Physics and Chemistry of the Earth最新文献

{"title":"Seasonal precipitation changes in response to long-term aerosol anomalies: A case from West Africa","authors":"Anselem Onyejuruwa ,&nbsp;Zhenghua Hu ,&nbsp;Abu Reza Md Towfiqul Islam ,&nbsp;Matthews Nyasulu ,&nbsp;Kyaw Than Oo","doi":"10.1016/j.pce.2024.103847","DOIUrl":"10.1016/j.pce.2024.103847","url":null,"abstract":"<div><div>In southern West Africa (SWA), highly absorbing aerosol types can significantly alter precipitation trends. Therefore, it is essential to investigate the changes in precipitation anomalies from the dry season to the monsoon season. This study examines the impact of aerosol anomalies on precipitation trends and anomalies during the pre-monsoon season in the SWA region. The study analyzed monthly datasets of aerosol optical depth (AOD_550nm), precipitation, and atmospheric parameters from 1981 to 2020. The results base on anomaly and MK trend tests shows a decline in precipitation trends and anomalies across most of SWA during the last two decades (2001–2020). High positive spatial AOD anomalies corresponded with negative precipitation anomaly patterns. The regression analysis indicates a strong negative spatial correlation and slope between AOD and precipitation, especially along the coasts, with statistical significance for both periods. However, precipitation did not show a statistically significant relationship with zonal wind speed, geopotential height, or relative humidity at 850 hPa, even though these parameters exhibited stronger negative correlations and slope patterns over major cities in coastal SWA during the last two decades. The decrease in pre-monsoon precipitation anomalies suggests the dominance of aerosol-saturated atmosphere, which could diminish the influence of atmospheric parameters on cloud microphysics and precipitation, likely exacerbated by proximity to the ocean. The findings highlight the possible impact on the region's hydrological system due to amplification in aerosol concentrations; therefore, policies on emission control and mitigation are encouraged.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103847"},"PeriodicalIF":3.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reservoir potential of middle Jurassic carbonates in the Nizampur Basin, Pakistan: Insights from paleoenvironmental and diagenetic analyses","authors":"Waseem Khan ,&nbsp;Salman Ahmed Khattak ,&nbsp;Licheng Wang ,&nbsp;Yisi Zhong ,&nbsp;Nasar Khan ,&nbsp;Quan Wan ,&nbsp;Ihtisham Islam ,&nbsp;Anwar Qadir","doi":"10.1016/j.pce.2024.103842","DOIUrl":"10.1016/j.pce.2024.103842","url":null,"abstract":"<div><div>Depositional and diagenetic processes are the primary controls that impact the quality of carbonate reservoirs. The findings of a multiproxy study on carbonates of the Middle Jurassic Samana Suk Formation from the Nizampur Basin of Pakistan display a wide range of rock fabrics and diagenetic features, all affecting reservoir potential and flow properties in a complex manner. Based on petrographic and facies analyses, the model of a homoclinal ramp geometry with four characteristic microfacies types is proposed, including bioclastic mudstone, bioclastic wackestone, peloidal packstone, and bioclastic peloidal grainstone deposited in shoals, lagoons (restricted and relatively open conditions), and open marine environments. The Samana Suk Formation reservoir properties are shaped by diagenetic processes reflecting marine, meteoric, and burial diagenetic settings, such as the porosity being enhanced by fracturing, dolomitization, and dissolution, while cementation, chemical compaction, micritization, and neomorphism have reduced it. The 3-D microporosity in the form of vugs, intergranular, intercrystalline, and intraparticle pore spaces was unveiled through scanning electron microscopy (SEM). The net porosity of the formation could be enhanced by dissolution and fracturing, which makes it a better reservoir for petroleum exploration. The data shown here has been correlated with its nearby stratigraphic equivalents dealing with the Jumara Dome sediments of the Kachchh Basin and the Jaisalmer Formation (Fort Member) of the Jaisalmer Basin on India's western margin, which is important to understand and predict reservoir properties in other carbonate fields with similar properties.