Relationship between Basin Morphometry and Flood-Overflow: Case of Tabakhane Stream (Ünye-Ordu, Türkiye)

Vedat Avci

Makale detayları

Relationship between Basin Morphometry and Flood-Overflow: Case of Tabakhane Stream (Ünye-Ordu, Türkiye)

Yazarlar:

Vedat Avci

Yayıncı:

Gumushane University

Dergi:

Gümüşhane Üniversitesi Sosyal Bilimler Dergisi Vol.14 Issue 1, pp.1-22

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283727

pISSN:

1309-7423

Anahtar kelimeler:

Özet:

 In the province of Ordu, in August 2018, Tabakhane and Ceviz stream overflowed due to heavy rains, settlements established in the stream bed were damaged and five hundred thousand people in the province were affected by floods and overflows. In this study, it was aimed to evaluate the areal two dimensional and relief three dimensional morphometric features of the Tabakhane Stream Basin within the scope of flood-overflow relationship. For this purpose, drainage density Dd, stream frequency Fs, basin shape Rf, elongation ratio Re and Gravelius index Kg, basin relief Bh, relief ratio Rh, ruggedness value Rn, time of concentration Tc, hypsometric curve Hc and hypsometric integral Hi analyses were performed. In this study, Digital Elevation Model DEM is used as the basic data. SYM was created by digitization of 125000 scale topography maps of the study area. Geographical Information Systems GIS software was used to determine the basin boundary, areal and relief morphometric properties were obtained using formulas in the literature. Accordingly, the values of Dd 2,51, Fs 2,97, Rf 0,31, Re 0,63 and Kg were found to be 1,38 in the Tabakhane Stream Basin. According to the results of relief morphometric analysis, the values of Bh were found to be 653 m, Rh as 0,05, Rn as 0.31, Tc as 126, 13 minutes and Hi as 0,30. The high Dd and Fs values in the basin indicate high flood potential. The hypsometric curve of the basin having a longitudinal shape shows a concave appearance. This indicates that floods in the upper basin can cause flooding in the downstream basin. When the climate and morphometric characteristics of the basin are evaluated together, it is seen that the flood-overflow risk is high and therefore the studies to be done to reduce flood losses in the basin should be taken into consideration.

 In the province of Ordu, in August 2018, Tabakhane and Ceviz stream overflowed due to heavy rains, settlements established in the stream bed were damaged and five hundred thousand people in the province were affected by floods and overflows. In this study, it was aimed to evaluate the areal two dimensional and relief three dimensional morphometric features of the Tabakhane Stream Basin within the scope of flood-overflow relationship. For this purpose, drainage density Dd, stream frequency Fs, basin shape Rf, elongation ratio Re and Gravelius index Kg, basin relief Bh, relief ratio Rh, ruggedness value Rn, time of concentration Tc, hypsometric curve Hc and hypsometric integral Hi analyses were performed. In this study, Digital Elevation Model DEM is used as the basic data. SYM was created by digitization of 125000 scale topography maps of the study area. Geographical Information Systems GIS software was used to determine the basin boundary, areal and relief morphometric properties were obtained using formulas in the literature. Accordingly, the values of Dd 2,51, Fs 2,97, Rf 0,31, Re 0,63 and Kg were found to be 1,38 in the Tabakhane Stream Basin. According to the results of relief morphometric analysis, the values of Bh were found to be 653 m, Rh as 0,05, Rn as 0.31, Tc as 126, 13 minutes and Hi as 0,30. The high Dd and Fs values in the basin indicate high flood potential. The hypsometric curve of the basin having a longitudinal shape shows a concave appearance. This indicates that floods in the upper basin can cause flooding in the downstream basin. When the climate and morphometric characteristics of the basin are evaluated together, it is seen that the flood-overflow risk is high and therefore the studies to be done to reduce flood losses in the basin should be taken into consideration.

