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Education
August 2005 - August 2010
Publications
Publications (82)
High pathogenicity avian influenza (HPAI) H5N1 2.3.4.4b poses a substantial conservation threat to ecosystems, populations, and species globally, with its continued spread into new regions increasing concern for potential ecological consequences. During surveys in February-March 2025, we confirmed the virus presence at the southern extent of its kn...
This study aims to determine the abundance and distribution of organic pollutants in the coastal areas of Mt. Vechernyaya (Enderby Land, East Antarctica). For this purpose, soil and sediment samples were collected from the vicinity of the old Soviet field base and lakes. The field studies were conducted within the 14th Belarusian Antarctic Expediti...
The Svalbard region is characterised by extreme weather conditions, ice-covered waters, low temperatures, limited communication infrastructure, and uncharted areas. These factors collectively pose significant risks to maritime safety and necessitate a thorough understanding of the region’s specific challenges. This study addresses some of these cha...
The relevance of education and outreach (E&O) activities about the Antarctic Treaty has been recognized at the Antarctic Treaty Consultative Meetings (ATCM) and at the Committee for Environmental Protection (CEP). This study examines the key topics and the target audiences detailed in papers submitted to the ATCM on E&O. Since the Antarctic Treaty...
This chapter investigates the significant role of AI-supported remote sensing (RS) studies in the polar cryosphere, focusing on both Antarctica and the Arctic. Recent developments in RS, including high-resolution satellite imagery and varied sensor capabilities, have considerably improved data collection, while AI techniques, including machine- and...
The Arctic region is warming significantly faster than the global average, with the resultant warming effects in the other areas being directly or indirectly linked to the rise in aerosols and changes in greenhouse gas emissions. Given the sensitivity of the region's climate to radiative forcings, it is crucial to conduct long-term monitoring of ae...
Küresel iklim değişikliği süreçlerinin daha iyi anlaşılabilmesi ve insanlığın gelecekteki süreçlere uyum sağlayabilmesi açısından buzul alanlardaki değişikliklerin izlenmesi önem taşımaktadır. Buzul değişimlerinin takibi için kullanılan yöntemlerden birisi olan insansız hava aracı (İHA) fotogrametrisi ile kriyosferin ve buzul değişikliklerinin yüks...
From the past to the present, the body of water, which covers about
two-thirds of the world, has been investigated by different methods.
Hydrography, oceanography and bathymetry have been applied to
underwater habitat, hydrological cycle and climate change. With the
application of bathymetric studies in inland waters, it plays a role in
monitoring...
Global climate change is a phenomenon that seriously affects the balance of a wide variety of ecosystems and is the intense focus of climate scientists and environmental researchers. In this context, periodic monitoring of glacier areas in terms of a better understanding of atmosphere-ocean interactions; thus, predicting the effects of climate chan...
Science festivals are crucial events that bring together scientists and the public, where information flow and interaction are intense. The first online Polar Festival organized by TÜBİTAK Marmara Research Center Polar Research Institute is one of these events. With this research, the opinions of the participants of the TÜBİTAK Polar Festival held...
Antarktika bulunduğu konum ve iklim özellikleri sebebiyle insanların aktif olarak yaşamadığı bir kıtadır. Bu nedenle Antarktika kıtasındaki coğrafi bilgi üretimi farklı açılardan kısıtlıdır. Geleneksel haritalama teknolojileri olarak kabul edilen uzaktan algılama, fotogrametri ve yersel ölçme yöntemleri ile Antarktika dijital veri tabanına katkı su...
Sea ice has a significant impact on numerous areas, ranging from the reflection of the sun rays back on the albedo scale, to spurring intense phytoplankton blooms that help maintain the marine ecosystem and making the navigation of some maritime routes challenging. The formation of sea ice in the Southern Ocean affects maritime logistics and scient...
The Antarctic continent, which has the most challenging field conditions on our planet in terms of science, natural elements that make human life almost impossible, and high-cost logistics requirements, has been hosting polar science research by Turkish scientists in recent years. Our country's first National Antarctic Science Expedition to the fro...