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103842"},"PeriodicalIF":3.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonally adjusted periodic time series for Mann-Kendall trend test","authors":"Yavuz Selim Güçlü ,&nbsp;Ramazan Acar ,&nbsp;Kemal Saplıoğlu","doi":"10.1016/j.pce.2024.103848","DOIUrl":"10.1016/j.pce.2024.103848","url":null,"abstract":"<div><div>In this study, temperature data trend analysis is conducted, which is thought to be influenced by global warming, climate change, and local factor impacts. The main objective of this paper is to obtain an acceptable autoregressive correlation value for the MK test. For this purpose, seasonality (periodicity) especially in monthly time series is adjusted. Autoregressive correlation and homogeneity test values decrease after seasonal adjusting, but reasonable results are not achieved. Then, prewhitening procedure is also applied to the seasonally adjusted data. This process resulted in the data becoming both homogeneous and free autoregressive correlation. The final version of the time series is suitable for the MK test. Furthermore, the time series are divided into different time intervals, and the efficacy of the method is investigated. The results demonstrated that the method is suitable for time series with less than 30 years of data. The study demonstrated that the proposed method enhances the reliability of the data. Also, multiplication by 12 (months) allows the MK test with Z score in place of the Student's <em>t</em>-test in short-term data sets. This suggested methodology can be used to identify MK trend conditions in monthly time series. The application is based on monthly and annual average temperature data between 1957 and 2022 from three stations within the Kızılırmak basin (Çankırı, Kırşehir, Sivas stations) and one station within Seyhan Basin (Adana station) in Türkiye. The test results exhibited a significant increasing trend.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103848"},"PeriodicalIF":3.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of sulfate species on limestone powder concrete under low temperature pulse current","authors":"Chenjie Wu ,&nbsp;Lingchen Meng ,&nbsp;Dezhi Wang ,&nbsp;Haiwei Zhang ,&nbsp;Long Ke ,&nbsp;Zhipeng Ma","doi":"10.1016/j.pce.2024.103850","DOIUrl":"10.1016/j.pce.2024.103850","url":null,"abstract":"<div><div>The leakage phenomenon of subway trains in urban subway systems can accelerate the erosion and damage of concrete structures, which has adverse effects on the safety and service life of the project. This study aims to evaluate the erosion effect of sulfate solution on concrete by simulating the low temperature pulse current conditions on subway tracks. The erosion mechanism of sulfate solution on limestone powder concrete under low temperature pulse current was revealed through macroscopic methods such as surface morphology observation, compressive strength testing, and sulfate ion content analysis. Further analysis of the degradation mechanism was conducted using SEM, porosity measurement, and microhardness testing. The results showed that pulse current promoted the migration and enrichment of SO₄²⁻ towards the cathode in limestone powder concrete, forming a large amount of hydration products such as Mg(OH)₂, gypsum, and ettringite, which blocked the pores. Although the impact of sulfate type on quality loss is limited, the compressive strength of all test blocks usually decreases, with a compressive strength loss rate of 22.8% for the C1 group of cubic test blocks. During the erosion process, the content of SO₄²⁻ decreases with increasing depth, and there is almost no SO₄²⁻ in the center of the test block. The porosity decreases with erosion depth, and the anode region is higher than the cathode. The damage caused by sulfate erosion does not differ significantly between different solutions, but the hardness of the anode is slightly higher than that of the cathode.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103850"},"PeriodicalIF":3.