The Experts below are selected from a list of 58920 Experts worldwide ranked by ideXlab platform

Sayed Ali Mousavi - One of the best experts on this subject based on the ideXlab platform.

  • the spatial assessment of suitable areas for medicinal species of astragalus astragalus hypsogeton bunge using the analytic hierarchy process ahp and geographic information system gis
    The Egyptian Journal of Remote Sensing and Space Science, 2019
    Co-Authors: Issa Piri, Mahboobeh Moosavi, Ali Zargham Taheri, Hamid Alipur, Saeed Shojaei, Sayed Ali Mousavi
    Abstract:

    Abstract Climatic variation and different ecological conditions is led to the species diversity and richness of medicinal plants throughout the country. In this study, the effective criteria were identified in determining suitable areas for the Astragalus; including the six main criteria of precipitation, temperature, slope, altitude, soil texture and orientation, based on the purpose of the study and regional characteristics, field surveys, local information and expertise opinions. The Analytic Hierarchy Process (AHP), Pair comparison method and expert choice “11” software were used to determine the incompatibility rate of the criteria based on the questionnaire. The basic researches and integration of informative layers were done using GIS. Therefore, suitable areas were obtained for Astragalus hypsogeton Bunge in the Bahar Mountains catchment, using overlaying of maps. The results showed that the class of more than 2400 m height with relative importance of 0.5172 and 2100–2400 m, and the relative importance of 0.2702 are located on the first and second priority to locate Astragalus hypsogeton Bunge in Bahar Mountain catchment. Furthermore, the tree main criteria of altitude, precipitation and temperature have been allocated the most relative importance of 0.33, 0.22 and 0.16, respectively and located on the top Three Priorities. 1354.3 ha of the total area of Bahar Mountain catchment was identified as a suitable area for Astragalus hypsogeton Bunge. The study could ultimately show that it can be obtained an optimal locality to identify medicinal plants in different areas using modern technology, GIS and AHP with minimal cost and time.

Issa Piri - One of the best experts on this subject based on the ideXlab platform.

  • the spatial assessment of suitable areas for medicinal species of astragalus astragalus hypsogeton bunge using the analytic hierarchy process ahp and geographic information system gis
    The Egyptian Journal of Remote Sensing and Space Science, 2019
    Co-Authors: Issa Piri, Mahboobeh Moosavi, Ali Zargham Taheri, Hamid Alipur, Saeed Shojaei, Sayed Ali Mousavi
    Abstract:

    Abstract Climatic variation and different ecological conditions is led to the species diversity and richness of medicinal plants throughout the country. In this study, the effective criteria were identified in determining suitable areas for the Astragalus; including the six main criteria of precipitation, temperature, slope, altitude, soil texture and orientation, based on the purpose of the study and regional characteristics, field surveys, local information and expertise opinions. The Analytic Hierarchy Process (AHP), Pair comparison method and expert choice “11” software were used to determine the incompatibility rate of the criteria based on the questionnaire. The basic researches and integration of informative layers were done using GIS. Therefore, suitable areas were obtained for Astragalus hypsogeton Bunge in the Bahar Mountains catchment, using overlaying of maps. The results showed that the class of more than 2400 m height with relative importance of 0.5172 and 2100–2400 m, and the relative importance of 0.2702 are located on the first and second priority to locate Astragalus hypsogeton Bunge in Bahar Mountain catchment. Furthermore, the tree main criteria of altitude, precipitation and temperature have been allocated the most relative importance of 0.33, 0.22 and 0.16, respectively and located on the top Three Priorities. 1354.3 ha of the total area of Bahar Mountain catchment was identified as a suitable area for Astragalus hypsogeton Bunge. The study could ultimately show that it can be obtained an optimal locality to identify medicinal plants in different areas using modern technology, GIS and AHP with minimal cost and time.

Dufresne Jean-louis - One of the best experts on this subject based on the ideXlab platform.

  • IPSL-CM5A2 – an Earth system model designed for multi-millennial climate simulations
    'Copernicus GmbH', 2020
    Co-Authors: Sepulchre Pierre, Caubel Arnaud, Ladant Jean-baptiste, Bopp Laurent, Boucher Olivier, Braconnot Pascale, Brockmann Patrick, Cozic Anne, Donnadieu Yannick, Dufresne Jean-louis
    Abstract:

