1. Long term monitoring and connection between topography and cloud cover distribution in SerbiaAleksandar Valjarević, Cezar Morar, Jelena Živković, Liudmyla Niemets, Dušan Kićović, Jelena Golijanin, Milena Gocić, Nataša Martić Bursać, Ljiljana Stričević, Igor Žiberna, Nikola Bačević, Ivica Milevski, Uroš Durlević, Tin Lukić, 2021, izvirni znanstveni članek Opis: The use of weather satellite recordings has been growing rapidly over the last three decades. Determining the patterns between meteorological and topographical features is an important scientific job. Cloud cover analysis and properties can be of the utmost significance for potential cloud seeding. Here, the analysis of the cloud properties was conducted by means of Moderate Resolution Imaging Spectroradiometer (MODIS) satellite recordings. The resolution of used data was 1 km2 within the period of 30 years (1989-2019). This research showed moderate changing of cloudiness in the territory of Serbia with a high cloudiness in February, followed by cloudiness in January and November. For the past three decades, May has been the month with the highest cloudiness. The regions in the east and south-west, and particularly in the west, have a high absolute cloudiness, which is connected with the high elevation of the country. By means of long term monitoring, the whole territory of Serbia was analyzed for the first time, in terms of cloudiness. Apart from the statistical and numerical results obtained, this research showed a connection between relief and clouds, especially in the winter season. Linear regression MK (Mann-Kendall test) has proven this theory right, connecting high elevation sides with high absolute cloudiness through the year. Ključne besede: clowd cover, remote sensing, GIS, topography, statistics, trends Objavljeno v DKUM: 18.10.2024; Ogledov: 0; Prenosov: 1
Celotno besedilo (5,65 MB) Gradivo ima več datotek! Več... |
2. State of soil conservation practices in Silti Woreda, southern EthiopiaMushir Ali, Kedru Surur, 2012, izvirni znanstveni članek Opis: Soil erosion is the major problem of Ethiopian highland areas where an average soil loss of 42tons/ha/year, with rate soil depth loss of more than 2 cm/year, corresponding to 1 to 2 billion US$/year (an amount comparable to the country’s annual budget). The higher soil loss has been estimated at Southern Ethiopia where densely settled on highlands. A vast majority of the population derives its livelihood from forest, livestock herding and agriculture. The economic conditions force the rural poor to exploit the environment for their survival. Keeping the importance, the work was conducted in Silti Woreda, Southern Ethiopia, with the objectives; to identify the current status and trend of soil conservation practices, to assess the socio-cultural, economic, biophysical and institutional/policy/support system constraints for the implementation and maintenance of conservation practices. The study reveals, indigenous soil conservation technologies are considered as effective methods of conservation. But, population poverty and unawareness are major constraints. Ključne besede: soil conservation, agriculture, backwardness, indigenous method, topography Objavljeno v DKUM: 10.04.2018; Ogledov: 1174; Prenosov: 124
Celotno besedilo (1,96 MB) Gradivo ima več datotek! Več... |
3. UV N2 laser ablation of a Cu-Sn-Zn-Pb alloy: microstructure and topography studied by focused ion beamFranc Zupanič, Tonica Bončina, Davor Pipić, Višnja Henč-Bartolič, 2008, izvirni znanstveni članek Ključne besede: materials investigation, microstructure, topography, copper alloys, laser, focused ion beams, UV nitrogen laser pulses, Scanning Electron Microscopy, laser ablation Objavljeno v DKUM: 01.06.2012; Ogledov: 2299; Prenosov: 140
Povezava na celotno besedilo |