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the influence of biophysical factors in explaining spatial heterogeneity of LST: Insights from Brahmani-Dwarka interfluve leveraging Geodetector, GWR, and MGWR models","authors":"Bhaskar Mandal,&nbsp;Kaushalendra Prakash Goswami","doi":"10.1016/j.pce.2024.103836","DOIUrl":"10.1016/j.pce.2024.103836","url":null,"abstract":"<div><div>The present study aims to investigate variations in land use and land cover (LULC) while examining how land surface temperature (LST) and biophysical parameters in the Brahmani-Dwarka Interfluve zone change over time. It also tries to discover LST clusters and outliers and investigate how biophysical variables influence the spatially stratified heterogeneity of LST. This study introduces an innovative perspective by concentrating on the Brahmani-Dwarka Interfluve, an area characterized by stone crushing and mining operations. It employs Geodetector, Geographically Weighted Regression (GWR), and Multiscale Geographically Weighted Regression (MGWR) to thoroughly evaluate the LST heterogeneity, thereby enhancing its uniqueness. Our analysis revealed LST saw a substantial rise of 7.05 °C, equivalent to an average yearly increase of around 0.235 °C between 1991-2021. The regions primarily occupied by stone crushing and mining activities showed elevated LST values compared to other LULC categories in the years 2001, 2011, and 2021. The factor detector findings suggested that the Normalized Difference Latent Heat Index (NDLI) had the most influence in 2001 (q-value 0.39) and 2021 (q-value 0.50), whereas the Normalized Difference Moisture Index (NDMI) had the highest influence in 1991 (q-value 0.39) and 2011 (q-value 0.29). Soil-adjusted Vegetation Index (SAVI) had the most negligible influence (q-value between 0.09-0.15). The Interaction detector findings identified NDLI with NDMI (q-value 0.42) and Modified Normalized Difference Water Index (MNDWI) (q-value 0.42) in 1991, NDLI with Normalized Difference Bareness Index (NDBaI) (q-value 0.41) and MNDWI (q-value 0.41) in 2001, and NDLI with Normalized Difference Vegetation Index (NDVI) (q-value 0.56) and SAVI (q-value 0.56) in 2021 as the most influential interacting variable. In 2011, significant interactions were identified between MNDWI and NDVI (q-value 0.31), NDMI, and SAVI (q-value 0.31), among others. A comparative assessment between regression models using AICc, R², and adjusted R² revealed that all MGWR models performed (R² between 0.92-0.94 &amp; adj. R² between 0.89-0.92) much better than GWR and Ordinary Least Square (OLS) models during the research period. The results will undoubtedly assist policymakers, environmentalists, and stakeholders by providing valuable insights for enhancing environmental management and policies.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103836"},"PeriodicalIF":3.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An assessment of the drainage system and waterlogging at the Silalabuhwa irrigation scheme","authors":"Onias Chikwanda,&nbsp;Bright Chisadza,&nbsp;Canisius Mpala","doi":"10.1016/j.pce.2024.103837","DOIUrl":"10.1016/j.pce.2024.103837","url":null,"abstract":"<div><div>This study investigates the threats posed by waterlogging and salinization to agricultural productivity at the Silalabuhwa Irrigation Scheme in Zimbabwe. To assess these threats, soil samples (n = 20) were collected from both waterlogged and non-waterlogged areas within irrigation blocks and analyzed for texture, pH, and electrical conductivity (EC). Water samples from the dam and canal were similarly analyzed for pH, turbidity, and EC. Additionally, key informant interviews provided valuable insights into the extent and causes of waterlogging, along with potential solutions. Slope analysis and mapping of waterlogged areas were conducted using topographical tools and GPS technology. The findings reveal a significant challenge, with 87.96 ha of land affected by waterlogging, which consequently reduces the available area for irrigated agriculture. Areas with non-functional drainage systems exhibited the most severe waterlogging, highlighting deteriorating infrastructure and poor water management practices as the primary culprits. To address these issues and ensure the scheme's long-term sustainability, the study proposes a multi-pronged approach including rehabilitation of irrigation infrastructure, leaching of excess salts from the soil, staff training on improved irrigation practices, and the implementation of a water-efficient irrigation system equipped with sensors to precisely control water application. By implementing these recommendations, this study aims to contribute to improved land use efficiency, enhanced crop yields at Silalabuhwa Irrigation Scheme, and ultimately, regional food security.