Journal cover Journal topic
Geoscientific Instrumentation, Methods and Data Systems An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.182 IF 1.182
  • IF 5-year value: 1.437 IF 5-year
    1.437
  • CiteScore value: 3.0 CiteScore
    3.0
  • SNIP value: 0.686 SNIP 0.686
  • IPP value: 1.36 IPP 1.36
  • SJR value: 0.538 SJR 0.538
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 11 Scimago H
    index 11
  • h5-index value: 13 h5-index 13
Preprints
https://doi.org/10.5194/gi-2020-34
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-2020-34
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  19 Oct 2020

19 Oct 2020

Review status
This preprint is currently under review for the journal GI.

Evaluation of Climate Change Impact on Extreme Temperature Variability in the Blue Nile Basin, Ethiopia

Mostafa A. Mohamed and Mohamed El-Sayed El-Mahdy Mostafa A. Mohamed and Mohamed El-Sayed El-Mahdy
  • Assistant Professor of meteorology, Natural Resources Department, Faculty of African Postgraduate Studies, Cairo University, Giza, Egypt

Abstract. In this paper, spatial and temporal patterns of changes in extreme temperatures are investigated using 10 meteorological stations data for the period 1950–2018 in the Blue Nile basin. Monthly temperature data for the basin were used in the study. Long-term trends in the Blue Nile Basin annual and monthly temperatures were investigated. The statistical significance of the trend is calculated by applying the Mann-Kendall (MK) test. The analysis of data was performed using the coefficient of variance, anomaly index. The results showed that the annual maximum and minimum temperature is increasing significantly with a magnitude of 0.037° and 0.025 °C per decade respectively in the period from 1950–2018. The result of the Mann-Kendall analysis test revealed a marked increase in mean maximum and minimum temperatures trend over time significantly during the study period (the minimum temperature rate is more evident than the maximum). The long-term anomalies of mean annual minimum temperature revealed the inter-annual variability while the trend after 1977 was higher than the long-term average that is proof of the warming trend existence since the last two decades of the 20th century.

Mostafa A. Mohamed and Mohamed El-Sayed El-Mahdy

Interactive discussion

Status: open (until 04 Jan 2021)
Status: open (until 04 Jan 2021)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Mostafa A. Mohamed and Mohamed El-Sayed El-Mahdy

Mostafa A. Mohamed and Mohamed El-Sayed El-Mahdy

Viewed

Total article views: 317 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
285 24 8 317 7 7
  • HTML: 285
  • PDF: 24
  • XML: 8
  • Total: 317
  • BibTeX: 7
  • EndNote: 7
Views and downloads (calculated since 19 Oct 2020)
Cumulative views and downloads (calculated since 19 Oct 2020)

Viewed (geographical distribution)

Total article views: 227 (including HTML, PDF, and XML) Thereof 222 with geography defined and 5 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 02 Dec 2020
Publications Copernicus
Download
Short summary
Blue Nile Basin is of vital importance for the whole Nile Basin. The investigation of the impact of climate change on this basin is a must. Blue Nile Basin annual and monthly temperatures were investigated. Spatial and temporal patterns of changes in extreme temperatures are investigated using 10 meteorological stations data for the period 1950–2018. The investigation showed that climate change has a negative impact on the basin in terms of temperature.
Blue Nile Basin is of vital importance for the whole Nile Basin. The investigation of the impact...
Citation