petungsewu were made between 2015-2020 with a correction factor of 1.473.
• 📑 The final step is to calculate the average rainfall from the three stations and identify the maximum value for further calculations.
• 📝 The script concludes with the final rainfall data that will be used for subsequent calculations.

Q & A

What is the main subject discussed in the transcript?

The main subject discussed in the transcript is the calculation of rainfall data for a specific area, including the collection and correction of data from various rain stations.

How many rain stations are mentioned in the transcript?

Three rain stations are mentioned: Petungsewu, Sukun, and Ciliwung.

What does the maximum rainfall data of 95.73186 represent?

The maximum rainfall data of 95.73186 represents the highest recorded rainfall at the Petungsewu station.

Why is the rainfall data for Sukun station marked in red?

The rainfall data for Sukun station is marked in red because it has already undergone a correction process.

What is the significance of the red color marking on the data for Potong Sewu and Ciliwung stations?

The red color marking indicates that the data for Potong Sewu and Ciliwung stations have been corrected.

How is the validity of the rainfall data determined?

The validity of the rainfall data is determined by finding the maximum rainfall event at a specific station and verifying the date when it occurred.

What is the example date provided for the maximum rainfall at Petungsewu station?

The example date provided for the maximum rainfall at Petungsewu station is February 1st.

What is the purpose of finding the daily maximum rainfall data for other stations on the same date?

The purpose is to have a consistent dataset for comparison and further analysis, ensuring that the data from different stations is aligned by date for accurate calculations.

What does the term 'koreksi' refer to in the context of the transcript?

The term 'koreksi' refers to the correction factor applied to the original rainfall data to account for inconsistencies or errors.

What is the correction factor for Petungsewu station over the years 2015-2020?

The correction factor for Petungsewu station over the years 2015-2020 is 1.473.

How is the final rainfall data used for further calculations?

The final rainfall data, after corrections, is used for further calculations such as determining the average rainfall and planning for water resource management.