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103837"},"PeriodicalIF":3.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cross-modal fusion approach with multispectral, LiDAR, and SAR data for forest canopy height mapping in mountainous region","authors":"Petar Donev ,&nbsp;Hong Wang ,&nbsp;Shuhong Qin ,&nbsp;Xiuneng Li ,&nbsp;Meng Zhang ,&nbsp;Sisi Liu ,&nbsp;Xin Wang","doi":"10.1016/j.pce.2024.103819","DOIUrl":"10.1016/j.pce.2024.103819","url":null,"abstract":"<div><div>The study introduces a technique for integrating multispectral, LiDAR, and Synthetic Aperture Radar (SAR) data within a machine-learning (ML) framework. By leveraging ML models, including Random Forest (RF), Gaussian Process Regression (GPR), and k-Nearest Neighbors (k-NN), successfully provides a comprehensive methodology for mapping forest canopy height (CH) and analyzes seasonal changes from 2019 to 2023 in the mountainous region of Vodno Mountain, North Macedonia. The RF model achieved the highest accuracy (R² = 0.91, RMSE = 1.2 m), outperforming the other models when trained with Aerial LiDAR data. The forest CH models were validated against field measurements, Aerial LiDAR, and Global Ecosystem Dynamics Investigation (GEDI) data, confirming the accuracy of the approach and showing solid correlations between predicted and observed CH values. This research is significant due to its innovative approach to forest CH modeling in a region with minimal prior studies. Integrating multi-source data enables more accurate and detailed CH mapping, essential for monitoring forest biomass and carbon stocks, detecting forest disturbances, and assessing future forest management activities.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103819"},"PeriodicalIF":3.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiological hazards associated with natural radioactivity in topsoil and subsoil from Osogbo, Nigeria","authors":"Hyam Khalaf ,&nbsp;M.A. Olaoye ,&nbsp;Mostafa.Y.A. Mostafa ,&nbsp;R.B. Adegbola ,&nbsp;E.D. Muniru ,&nbsp;Howaida Mansour","doi":"10.1016/j.pce.2024.103821","DOIUrl":"10.1016/j.pce.2024.103821","url":null,"abstract":"<div><div>The present research used gamma-ray spectrometry to assess the amount of activity concentration for radionuclides (²²⁶Ra, ²³²Th and ⁴⁰K). That naturally exist in samples of topsoil and subsoil in Osogbo, Osun State, Nigeria, using a sodium-iodide detector and associated radiological risk factors were estimated. The activity levels of ²²⁶Ra, ²³²Th and ⁴⁰K are, respectively, ranges from 167.03 ± 4.37 to 1187.51 ± 178.68 Bqkg⁻¹, 18.21 ± 23.97 to 134.79 ± 60.00 Bqkg⁻¹ and 8.67 ± 4.80 to 188.65 ± 7.33 Bqkg⁻¹ for subsoil, and ranges from 263.64 ± 5.39 to 3303.33 ± 14.47 Bqkg⁻¹, 23.90 ± 32.28 to 191.05 ± 72.93 Bqkg⁻¹ and 9.90 ± 5.90 to 129.17 ± 8.94 Bqkg⁻¹for topsoil. According to the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), the global average activity levels for these radionuclides are ²²⁶Ra (35 Bq/kg), ²³²Th (30 Bq/kg), and ⁴⁰K (400 Bq/kg). In the study area, the average activity levels of these radionuclides were found to be higher in subsoil compared to topsoil. The estimated average of radiological risk factors (radium activity, the absorbed dose rate, annual gonadal dose equivalent, excess lifetime cancer risk, and representative level index) are recorded, 166.52 Bq/kg, 78.62 nGy/h, 545.23 μSv/y, 0.38 and 1.21 For subsoil respectively, but for topsoil are recorded 184.39 Bq/kg, 90.39 nGy/h, 637.92 μSv/y, 0.44 and 1.40 respectively. All radiological risk factors are much greater than those reported by UNSCEAR (2000) magnitudes of 370 Bq/kg, 59 nGy/h, 300 μSv/y, 2.9 × 10-4, and 1, respectively. The results obtained reveal a high radioactivity level in the investigated area. Therefore, it is advised that the study region have regular radiation monitoring and ecological evaluations.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103821"},"PeriodicalIF":3.