    International audienceBased on the fifth phase of the Coupled Model Intercomparison Project (CMIP5)-generation previous Insti-tut Pierre Simon Laplace (IPSL) Earth system model, we designed a new version, IPSL-CM5A2, aiming at running multi-millennial simulations typical of deep-time paleocli-mate studies. Three Priorities were followed during the setup of the model: (1) improving the overall model computing performance, (2) overcoming a persistent cold bias depicted in the previous model generation and (3) making the model able to handle the specific continental configurations of the geological past. These developments include the integration of hybrid parallelization Message Passing Interface-Open Multi-Processing (MPI-OpenMP) in the atmospheric model of the Laboratoire de Météorologie Dynamique (LMDZ), the use of a new library to perform parallel asynchronous in-put/output by using computing cores as "I/O servers" and the use of a parallel coupling library between the ocean and the atmospheric components. The model, which runs with an atmospheric resolution of 3.75 • × 1.875 • and 2 to 0.5 • in the ocean, can now simulate ∼ 100 years per day, opening new possibilities towards the production of multi-millennial simulations with a full Earth system model. The tuning strategy employed to overcome a persistent cold bias is detailed. The confrontation of a historical simulation to climatological observations shows overall improved ocean meridional overturning circulation, marine productivity and latitudinal position of zonal wind patterns. We also present the numerous steps required to run IPSL-CM5A2 for deep-time paleocli-mates through a preliminary case study for the Cretaceous. Namely, specific work on the ocean model grid was required to run the model for specific continental configurations in which continents are relocated according to past paleogeo-graphic reconstructions. By briefly discussing the spin-up of such a simulation, we elaborate on the requirements and Published by Copernicus Publications on behalf of the European Geosciences Union. 3012 P. Sepulchre et al.: IPSL-CM5A2 challenges awaiting paleoclimate modeling in the next years, namely finding the best trade-off between the level of description of the processes and the computing cost on super-computers

Dufresne J. L. - One of the best experts on this subject based on the ideXlab platform.

  • IPSL-CM5A2-an Earth system model designed for multi-millennial climate simulations
    2020
    Co-Authors: Sepulchre P., Caubel A., Ladant J. B., Bopp L., Boucher O., Braconnot P., Brockmann P., Cozic A., Donnadieu Y., Dufresne J. L.
    Abstract:

    Based on the fifth phase of the Coupled Model Intercomparison Project (CMIP5)-generation previous Institut Pierre Simon Laplace (IPSL) Earth system model, we designed a new version, IPSL-CM5A2, aiming at running multi-millennial simulations typical of deep-time paleoclimate studies. Three Priorities were followed during the setup of the model: (1) improving the overall model computing performance, (2) overcoming a persistent cold bias depicted in the previous model generation and (3) making the model able to handle the specific continental configurations of the geological past. These developments include the integration of hybrid parallelization Message Passing Interface - Open Multi-Processing (MPI-OpenMP) in the atmospheric model of the Laboratoire de Meteorologic Dynamique (LMDZ), the use of a new library to perform parallel asynchronous input/output by using computing cores as "I/O servers" and the use of a parallel coupling library between the ocean and the atmospheric components. The model, which runs with an atmospheric resolution of 3.75 degrees x 1.875 degrees and 2 to 0.5 degrees in the ocean, can now simulate similar to 100 years per day, opening new possibilities towards the production of multi-millennial simulations with a full Earth system model. The tuning strategy employed to overcome a persistent cold bias is detailed. The confrontation of a historical simulation to climatological observations shows overall improved ocean meridional overturning circulation, marine productivity and latitudinal position of zonal wind patterns. We also present the numerous steps required to run IPSL-CM5A2 for deep-time paleoclimates through a preliminary case study for the Cretaceous. Namely, specific work on the ocean model grid was required to run the model for specific continental configurations in which continents are relocated according to past paleogeographic reconstructions. By briefly discussing the spin-up of such a simulation, we elaborate on the requirements and challenges awaiting paleoclimate modeling in the next years, namely finding the best trade-off between the level of description of the processes and the computing cost on supercomputers

Mahboobeh Moosavi - One of the best experts on this subject based on the ideXlab platform.

  • the spatial assessment of suitable areas for medicinal species of astragalus astragalus hypsogeton bunge using the analytic hierarchy process ahp and geographic information system gis
    The Egyptian Journal of Remote Sensing and Space Science, 2019
    Co-Authors: Issa Piri, Mahboobeh Moosavi, Ali Zargham Taheri, Hamid Alipur, Saeed Shojaei, Sayed Ali Mousavi
    Abstract:

    Abstract Climatic variation and different ecological conditions is led to the species diversity and richness of medicinal plants throughout the country. In this study, the effective criteria were identified in determining suitable areas for the Astragalus; including the six main criteria of precipitation, temperature, slope, altitude, soil texture and orientation, based on the purpose of the study and regional characteristics, field surveys, local information and expertise opinions. The Analytic Hierarchy Process (AHP), Pair comparison method and expert choice “11” software were used to determine the incompatibility rate of the criteria based on the questionnaire. The basic researches and integration of informative layers were done using GIS. Therefore, suitable areas were obtained for Astragalus hypsogeton Bunge in the Bahar Mountains catchment, using overlaying of maps. The results showed that the class of more than 2400 m height with relative importance of 0.5172 and 2100–2400 m, and the relative importance of 0.2702 are located on the first and second priority to locate Astragalus hypsogeton Bunge in Bahar Mountain catchment. Furthermore, the tree main criteria of altitude, precipitation and temperature have been allocated the most relative importance of 0.33, 0.22 and 0.16, respectively and located on the top Three Priorities. 1354.3 ha of the total area of Bahar Mountain catchment was identified as a suitable area for Astragalus hypsogeton Bunge. The study could ultimately show that it can be obtained an optimal locality to identify medicinal plants in different areas using modern technology, GIS and AHP with minimal cost and time.