Trend Analysis of Lake Surface Temperatures in Lake Van
In this study, the change and trend of water surface temperatures of Lake Van has been investigated. For the period of 2016- 2020; NASA-Day, NASA-Night satellite and measurement data obtained from the Turkish State Meteorological Service for 3 stations were compared. In addition, the monthly, the...
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| Format: | Article |
| Language: | English |
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Artvin Coruh University
2022-07-01
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| Series: | Doğal Afetler ve Çevre Dergisi |
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| Online Access: | http://dacd.artvin.edu.tr/tr/download/article-file/2005128 |
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| author | Kebir Emre Saraçoğlu Fevziye Ayça Saraçoğlu |
| author_facet | Kebir Emre Saraçoğlu Fevziye Ayça Saraçoğlu |
| author_sort | Kebir Emre Saraçoğlu |
| collection | DOAJ |
| description | In this study, the change and trend of water surface temperatures of Lake Van has been investigated. For the period of 2016-
2020; NASA-Day, NASA-Night satellite and measurement data obtained from the Turkish State Meteorological Service for 3 stations
were compared. In addition, the monthly, the annual (minimum-average-maximum), the seasonal trend analysis of day and night longterm satellite data (2001-2020) and their significance levels were determined by the Theil-Sen and Innovative Trend Analysis.
Measurement data covering for the period of 2016-2020 and NASA-Day, NASA-Night satellite data were highly compatible (R=0,94-
0,99). NASA-Night water surface temperatures were found to be more compatible with measurement data than NASA-Day satellite
data. NASA-Day and NASA-Night water surface temperatures covering for the period of 2001-2020 were found to be homogeneous at
a 1% significant level. Water surface temperatures tend to increase both in the short and long term. The highest increase in monthly
analyses (0,094 °C/year) was determined in June for NASA-Day and in April for NASA-Night (0,104 °C/year). The highest increase in
seasonal analyses was seen in night data (0,080-0,099 °C/year) in the spring season. The average increase in long-term annual average
water surface temperatures was calculated as 0,043 °C/year. It was concluded that this value is smaller than the increase determined
for the Eastern Black Sea (0,11 °C/year), higher than the calculated for the Aegean and Eastern Mediterranean (0,055°C/year),
approximately 1,5 times the increase determined for the South Caspian Sea (0,029 ± 0,009 °C /year) and about 4 times the increase
(as 0,011 °C/year) for the oceans.
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| format | Article |
| id | doaj-art-f67d6d7c07a24edea24f333a205ddc53 |
| institution | Kabale University |
| issn | 2528-9640 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Artvin Coruh University |
| record_format | Article |
| series | Doğal Afetler ve Çevre Dergisi |
| spelling | doaj-art-f67d6d7c07a24edea24f333a205ddc532025-02-02T16:55:40ZengArtvin Coruh UniversityDoğal Afetler ve Çevre Dergisi2528-96402022-07-0182221 237https://doi.org/10.21324/dacd.1003496Trend Analysis of Lake Surface Temperatures in Lake VanKebir Emre Saraçoğlu0https://orcid.org/0000-0002-0837-9110Fevziye Ayça Saraçoğlu1https://orcid.org/0000-0002-9626-7652 İstanbul Üniversitesi-Cerrahpaşa, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, 34320, İstanbulÇanakkale Onsekiz Mart Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, 17020, ÇanakkaleIn this study, the change and trend of water surface temperatures of Lake Van has been investigated. For the period of 2016- 2020; NASA-Day, NASA-Night satellite and measurement data obtained from the Turkish State Meteorological Service for 3 stations were compared. In addition, the monthly, the annual (minimum-average-maximum), the seasonal trend analysis of day and night longterm satellite data (2001-2020) and their significance levels were determined by the Theil-Sen and Innovative Trend Analysis. Measurement data covering for the period of 2016-2020 and NASA-Day, NASA-Night satellite data were highly compatible (R=0,94- 0,99). NASA-Night water surface temperatures were found to be more compatible with measurement data than NASA-Day satellite data. NASA-Day and NASA-Night water surface temperatures covering for the period of 2001-2020 were found to be homogeneous at a 1% significant level. Water surface temperatures tend to increase both in the short and long term. The highest increase in monthly analyses (0,094 °C/year) was determined in June for NASA-Day and in April for NASA-Night (0,104 °C/year). The highest increase in seasonal analyses was seen in night data (0,080-0,099 °C/year) in the spring season. The average increase in long-term annual average water surface temperatures was calculated as 0,043 °C/year. It was concluded that this value is smaller than the increase determined for the Eastern Black Sea (0,11 °C/year), higher than the calculated for the Aegean and Eastern Mediterranean (0,055°C/year), approximately 1,5 times the increase determined for the South Caspian Sea (0,029 ± 0,009 °C /year) and about 4 times the increase (as 0,011 °C/year) for the oceans. http://dacd.artvin.edu.tr/tr/download/article-file/2005128lake vanlake surface temperaturetrend analysishomogeneity |
| spellingShingle | Kebir Emre Saraçoğlu Fevziye Ayça Saraçoğlu Trend Analysis of Lake Surface Temperatures in Lake Van Doğal Afetler ve Çevre Dergisi lake van lake surface temperature trend analysis homogeneity |
| title | Trend Analysis of Lake Surface Temperatures in Lake Van |
| title_full | Trend Analysis of Lake Surface Temperatures in Lake Van |
| title_fullStr | Trend Analysis of Lake Surface Temperatures in Lake Van |
| title_full_unstemmed | Trend Analysis of Lake Surface Temperatures in Lake Van |
| title_short | Trend Analysis of Lake Surface Temperatures in Lake Van |
| title_sort | trend analysis of lake surface temperatures in lake van |
| topic | lake van lake surface temperature trend analysis homogeneity |
| url | http://dacd.artvin.edu.tr/tr/download/article-file/2005128 |
| work_keys_str_mv | AT kebiremresaracoglu trendanalysisoflakesurfacetemperaturesinlakevan AT fevziyeaycasaracoglu trendanalysisoflakesurfacetemperaturesinlakevan |