International journal of applied earth observation and geoinformation : ITC journal最新文献

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Integrated assessment of land use and carbon storage changes in the Tulufan-Hami Basin under the background of urbanization and climate change 城市化和气候变化背景下吐鲁番-哈密盆地土地利用和碳储存变化的综合评估
IF 7.6
Meiling Huang , Yusuyunjiang Mamitimin , Abudukeyimu Abulizi , Rebiya Yimaer , Bahejiayinaer Tiemuerbieke , Han Chen , Tongtong Tao , Yunfei Ma
{"title":"Integrated assessment of land use and carbon storage changes in the Tulufan-Hami Basin under the background of urbanization and climate change","authors":"Meiling Huang ,&nbsp;Yusuyunjiang Mamitimin ,&nbsp;Abudukeyimu Abulizi ,&nbsp;Rebiya Yimaer ,&nbsp;Bahejiayinaer Tiemuerbieke ,&nbsp;Han Chen ,&nbsp;Tongtong Tao ,&nbsp;Yunfei Ma","doi":"10.1016/j.jag.2024.104261","DOIUrl":"10.1016/j.jag.2024.104261","url":null,"abstract":"<div><div>Precise forecasting of land use modifications and carbon storage (CS) alterations is essential for effective regulatory measures and ecological quality enhancement. However, there are limited studies on land use dynamics and its impact on CS in the arid regions of Northwest China. Therefore, this study explores land use and CS changes in the Tulufan-Hami Basin from 2000 to 2050. The SD-FLUS and InVEST models were employed to simulate land use patterns and assess CS under three scenarios (SSP126-EP, SSP245-ND and SSP585-ED). The results of our study indicate that the area of cropland and built-up land both increased dramatically from 2000 to 2020, expanding by 347 km<sup>2</sup> and 505 km<sup>2</sup> respectively. CS initially rose by 0.74 × 10<sup>6</sup>t from 2000 to 2010 but then declined by 1.37 × 10<sup>6</sup>t from 2010 to 2020. Construction expansion and grassland degradation drove the decline. By 2050, the SSP126-EP scenario predicts an increase in CS of 3.64 × 10<sup>6</sup>t compared to 2020. However, both the SSP245-ND and SSP585-ED scenarios show significant decreases, with a decline of 0.55 × 10<sup>6</sup>t and 1.87 × 10<sup>6</sup>t respectively. These findings provide a foundation for global ecological preservation and CS enhancement in arid regions.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104261"},"PeriodicalIF":7.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cloud probability distribution of typical urban agglomerations in China based on Sentinel-2 satellite remote sensing 基于 "哨兵-2 "卫星遥感的中国典型城市群云概率分布
IF 7.6
Jing Ling , Rui Liu , Shan Wei , Shaomei Chen , Luyan Ji , Yongchao Zhao , Hongsheng Zhang
{"title":"Cloud probability distribution of typical urban agglomerations in China based on Sentinel-2 satellite remote sensing","authors":"Jing Ling ,&nbsp;Rui Liu ,&nbsp;Shan Wei ,&nbsp;Shaomei Chen ,&nbsp;Luyan Ji ,&nbsp;Yongchao Zhao ,&nbsp;Hongsheng Zhang","doi":"10.1016/j.jag.2024.104254","DOIUrl":"10.1016/j.jag.2024.104254","url":null,"abstract":"<div><div>Cloud distribution significantly impacts global climate change, ecosystem health, urban environments, and satellite remote sensing observations. However, past research has primarily focused on the meteorological characteristics of clouds with limitations in scale and resolution, leading to an insufficient understanding of large-scale cloud distribution and its relationship with land surface cover and urbanization. This study investigates the cloud distribution characteristics of typical urban agglomerations in different climatic regions of China using high-resolution Sentinel-2 satellite imagery and the Google Earth Engine platform. A cloud probability descriptor was constructed based on three years of high spatiotemporal resolution observations. The results revealed significant differences in cloud distribution among urban agglomerations, challenging the traditional understanding based on climate zoning. The Northeast urban agglomeration in the temperate zone exhibited high cloud coverage (37.54%), while the Chengdu-Chongqing urban agglomeration in the subtropical zone and the Qinghai-Tibet Plateau urban agglomeration in the plateau climate zone had even higher average cloud probabilities (50.72% and 43.27%, respectively). The analysis suggests land surface cover, urbanization, and other surface factors may influence cloud distribution patterns. These findings emphasize the ubiquity of cloud cover and highlight the importance of considering the complex interactions among geographical factors when characterizing cloud cover diversity. This study contributes to providing new insights for enhancing meteorological models and remote sensing observation strategies in cloudy environments across different climate zones.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104254"},"PeriodicalIF":7.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coupling between evapotranspiration, water use efficiency, and evaporative stress index strengthens after wildfires in New Mexico, USA 美国新墨西哥州野火发生后,蒸散量、水分利用效率和蒸发压力指数之间的耦合作用增强
IF 7.6
Ryan C. Joshi , Annalise Jensen , Madeleine Pascolini-Campbell , Joshua B. Fisher