This note reports observations of two moulting emperor penguins (Aptenodytes forsteri) on Horseshoe Island, West Antarctica, during the Seventh Turkish Antarctic Expedition in February 2023. This is the first time this species has been documented on this island. Emperor penguins largely depend on fast-ice to breed and moult. The Antarctic Peninsula...
Kutuplar dünyada eşsiz bilimsel çalışmaların yapılabildiği, okyanuslardan atmosfer katmanlarına kadar farklı alanlarında da birçok disiplinler arası çalışmaların gerçekleştirilebildiği en izole bölgelerdir. Arktik ve Antarktika bölgeleri özellikle uluslararası alanda bilimsel çalışmalara ev sahipliği yaparken 2017 yılından bu yana artan ivme ile öz...
Arctic Region (AR); Its role in global climate change, recently opened commercial sea routes, unexploited industrial resources, unique polar ecosystem, and international geopolitical balance making it a strategic area that attracts the attention of many countries. In this aspect, the Arctic Council carries out various studies and international coop...
Arctic Region (AR); Its role in global climate change, recently opened commercial sea routes, unexploited industrial resources, unique polar ecosystem and international geopolitical balance making it a strategic area that attracts the attention of many countries. In this aspect, the Arctic Council carries out various studies and international coope...
The Antarctic Continent, which has the most challenging environmental-field conditions such as high cost logistics needs, extreme weather events, and natural elements that makes impossible to live for most of the living things including humans, in terms of to carry out scientific research, has hosting scientific projects of Turkish scientists in re...
The Russian Federation has a great advantage in the Arctic Ocean because of its long coastline which also has less sea ice concentration in summer to allow vessels to pass with ease. Due to newly opening polar routes in the Arctic, maritime logistics, port and maritime affairs have become more sensitized for Arctic Council countries. But this incre...
Svalbard has undergone a major transformation since 1960s upon the Norwegian government's shifting focus from mining town into scientific activities. While the Spitsbergen Treaty provides a common ground for international scientific collaboration, the installation of satellite ground station by European Space Research Organization (ESRO) in Ny-Åles...
The Southern Ocean plays a central role in the Earth System by connecting the Earth’s ocean
basins, and it is a crucial link between the deep ocean, surface ocean and atmosphere. Hence,
the ongoing changes in the Southern Ocean impact global climate, rates of sea level rise,
biogeochemical cycles and ecological systems. Yet, understanding of the ca...
Mineral resource activities in Antarctica were brought to the agenda at the 6th Antarctic Treaty Consultative Meeting (ATCM) held in Tokyo for the first time in 1970. The Convention on the Regulation of Antarctic Mineral Resource Activities (CRAMRA), which regulates the issue in detail, could not enter into force after France and Australia decided...
The concept of science diplomacy, which is located at the nexus of science and foreign
policy, has been frequently on the agenda in recent years in parallel with the
negative effects of global climate change owing to its potential to provide a common
ground for bilateral and multilateral scientific cooperation between states. Since
the conceptualiz...
The concept of science diplomacy, which is located at the nexus of science and foreign policy, has been frequently on the agenda in recent years in parallel with the negative effects of global climate change owing to its potential to provide a common ground for bilateral and multilateral scientific cooperation between states. Since the conceptualiz...
Since the Arctic region warms up three times faster compared to other regions of the world, the development of expedient adaption and response strategies becomes an imperative process in which all actors are centrally preoccupied. Therefore, general knowledge gaps such as insufficient studies regarding different spatial and temporal scales and limi...
Deniz buzları, dünyanın albedo cetvelinde yadsınamaz derecede dengeleyici rol üstlenen; kutup bölgelerinde denize bağlı yaşam sürdüren canlılar için vazgeçilmez bir ekosistem oluşturan; tüm okyanusların akıntı sisteminin devam edebilmesi ile iklimlerin şekillenmesinde önemli görev üstlenen ve gemilerin seyrine büyük oranda engel olarak tabiatı insa...