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of groundwater potential zones for hard rock area of sabi river basin using an integrated approach of remote sensing, GIS and AHP techniques","authors":"Sachin L. Suryawanshi ,&nbsp;Pradeep Kumar Singh ,&nbsp;Mahesh Kothari ,&nbsp;Manjeet Singh ,&nbsp;Kamal Kishore Yadav ,&nbsp;Trilok Gupta","doi":"10.1016/j.pce.2024.103820","DOIUrl":"10.1016/j.pce.2024.103820","url":null,"abstract":"<div><div>The study was conducted to assess groundwater potential zones (GWPZs) for hard rock area of Sabi river basin for the sustainable development. Remote Sensing (RS) and Geographic Information System (GIS) have emerged as crucial methods in retrieval, monitoring and conserving groundwater resources were used along with Analytical Hierarchy Process (AHP) to demarcate the GWPZs. In order to assess GWP in the study area, eight thematic maps: drainage density, geomorphology, geology, rainfall, land use/land cover, lineament density, slope and soil were prepared using RS and conventional data. The AHP was applied to assign the weightages for each thematic map and its sub classes. Then, the thematic layers were overlaid using the weighted overlay analysis means of ArcGIS 10.4 to assess the GWPZ map of Sabi basin. The Sabi basin was categorized into five classes of GWPZ as very good (0.01%), good (24.72%), moderate (56.54%), poor (10.45%) and very poor (8.28%). The accuracy of produced GWPZ map was assessed with well yield data by agreement scheme using ground water prospects map and by using ROC curve analysis through R-studio software which indicates the satisfactory GWPZ map prediction accuracy. This study provides valuable database in planning and development of groundwater recharging and to delineate locations of potential artificial recharge sites in the hard rock regions and semi -arid areas so that appropriate structures could be planned and constructed to manage aquifer recharge for sustainable groundwater management in the future.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103820"},"PeriodicalIF":3.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic coupling coordination of territorial spatial development intensity and comprehensive disaster-carrying capability: A case study of Beijing-Tianjin-Hebei urban agglomerations, China","authors":"Wei Wang ,&nbsp;Qianqian Guo,&nbsp;Pei Yang,&nbsp;Chenhong Xia","doi":"10.1016/j.pce.2024.103818","DOIUrl":"10.1016/j.pce.2024.103818","url":null,"abstract":"<div><div>The effectiveness of the modernization of the governance system is significantly impacted by the interaction between the territorial spatial development intensity (TSDI) and the comprehensive disaster-carrying capacity (CDCC). It is of great significance to investigate the intrinsic interaction between the TSDI and the CDCC. Identifying the disaster risks induced by the intensity of the territorial spatial development and their constraints promotes synergistic development to cope with the uncertainty. The study explored the degree of coupling, the level of coordinated development, and the dynamic development trend between TSDI and CDCC from the perspective of coupling coordination. Beijing-Tianjin-Hebei (BTH) Region was used as a case study and it was found 1) there is a higher degree of coupling, and high correlation between TSDI and CDCC in the BTH urban agglomeration region; 2) the BTH region has the highest number of cities with coordination levels on the verge of maladjustment, followed by ones with barely coordinated cities; 3) while the overall level of coordination gradually increases, the overall deviation degree of development of TSDI and CDCC in the BTH urban agglomeration region is gradually decreasing; 4) there is an interactive coercion relationship between TSDI and CDCC in the BTH urban agglomeration region. This study may help provide a decision-making basis for the BTH urban agglomeration on improving the pertinence of urban disaster prevention and mitigation construction, adjusting the spatial structure of the national territory, and promoting the coordinated development of different cities. Moreover, technical support and theoretical guidance for similar regions was also developed to assess the land suitability, establish an integrated defense system of the national territory and space, and exercise resilient city planning.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103818"},"PeriodicalIF":3.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}