Temat: assessment indices - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Drought Risk Assessment in the Kopel River Basin
Autorzy:: Sojka, M.
Jaskuła, J.
Wielgosz, I.
Powiązania:: https://bibliotekanauki.pl/articles/124297.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: lowland river
drought indices
drought assessment
Opis:: The main aim of the study was to assess drought risk in the Kopel river basin on the basis of analysis of observations made in the period from 1972 to 2011. The Kopel river is a right tributary of the Warta river which it joins at 254+600 km. The drought risk was assessed on the basis of meteorological and hydrological diurnal data. The trend analysis revealed that temperature has a significant increasing tendency. On the basis of SNQ and Q70% flows the indices such as drought duration and drought volume were computed. Statistical analysis showed negative correlations between drought indices and precipitation. The results presented in this study indicated that drought risk in the Kopel river basin is high.
Źródło:: Journal of Ecological Engineering; 2017, 18, 6; 134-141
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Carbon Sequestration Assessment of the Orchards Using Satellite Data
Autorzy:: Uttaruk, Y.
Laosuwan, T.
Powiązania:: https://bibliotekanauki.pl/articles/123333.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: carbon sequestration assessment
satellite data
vegetation indices
Opis:: This study aimed to estimate above-ground carbon sequestration of orchards using satellite data. The research methodology analyzed the relationship between the amount of above-ground carbon sequestration and vegetation indices from the data obtained from LANDSAT 8 OLI including (1) Difference Vegetation Index (DVI), (2) Green Vegetation Index (GVI), (3) Simple Ratio (SR), (4) Normalized Difference Vegetation Index (NDVI), and (5) Transformed Normalized Difference Vegetation Index (TNDVI) in order to find out the most appropriate equation to estimate above-ground carbon sequestration of the orchards in the study area at Sang Kho sub district, Phu Phan district, Sakon Nakhon province in northeast Thailand. The study results found that the relationship between the amount of above-ground carbon sequestration and the most appropriate index relating to vegetation was TNDVI. At any rate, TNDVI had the relationship equation y = 0.226e^0.039x and coefficient of determination R² = 0.877, which represented the amount of above-ground carbon sequestration in the study area in a total of 40.86 tons per hectare.
Źródło:: Journal of Ecological Engineering; 2017, 18, 1; 11-17
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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