American Journal of Geographical Research and Reviews


A Verification Method of Thermo- infrared Remote Sensing Temperature Retrieval Algorithm with a CFD Model

Research Article of American Journal of Geographical Research and Reviews A Verification Method of Thermo- infrared Remote Sensing Temperature Retrieval Algorithm with a CFD Model Yong Zhang1,*, Zhiqiang Yao1, Yingbao Yang2, Leqin Zhang1, Xin Pan2 1College of Natural Resources and Environment, Chizhou University, No.199 Muzhi Road,Chizhou 247000, China 2School of Earth Science and Engineering, Hohai University, 8 Buddha CityWest Road, Nanjing 210098,China Due to the thermal infrared remote sensing inversion of surface corresponds to the surface temperature of the image pixels is planar, the inversion algorithm of authentication, rarely considering the reference temperature data and inversion of surface temperature on like yuan scale problems.ENVI - met based on the CFD model to simulate the nanjing jiangning district land surface temperature, and by the methods of measurement of analog temperature verification, proved ENVI - met the error of the model to simulate the surface temperature of 0.6 0C, meet the verification accuracy of temperature inversion algorithm.Using ENVI - met model of Landsat8 data. Keywords: land surface temperature; CFD; ENVI-met; cross validation ...

Regionalisation of hydrological model parameters in nested catchments

Research Article of American Journal of Geographical Research and Reviews Regionalisation of hydrological model parameters in nested catchmentss Shailesh Kumar Singh National Institute of Water and Atmospheric Research, Christchurch, New Zealand A prediction in ungauged basins is one of the challenging tasks for a hydrologist of this century. Even though the physically based hydrological models can be the more appropriate in ungauged basins but data requirement limit the use. Conceptual hydrological models are simple and easy to use. But these model needs calibration before it can be used. Availability of data at all location in the basin limits the calibration of conceptual hydrological models. In this study, a calibration methodology is presented for discharge series limited condition using upstream and downstream data from nested catchment. It has been found that reasonable model parameters can be estimated for middle catchment using immediate upstream and downstream data. The regionalised parameter at the catchment outlet was tested at several locations inside the catchment to test the suitability of the outlet based model parameter for the interior location along the channel. It has been found that the model parameters obtained at the outlet of the catchment by regionalisation methods can be applied to the neighbouring points along the channel. A conceptual hydrological model, HBV-IWS was used for on upper Neckar catchment to demonstrate the methodology. Keywords: Regionalisation, HBV-IWS, Upstream downstream ...

Perceptions of Ghanaian Migrant Mothers Living in London towards Postnatal Depression during Postnatal Periods

Research Article of American Journal of Geographical Research and Reviews Perceptions of Ghanaian Migrant Mothers Living in London towards Postnatal Depression during Postnatal Periods Edith Dei-Anane1, Adjoa Afriyie Poku2, Simon Boateng3, Kwabena Osei Poku4, Emmanuel Amankwa3 and Abena Nkrumah Adasa5 1Adult Social Care, P.O Box 78 County Hall, Fishergate, Preston, Lancashire, PR1 8XJ; 2Lecturer, University of Education, Winneba: Department of Geography Education; 3Tutor, St. Monica’s College of Education, Department of Social Studies, P.O Box MA 250, Mampong-Ashanti; 4Graduate Institute of International Development and Applied Economics, University of Reading, UK; 5Tutor, St. Monica’s College of Education, Department of Science, P.O Box MA 250, Mampong-Ashanti; The concept of postnatal depression might be constructed differently by people with different cultures resulting in the adoption of different coping mechanisms. Ghanaian migrant mothers living in London are no exception. The aim of this paper is to examine the perception of Ghanaian migrant mothers living in London towards postnatal depression during the postnatal period. In-depth interviews, augmented with informal conversations, were conducted with 25 Ghanaian migrant mothers who were within the postnatal period in London. Data were thematically analysed and presented. The study found that although Ghanaian migrant mothers reported experiencing stressful situations due to breastfeeding, infant temperament, lack of social support and housing problems, they were reluctant to seek help from maternal mental health services because they did not trust those health professional they encountered. Ghanaian migrant mothers appreciated the support of health visitors but the absence of family support increased their stressful situations. They, therefore, sought help when they are depressed mostly from religious leaders, friends, and distanced relatives while in London. We argue that since the Ghanaian migrant mother is a subsystem of her larger family which consist of individual elements such as the spouse or partner and her child and also relates with ...

Theoretical Framework And Its Relevance To Geographic Studies: An Application Of Innovation Diffusion Theory In CWM

Research Article of American Journal of Geographical Research and Reviews Theoretical Framework And Its Relevance To Geographic Studies: An Application Of Innovation Diffusion Theory In CWM Innocent E. Bello 1* and Matthew E. Ufuah 2 1National Space Research and Development Agency, PMB 437 Garki 2, FCT- Abuja, Nigeria 2Ambrose Alli University, PMB 14 Ekpoma Edo State, Nigeria This paper examines the meaning of concept, theory and theoretical framework and their relevance in geographic studies. In particular, the paper discussed the rationale behind the formulation and application of theoretical framework in carrying out a reliable geographic study. A categorical distinction in the use of ‘concept’ and ‘theory’ interchangeably was established and it was reiterated that every science has a goal, especially in the understanding and explanation of the real world phenomena. The paper also reiterated that although geography is short on theories and long on facts, yet development of theory seems to be vital both to satisfactory explanations and to the identification of geography as an independent field of study. An empirical application of innovation diffusion theory in geographic study (collaborative web mapping – CWM) is presented. The paper concludes that, like the human body, a theoretical framework plays a central role in geographic studies because it is the skeleton on which principles, methods and overall research goals are hinged. Keywords: Concept, Geographic Studies, Theory, Theoretical Framework ...

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American Journal of Geographical Research and Reviews

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