Impact of Threshold Value for Detecting Drought Index: A Case Study from Pabna District of Bangladesh
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064



Downloads: 33 | Weekly Hits: ⮙3 | Monthly Hits: ⮙9

Research Paper | Statistics | Bangladesh | Volume 10 Issue 2, February 2021

Impact of Threshold Value for Detecting Drought Index: A Case Study from Pabna District of Bangladesh

Md. Mostafizur Rahman, M. Sayedur Rahman

The climate plays important role in the agriculture production in any country. Rainfall is one of the most important factors which affect non-irrigated crop. Water deficits and excess water are the greatest constraints for rain fed rice yields. Agricultural drought is mainly inadequacy of rainfall. In this study an attempt has been made to apply Markov Chain model techniques for drought index detection with different threshold value and find out the most drought prone decade of Pabna district by Markov Chain model. The daily rainfall data set for 55 years during the period 1961-2015 is considered in this study. The daily rainfall data were reducing 5, 7 and 10 days and considered threshold value 2.5 mm, 5.0 mm and 7.5 mm. We calculate the Drought Index from the first transition probability matrix and then estimate with higher transition probability matrix. When the higher transition probability matrix became stable, then we estimate the DI. The empirical study showed that the decade 1961-1969, 1970-1979, 1980-1989 was more drought prone than the decade 1990-1999, 2000-2009 and 2010-2015. Among these decades, the decade 1961-1969 was maximum drought prone of all of these three threshold value for 5 days, 7 days and 10 days data in case of Pabna district. This study also showed that the following district is affected by chronic drought proneness in the 1st TPM for threshold value 2.5 mm but at higher TPM both stations are affected different drought proneness some are severe, some are moderate, some are mild some are occasional. It indicates that if we calculate the drought index decade wise both stations are affected by chronic drought proneness at the 1st TPM but due to climate change at higher TPM the drought proneness are not chronic at all. For any data point if we consider different threshold value for identifying drought index then we may conclude that if we increase the threshold value than it decrease the DI value. This study will contribute to policy formulat

Keywords: Drought Index, Different time period, Threshold Value, Markov Chain Model and Pabna

Edition: Volume 10 Issue 2, February 2021

Pages: 706 - 717

Share this Article

How to Cite this Article?

Md. Mostafizur Rahman, M. Sayedur Rahman, "Impact of Threshold Value for Detecting Drought Index: A Case Study from Pabna District of Bangladesh", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=SR21207220710, Volume 10 Issue 2, February 2021, 706 - 717

Enter Your Registered Email Address





Similar Articles with Keyword 'Drought Index'

Downloads: 33 | Weekly Hits: ⮙3 | Monthly Hits: ⮙9

Research Paper, Statistics, Bangladesh, Volume 10 Issue 2, February 2021

Pages: 706 - 717

Impact of Threshold Value for Detecting Drought Index: A Case Study from Pabna District of Bangladesh

Md. Mostafizur Rahman, M. Sayedur Rahman

Share this Article

Downloads: 75 | Weekly Hits: ⮙3 | Monthly Hits: ⮙15

Research Paper, Statistics, Bangladesh, Volume 9 Issue 11, November 2020

Pages: 1251 - 1259

Comparison the Drought Probability at Different Decade from Northwestern Area of Bangladesh

Md. Mostafizur Rahman, M. Sayedur Rahman

Share this Article

Similar Articles with Keyword 'Threshold Value'

Downloads: 33 | Weekly Hits: ⮙3 | Monthly Hits: ⮙9

Research Paper, Statistics, Bangladesh, Volume 10 Issue 2, February 2021

Pages: 706 - 717

Impact of Threshold Value for Detecting Drought Index: A Case Study from Pabna District of Bangladesh

Md. Mostafizur Rahman, M. Sayedur Rahman

Share this Article

Downloads: 75 | Weekly Hits: ⮙3 | Monthly Hits: ⮙15

Research Paper, Statistics, Bangladesh, Volume 9 Issue 11, November 2020

Pages: 1251 - 1259

Comparison the Drought Probability at Different Decade from Northwestern Area of Bangladesh

Md. Mostafizur Rahman, M. Sayedur Rahman

Share this Article

Downloads: 123 | Weekly Hits: ⮙1 | Monthly Hits: ⮙11

M.Tech / M.E / PhD Thesis, Statistics, Tanzania, Volume 5 Issue 10, October 2016

Pages: 1858 - 1868

Non Homogeneous Poisson Process Modelling of Seasonal Extreme Rainfall Events in Tanzania

Triphonia Ngailo, Nyimvua Shaban, Joachim Reuder, Edwin Rutalebwa, Isaac Mugume

Share this Article



Top