{"title":"Coupling between evapotranspiration, water use efficiency, and evaporative stress index strengthens after wildfires in New Mexico, USA","authors":"Ryan C. Joshi ,&nbsp;Annalise Jensen ,&nbsp;Madeleine Pascolini-Campbell ,&nbsp;Joshua B. Fisher","doi":"10.1016/j.jag.2024.104238","DOIUrl":"10.1016/j.jag.2024.104238","url":null,"abstract":"<div><h3>Aim</h3><div>Examine the effects of evapotranspiration (ET), water use efficiency (WUE), and evaporative stress index (ESI) on wildfire temperature and extent. Compare land cover type proportions in burned area with land cover type proportions in New Mexico.</div></div><div><h3>Methods</h3><div>We used remotely sensed data from NASA’s ECOsystem and Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) to collect ET, WUE, &amp; ESI data. Data were analyzed for burned areas of 10 wildfires that occurred in New Mexico between 2020 and 2022, segmenting the following land cover types: evergreen needleleaf forests, closed shrublands, open shrublands, savannas, woody savannas, grasslands, and other.</div></div><div><h3>Results</h3><div>ET &amp; ESI increased throughout the duration of the wildfires, while WUE decreased. ET vs. WUE were more strongly correlated post-fire (R<sup>2</sup> = 0.85) than pre-fire (R<sup>2</sup> = 0.20), as was WUE vs. ESI (post-fire, R<sup>2</sup> = 0.59; pre-fire, R<sup>2</sup> = 0.04). Pre- and post-fire ET and ESI were positively correlated (R<sup>2</sup> = 0.61 pre-fire, R<sup>2</sup> = 0.53 post-fire), while post-fire WUE was negatively correlated with both post-fire ET (R<sup>2</sup> = 0.85) and ESI (R<sup>2</sup> = 0.59). We found that the land cover composition of the areas burned by the 10 studied wildfires differs from the land cover composition of New Mexico as a whole (p &lt; 0.05).</div></div><div><h3>Conclusions</h3><div>Our findings present increasing trends in ET and ESI, and decreasing trends in WUE before, during, and after a wildfire. By monitoring changes in those three variables, we can identify areas that are at high risk for wildfires. Savannas and woody savannas should be closely monitored because a disproportionately large proportion of acres burned in 2022 were savannas and woody savannas.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104238"},"PeriodicalIF":7.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing rural waste management: Leveraging high-resolution remote sensing and GIS for efficient collection and routing 优化农村垃圾管理:利用高分辨率遥感和地理信息系统实现高效收集和路线规划
IF 7.6
Xi Cheng , Jieyu Yang , Zhiyong Han , Guozhong Shi , Deng Pan , Likang Meng , Zhuojun Zeng , Zhanfeng Shen
{"title":"Optimizing rural waste management: Leveraging high-resolution remote sensing and GIS for efficient collection and routing","authors":"Xi Cheng ,&nbsp;Jieyu Yang ,&nbsp;Zhiyong Han ,&nbsp;Guozhong Shi ,&nbsp;Deng Pan ,&nbsp;Likang Meng ,&nbsp;Zhuojun Zeng ,&nbsp;Zhanfeng Shen","doi":"10.1016/j.jag.2024.104219","DOIUrl":"10.1016/j.jag.2024.104219","url":null,"abstract":"<div><div>Accurate assessment of distribution patterns and dynamic insights into rural populations is pivotal for comprehending domestic waste generation, recycling, and transportation in rural territories. Given that the dispersion of rural inhabitants exhibits minimal variation and maintains stability, this research endeavors to establish a pragmatic model for rural domestic waste collection and routing, leveraging the capabilities of very high-resolution remote sensing combined with geographic information system (GIS) techniques. Specifically, the Dilated LinkNet model was employed to discern features such as buildings, roads, water bodies, farmlands, and forests from the high-resolution remote sensing imagery. A novel multiple K-means clustering approach was devised for building segmentation. Within these clusters, an assortment of spatial regulations and evaluations facilitated the judicious selection of environmentally-conscious waste collection sites (WCSs). The Pointer Network, augmented with reinforcement learning, executed a traveling salesman analysis on these chosen WCSs, yielding the optimal collection trajectory. Validated in Huangtu Town, a quintessential rural region in China, our model manifested superior recognition precision, recording IoU accuracies of 0.902, 0.926, 0.933, 0.891, and 0.849 for buildings, roads, water bodies, farmlands, and forests respectively. Notably, when compared to our field survey data, the optimized daily collection route in a rural context decreased from 256.40 km before optimization to 140.44 km, reflecting a substantial reduction of 45.23% in total distance. This study furnishes an effective model that relies solely on information from remote-sensing images for efficient rural waste collection and extends invaluable insights to planners and administrators in the realm of rural and township waste management.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104219"},"PeriodicalIF":7.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bayesian modeling of incompatible spatial data: A case study involving Post-Adrian storm forest damage assessment 不兼容空间数据的贝叶斯建模:涉及后阿德里安风暴森林损害评估的案例研究
