Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Land surface emissivity variations at infrared wavelengths for the selected regions in Turkey
Download
index.pdf
Date
2011
Author
Akyüz, Berat
Metadata
Show full item record
Item Usage Stats
168
views
87
downloads
Cite This
In this thesis, land surface emissivity variations are examined with respect to the land surface type, wavelength, and time (season and month) for the seven selected regions in Turkey using MODIS emissivity database and precipitation amount. Investigating land surface emissivity variations are important in many applications and it is known that studies about these variations are done for many regions except Turkey. This study is prior knowledge for Turkey to be used in infrared (IR) background models, surface radiation budget calculations, and land cover type classifications specific for Turkey. The results indicate that precipitation has a great influence on monthly/seasonal emissivity values depending on the land cover type and causes spectral emissivity variations. As a result, we determined appropriate IR wavelengths for the investigation of the seasonal emissivity variations and seasonal factors causing emissivity variations according to the land cover types.
Subject Keywords
Vegetation surveys .
URI
http://etd.lib.metu.edu.tr/upload/12613574/index.pdf
https://hdl.handle.net/11511/21092
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Doğu Akdeniz bölgesindeki aerosollerin iklimsel önemi
Kubilay, Nilgün; Koçak, Mustafa(2009)
The current study considers the spatial and temporal variability in aerosol water soluble ions (Na+ , NH4 + , K+ , Mg2+, Ca2+, Cl- , NO3 - , SO4 2-, C2O4 2 ) concentrations and aerosol optical measurements in the eastern Mediterranean, utilizing an extensive data library collected in 2003 at two stations along the Turkish (Erdemli) and Cretan (Finokalia) coastline. In addition, aerosol samples were collected aboard the research vessel’s BILIM II cruising the eastern Mediterranean, Aegean Sea, the Sea of Mar...
Conditional Copula-Based Spatial-Temporal Drought Characteristics Analysis-A Case Study over Turkey
Afshar, Mahdı Hesamı ; Yılmaz, Mustafa Tuğrul (2016-10-01)
In this study, commonly used copula functions belonging to Archimedean and Elliptical families are fitted to the univariate cumulative distribution functions (CDF) of the drought characteristics duration (LD), average severity (S), and average areal extent (A) of droughts obtained using standardized precipitation index (SPI) between 1960 and 2013 over Ankara, Turkey. Probabilistic modeling of drought characteristics with seven different fitted copula functions and their comparisons with independently estima...
Türkiye’de İklim Değişikliğinin Buğday Verimi Üzerine Etkileri: Bir Heterojen Panel Çalışması
Eruygur, Hakkı Ozan; Özokcu, Selin (2016-10-01)
In this study, the impacts of climate related variables such as temperature, maximum temperature, precipitation, solar radiation on wheat yield are estimated by using a regional panel data (NUTS2) for Turkey. The estimated coefficients are used to simulate the impacts of climate change on wheat yield in Turkey until 2100. The humidty coefficient (nks) of Aydeniz climate classification, July Maximum Temperature and August Maximum Temperature are also used in the estimations. The regional effects (for seven r...
Sensitivity and sea surface temperature analyses of WRF model for predicting heavy rainfall events observed in Eastern Black Sea and Mediterranean regions of Turkey
Pilatin, Heves; Yücel, İsmail; Kentel Erdoğan, Elçin; Department of Earth System Science (2020-8)
With this thesis it is aimed to enhance the prediction accuracy of the Weather Research and Forecasting (WRF) model on the extreme precipitation events of Mediterranean and Eastern Black Sea regions of Turkey. While the first part of sensitivity analysis was conducted for the physical parameters (microphysics, cumulus and PBL) and the initial boundary conditions, the second part has only focused on the impact of sea surface temperature (SST). After choosing 4 microphysics, 3 cumulus, 2 PBL and 2 input meteo...
Land surface modeling using optimally merged Precipitation data from multiple sources
Yılmaz, Mustafa Tuğrul; Houser, Paul R; Anantharaj, Valentine (2008-12-15)
Precipitation plays a primary role in driving the terrestrial branch of water and energy cycles and is arguably the most significant forcing to affect land surface conditions. However our observational knowledge of precipitation is limited. Ground and satellite based observations have limited spatial and temporal coverage, and numerical model simulations are limited by various physical and dynamic simplifications such as inadequate cloud and convection processes. Given the availability of multiple precipita...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
B. Akyüz, “Land surface emissivity variations at infrared wavelengths for the selected regions in Turkey,” M.S. - Master of Science, Middle East Technical University, 2011.