9 Şubat 1920 tarihinde Paris’te imzalanan Spitsbergen Antlaşması tüm taraf devletlerin onaylamasının ardından 14 Ağustos 1925 tarihinde yürürlüğe girmiş ve daha öncesinde hiçbir devlete bağlı olmayan Takımadalar barışçıl maksatlarla kullanılmak ve adil bir şekilde yönetilmek üzere Norveç’in tam ve mutlak egemenliğine bırakılmıştır. Bununla birlikte...
In the global economy of the 21st century, the production of information and technology and the process of its transformation into economic benefit have become the most important parameter in the relative distribution of power among states. Intending to have a larger share of the global economic pie, Turkey has been trying to conduct an efficient p...
There is much evidence that ongoing global climate change has tremendous impacts on the Arctic and Antarctic environment. One of the significant effects of global climate change on polar regions is diminishing sea ice extent (SIE). Decreased SIE results in accessibility for maritime activities, which pose more threats to the fragile polar environme...
In addition to its oil and natural gas reserves, the Arctic Region has started to gain importance as a new transportation route in the global trade geopolitics with the initiatives of Russia, China and partially Canada since the early 2000s, as it offers shorter alternatives to traditional shipping routes. Along with the negative effects of the glo...
THE CENTENNIAL OF THE SVALBARD TREATY AND THE ARCTIC REGION
Y. Barbaros BÜYÜKSAĞNAK(1), Burcu ÖZSOY (2), Özgün OKTAR(3)
(1) Pîrî Reis University,
(2,3) TÜBİTAK Marmara Research Center Polar Research Institute, Istanbul Technical University.
(*ybbuyuksagnak@pirireis.edu.tr)
Abstract
The Svalbard (Spitsbergen) Treaty signed in Paris on 9 Februa...
Microplankton is composed of organisms between 20 and 200 µm in size (greatest axial linear dimension) and is a mixture of phytoplankton and zooplankton. It is an important component of the marine pelagic ecosystem not only as primary producers but also as consumers in the microbial loop. In the present paper, the results of microplankton species a...
1959 yılında imzalanan Antarktika Antlaşması’na 1995 yılında taraf olan ülkemizin, Antarktika ile ilgili ulusal girişimleri ise 2015 yılında İstanbul Teknik Üniversitesi Kutup Araştırmaları Uygulama ve Araştırma Merkezi’nin kurulması ile başlamıştır. 2017 yılında Cumhurbaşkanlığı himayelerine alınan Antarktika Bilimsel Araştırma Üssü Projesi ile hı...
Snow depth on sea ice is a major constituent of the marine cryosphere. It is a key parameter for the derivation of sea-ice thickness from satellite altimetry. One way to retrieve the basin-scale snow depth on sea ice is by satellite microwave radiometry. There is evidence from measurements and inter-comparison studies that current retrievals likely...
Birinci Dünya Savaşı'nın sona ermesinin ardından 1920 tarihinde Paris'te imzalanan bir antlaşmayla statüsü belirlenen Svalbard (Spitsbergen) takımadaları Norveç'in egemenliğinde olsa da uluslararası kimliğiyle, küresel iklim değişikliği nedeniyle son yıllarda dünyanın gündeminde ön sıralarda yer alan Arktik bölge içindeki özel ve önemli konumunu he...
The Southern Ocean is disproportionately important in its effect on the Earth system, impacting climatic, biogeochemical, and ecological systems, which makes recent observed changes to this system cause for global concern. The enhanced understanding and improvements in predictive skill needed for understanding and projecting future states of the So...
POLITICAL VIEW OF THE ARCTIC SHIPPING
Y.Barbaros BÜYÜKSAĞNAK, Burcu ÖZSOY
Pîrî Reis University, Istanbul Technical University
Climate change and the associated warming of the Arctic Ocean and marginal seas has caused the shipping routes to emerge more attractively in the high north region. Arctic Ocean’s melting ice and technological development...