 In the province of Ordu, in August 2018, Tabakhane and Ceviz stream overflowed due to heavy rains, settlements established in the stream bed were damaged and five hundred thousand people in the province were affected by floods and overflows. In this study, it was aimed to evaluate the areal two dimensional and relief three dimensional morphometric features of the Tabakhane Stream Basin within the scope of flood-overflow relationship. For this purpose, drainage density Dd, stream frequency Fs, basin shape Rf, elongation ratio Re and Gravelius index Kg, basin relief Bh, relief ratio Rh, ruggedness value Rn, time of concentration Tc, hypsometric curve Hc and hypsometric integral Hi analyses were performed. In this study, Digital Elevation Model DEM is used as the basic data. SYM was created by digitization of 125000 scale topography maps of the study area. Geographical Information Systems GIS software was used to determine the basin boundary, areal and relief morphometric properties were obtained using formulas in the literature. Accordingly, the values of Dd 2,51, Fs 2,97, Rf 0,31, Re 0,63 and Kg were found to be 1,38 in the Tabakhane Stream Basin. According to the results of relief morphometric analysis, the values of Bh were found to be 653 m, Rh as 0,05, Rn as 0.31, Tc as 126, 13 minutes and Hi as 0,30. The high Dd and Fs values in the basin indicate high flood potential. The hypsometric curve of the basin having a longitudinal shape shows a concave appearance. This indicates that floods in the upper basin can cause flooding in the downstream basin. When the climate and morphometric characteristics of the basin are evaluated together, it is seen that the flood-overflow risk is high and therefore the studies to be done to reduce flood losses in the basin should be taken into consideration.

 In the province of Ordu, in August 2018, Tabakhane and Ceviz stream overflowed due to heavy rains, settlements established in the stream bed were damaged and five hundred thousand people in the province were affected by floods and overflows. In this study, it was aimed to evaluate the areal two dimensional and relief three dimensional morphometric features of the Tabakhane Stream Basin within the scope of flood-overflow relationship. For this purpose, drainage density Dd, stream frequency Fs, basin shape Rf, elongation ratio Re and Gravelius index Kg, basin relief Bh, relief ratio Rh, ruggedness value Rn, time of concentration Tc, hypsometric curve Hc and hypsometric integral Hi analyses were performed. In this study, Digital Elevation Model DEM is used as the basic data. SYM was created by digitization of 125000 scale topography maps of the study area. Geographical Information Systems GIS software was used to determine the basin boundary, areal and relief morphometric properties were obtained using formulas in the literature. Accordingly, the values of Dd 2,51, Fs 2,97, Rf 0,31, Re 0,63 and Kg were found to be 1,38 in the Tabakhane Stream Basin. According to the results of relief morphometric analysis, the values of Bh were found to be 653 m, Rh as 0,05, Rn as 0.31, Tc as 126, 13 minutes and Hi as 0,30. The high Dd and Fs values in the basin indicate high flood potential. The hypsometric curve of the basin having a longitudinal shape shows a concave appearance. This indicates that floods in the upper basin can cause flooding in the downstream basin. When the climate and morphometric characteristics of the basin are evaluated together, it is seen that the flood-overflow risk is high and therefore the studies to be done to reduce flood losses in the basin should be taken into consideration.

Makale detayları

Relationship between Basin Morphometry and Flood-Overflow: Case of Tabakhane Stream (Ünye-Ordu, Türkiye)

Yazarlar:

Vedat Avci

Yayıncı:

Gumushane University

Dergi:

Gümüşhane Üniversitesi Sosyal Bilimler Dergisi Vol.14 Issue 1, pp.1-22

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283727

pISSN:

1309-7423

Basin morphometry

Flood

Tabakhane Stream

Ünye (Ordu).

Basin morphometry

Flood

Tabakhane Stream

Ünye (Ordu).

Sayı

Makale detayları

Yazarlar: Vedat Avci

Yayıncı: Gumushane University

Dergi: Gümüşhane Üniversitesi Sosyal Bilimler Dergisi Vol.14 Issue 1, pp.1-22

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001283727

pISSN: 1309-7423

Sayı

Yazarlar:

Vedat Avci

Yayıncı:

Gumushane University

Dergi:

Gümüşhane Üniversitesi Sosyal Bilimler Dergisi Vol.14 Issue 1, pp.1-22

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283727

pISSN:

1309-7423