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JICAにより2025年11月に実施されたイラン国別研修「地方自治体における３Rを含む廃棄物管理処理能力の向上」において、11月10日に「廃プラスチック問題とその国際政策動向」に関する講義・研修を実施した。参加者とは特に、プラスチック国際条約のINCでの議論およびイランの対応などについて意見交換を行った。日本語での発表を行い、ペルシャ語で逐次通訳が行われた。

Aq’Qala county has been categorized as a high flood-prone area in Iran, and faced many major flood events in last two decades (e.g. in 2001, 2002, 2007, 2012, 2017, and 2019). The main aim of the current study is to produce and validate flood vulnerability rate (FVR) maps of this area relying on geospatial data. Vulnerability criteria were...

Climate change and overpopulation have led to an increase in water demands worldwide. As a result, land subsidence due to groundwater extraction and water level decline is causing damage to communities in arid and semiarid regions. The agricultural plain of Samalghan in Iran has recently experienced wide areas of land subsidence, which is...

Soil moisture is a critical component for Earth science studies, and Synthetic Aperture Radar (SAR) data have high potential for retrieving soil moisture using backscattering models. In this study, polarimetric SAR (PALSAR: Phased Array type L-band Synthetic Aperture Radar) data and polarimetric decompositions including span, entropy/H/alpha, and...

In this study, we measured and characterized the relative dielectric constant of mineral soils over the 0.3–3.0 frequency range, and compared our measurements with values of three dielectric constant simulation models (the Wang, Dobson, and Mironov models). The interrelationship between land cover and soil texture with respect to the dielectric...

HLPF2019 IGESSide Event “From Science to Implementation: Strengthening the Science Policy Interface (SPI) to Integrate Climate Change, Resilience, and the SDGs” on 11thJuly 2019, UNHQ, NY

Generally, the characterization of land surface roughness is obtained from the analysis of height variations observed along transects (e.g., root mean square (RMS) height, correlation length, and autocorrelation function). These surface roughness measurements are then used as inputs for surface dynamics modeling, e.g., for soil erosion modeling...

This paper presents a collective sensing approach that integrates imperfect Volunteered Geographic Information (VGI) obtained through Citizen Science (CS) tree mapping projects with very high resolution (VHR) optical remotely sensed data for low-cost, fine-scale, and accurate mapping of trees in urban orchards. To this end, an individual tree crown...

Based on the accumulated experiences and outputs of SDGs studies and policy suggestions in 9 countries IGES implemented and provided, this presentation identifies the priority areas for SDGs studies in general at a country level which to be applied for North Korea (N.Korea). In addition, reflecting the features of political, economic and social...

This is a final report on the project for accelerating Asian regional collaboration on Environmental Impact Assessment, under a lump-sum Ukeoi contract with MOEJ in FY2014. The Project consists of four components: i) In-depth study on policy and implementation of country EIA system in six countries, namely Cambodia, Korea, Indonesia, Myanmar...