Arktik bölgesindeki Svalbard (Spitsbergen) takımadaları dünyanın en kuzeyinde yer alan yerleşim alanlarından birisidir. Norveç, 1920 tarihinde imzalanan Svalbard Antlaşması maddelerine uygun olarak bu adalar üzerinde tam ve mutlak egemenlik haklarını kullanmaktadır. Son dönemlerde Arktik bölgesinin dünyadaki önemi arttıkça, Svalbard Adaları'nın da...
As the Arctic is increasingly becoming one of the focus points of international community, Svaldbard Islands, with its location, rich wildlife, arctic nature, and old mining towns also draw attention of the states which are interested in the region. The 1920 Svalbard Treaty confers full and absolute sovereignty on Norway. Nevertheless, under the Tr...
The RRDP sea ice concentration is a dataset of comma separated ASCII (text) files which contain reference sea ice concentrations and/or other relevant data and co-located NWP data from ERA-Interim, satellite Brightness Temperatures (TBs) extracted from the AMSR-E/AMSR2 swath datasets, ASCAT, QuikSCAT, SMOS and SMAP data to be used to for ice concen...
The ships in unloaded condition carry the sea water taken into the ballast tanks in order to ensure the stability of the ship. The ballast taken on in the coastal waters in one region after cargo unloading operation must be discharged at the next port of call. Thousands of organisms travel around the world in ballast water which is carried in the b...
Accurate circum-Antarctic sea-ice thickness is urgently required to better understand the different sea-ice cover evolution in both polar regions. Satellite radar and laser altimetry are currently the most promising tools for sea-ice thickness retrieval. We present qualitative inter-comparisons of winter and spring circum-Antarctic sea-ice thicknes...
Deriving the snow depth on Antarctic sea ice is a key factor in estimating sea-ice thickness distributions from space or airborne altimeters. Using a linear regression to model snow depth from observed ‘total freeboard’, or the snow/ice surface elevation relative to sea level is an efficient and promising method for the estimation of snow depth for...
Türkiye’nin kıyı bölgesi deniz çevresi, iklimi, nakliye, balıkçılık, su-kültür ve turizmi bakımından önemli bir rol oynar.
Snow on Antarctic sea ice plays a key role for sea ice physical processes and complicates retrieval of sea ice thickness using altimetry. Current methods of snow depth retrieval are based on satellite microwave radiometry, which perform best for dry, homogeneous snow packs on level sea ice. We introduce an alternative approach based on in-situ meas...
One of the goals of phase 1 of the European Space Agency’s (ESA) climate change initiative (CCI) sea ice project (SICCI project) was to investigate the suitability of satellite altimetry for Antarctic sea ice thickness (SIT) retrieval. Different algorithms based on satellite laser altimetry using the Ice, Cloud, and land Elevation Satellite (ICESat...
Poster at IGS-2014, March 2014, Hobart, Tasmania
Sea ice is an essential part in the Climate System. Sea ice is further an impediment for navigation and off-shore activities in the Polar Regions. It reacts sensitively to changes in environmental conditions determining its formation and melt. This chapter gives an introduction into sea ice and describes parameters and terms relevant to understand...
Snow is an important component of the Antarctic marine cryosphere. Snow on sea ice increases the sea ice albedo, isolates the sea ice from the atmosphere and contributes to the Antarctic sea ice volume via snow-ice formation. Growth and melt of Antarctic sea ice is closely linked to the snow cover and its properties, mainly its depth. The physical...
Shipping and maritime activities may cause a great amount of oil pollution on the sea surface; such as ship transportation, oil platforms and ports. There are some deterrent applications to provide cleaner and safer seas. Timely identification of extent and source of oil pollution is mandatory for mitigation of its impact and prosecution of the ori...
In situ measurements of sea ice thickness (I), snow depth (S), and snow freeboard (Fsn) from drilling profile lines from 15 cruises into the Southern Ocean, Antarctica, were analyzed. I was calculated from in situ Fsn and S using an isostatic approach. I was also directly estimated from Fsn as can be obtained from laser altimetry. The root-mean-squ...
Sea ice is an important component of the Earth’s cryosphere. Observed and expected changes in the Earth’s climate system at the high latitudes are found to be partly linked to changes in the sea ice cover. The main characteristics describing the sea ice cover are A) the sea ice area fraction, B) the sea ice thickness, C) the sea ice motion, D) the...
Remote sensing techniques play an important role for environmental applications. The study area of remote sensing in different fields varies wide such as agriculture, forestry, geology, hydrology, sea ice, land cover, land use, coastal monitoring, and ocean monitoring. Latter have an important factor for environment, when considering that Oceans co...
Envisat Advanced Synthetic Aperture Radar (ASAR) Wide Swath Mode (WSM) images are used to derive C-band HH-polarization normalized radar cross sections (NRCS). These are compared with ice-core analysis and visual ship-based observations of snow and ice properties observed according to the Antarctic Sea Ice Processes and Climate (ASPeCt) protocol du...
Antarctic Sea Ice Processes and Climate (ASPeCt) visual ship-based observations were conducted in the Bellingshausen Sea during the Sea Ice Mass Balance in the Antarctic (SIMBA) cruise in austral spring 2007. A total of 59 ASPeCt observations are compared to coincident satellite active and passive microwave data. Envisat and RADARSAT-1 C-Band HH-po...
Advanced Microwave Scanning Radiometer (AMSR-E) snow-depth data for Antarctic sea ice are compared with ship-based visual observations of snow depth, ice type and ridged-ice fraction, and with satellite C-band and Ku-band radar backscatter observations for two ship cruises into the Weddell Sea (ISPOL 2004–05, WWOS 2006) and one cruise into the Bell...
Antarctic Sea Ice Processes and Climate (ASPeCt) ship-based ice observations, conducted during the Sea Ice Mass Balance in the Antarctic (SIMBA) and Sea Ice Physics and Ecosystem eXperiment (SIPEX) International Polar Year (IPY) cruises (September-October 2007), are used to validate remote-sensing measurements of ice extent and concentration. Obser...
Envisat Advanced Synthetic Aperture Radar (ASAR) Wide Swath Mode (WSM) images are used to derive C-band HH-polarization normalized radar cross sections (NRCS). These are compared with ice-core analysis and visual ship-based observations of snow and ice properties observed according to the Antarctic Sea Ice Processes and Climate (ASPeCt) protocol du...
Sea ice is a fundamental component of the Earth's systems that cannot be
ignored in the large scale environmental predictions of future climate
conditions. Sea ice is a complex material and has major influences on
global climate with its large maximum extent and seasonal change. In
this research, remote sensing validation based on comparisons with...
For Antarctic sea ice, computing ice thicknesses from satellite laser or radar altimetry is still in a developmental state. In this study, data from sixteen Antarctic cruises, that had measurements of surface elevation (or snow depth), ice surface freeboard (height above or below sea level of the ice surface) and ice thickness were compiled and sta...
Antarctic sea ice cover has shown a slight increase (R2=0.41) and AMSR-E tends to underestimate the low ice concentrations. We also found that the NIC sea ice edge agrees well with ship observations, while the AMSR-E shows the ice edge further south, consistent with its poorer detection of low ice concentrations. The northward extent of the ice edg...
In this study, AMSR-E's (The Advanced Microwave Scanning Radiometer - Earth Observing System) geophysical product for ice concentration and ice edge location was compared to ice observations made aboard ship in the Antarctic pack ice during ODEN expedition (Swedish icebreaker) sponsored by United States National Science Foundation (NSF) as of the f...
The AMSR-E Sea Ice Temperature (L3 25 km) data product derived from passive microwave emissions at 6.9 GHz is available from the National Snow and Ice Data Center. The Sea Ice Temperature data represents the temperature at the surface of the sea ice, or the temperature corresponding to the snow-ice interface. Antarctic sea ice images from 2005 were...