IF 7.6
Lu Zhang , Andrew O. Finley , Arne Nothdurft , Sudipto Banerjee
{"title":"Bayesian modeling of incompatible spatial data: A case study involving Post-Adrian storm forest damage assessment","authors":"Lu Zhang ,&nbsp;Andrew O. Finley ,&nbsp;Arne Nothdurft ,&nbsp;Sudipto Banerjee","doi":"10.1016/j.jag.2024.104224","DOIUrl":"10.1016/j.jag.2024.104224","url":null,"abstract":"<div><div>Modeling incompatible spatial data, i.e., data with different spatial resolutions, is a pervasive challenge in remote sensing data analysis. Typical approaches to addressing this challenge aggregate information to a common coarse resolution, i.e., compatible resolutions, prior to modeling. Such pre-processing aggregation simplifies analysis, but potentially causes information loss and hence compromised inference and predictive performance. To avoid losing potential information provided by finer spatial resolution data and improve predictive performance, we propose a new Bayesian method that constructs a latent spatial process model at the finest spatial resolution. This model is tailored to settings where the outcome variable is measured on a coarser spatial resolution than predictor variables—a configuration seen increasingly when high spatial resolution remotely sensed predictors are used in analysis. A key contribution of this work is an efficient algorithm that enables full Bayesian inference using finer resolution data while optimizing computational and storage costs. The proposed method is applied to a forest damage assessment for the 2018 Adrian storm in Carinthia, Austria, that uses high-resolution laser imaging detection and ranging (LiDAR) measurements and relatively coarse resolution forest inventory measurements. Extensive simulation studies demonstrate the proposed approach substantially improves inference for small prediction units.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104224"},"PeriodicalIF":7.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative assessment of spatiotemporal variations and drivers of gross primary productivity in tropical ecosystems at higher resolution 以更高分辨率定量评估热带生态系统总初级生产力的时空变化和驱动因素
IF 7.6
Ruize Xu , Jiahua Zhang , Fang Chen , Bo Yu , Shawkat Ali , Hidayat Ullah , Ali Salem Al-Sakkaf
{"title":"Quantitative assessment of spatiotemporal variations and drivers of gross primary productivity in tropical ecosystems at higher resolution","authors":"Ruize Xu ,&nbsp;Jiahua Zhang ,&nbsp;Fang Chen ,&nbsp;Bo Yu ,&nbsp;Shawkat Ali ,&nbsp;Hidayat Ullah ,&nbsp;Ali Salem Al-Sakkaf","doi":"10.1016/j.jag.2024.104248","DOIUrl":"10.1016/j.jag.2024.104248","url":null,"abstract":"<div><div>Climate change significantly impacts vegetation gross primary productivity (GPP), yet uncertainties persist in the carbon cycle of tropical terrestrial ecosystems due to incomplete consideration of productivity drivers and lag effects. To address this, we developed a remote sensing-based process model by integrating high-resolution vegetation indices and multi-layer soil hydrological module, to simulate monthly GPP at a 30 m resolution across Hainan Island from 2000 to 2020. The finer GPP can capture more spatial details and show higher accuracy at site scales (R = 0.79 and NRMSE = 14.79 %). Trend analysis and Hurst exponent were used to reveal spatiotemporal dynamics and sustainability of GPP. Meanwhile, nonlinear Granger causality tests quantified both concurrent and lagged correlations between various environmental factors and GPP. The results indicated significant GPP increases across 98.5 % of vegetated areas, with an annual rise of 437.02 g C/m<sup>2</sup>, and a marked improvement in trends around 2011. Future projections suggest sustained high GPP sustainability (Hurst = 0.53), and reducing “positive-inconsistent” areas in the northeast and southwest is crucial for enhancing local carbon sinks. Furthermore, water availability, temperature, and radiation were primary drivers of GPP changes, affecting 53.55 %, 27.77 %, and 14.43 % of vegetated areas, respectively, with their compounded effects enhancing explanatory power by 35.84 %. Relative humidity dominated water availability impacts on GPP (10.02 % to 79.98 % variation), surpassing precipitation and soil moisture impacts. Lag effects were observed in 68.83 % of vegetated areas, with 1 to 4-month delays in responses to net solar radiation and surface temperature, especially in forest and shrubland ecosystems. This study provides deeper insights into fine-scale GPP simulations and analysis of climate interactions, which are crucial for effective carbon cycle management in tropical ecosystems.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"135 ","pages":"Article 104248"},"PeriodicalIF":7.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mitigating terrain shadows in very high-resolution satellite imagery for accurate evergreen conifer detection using bi-temporal image fusion 利用双时相融合技术减少超高分辨率卫星图像中的地形阴影,准确探测常绿针叶林
IF 7.6
Xiao Zhu , Tiejun Wang , Andrew K. Skidmore , Stephen J. Lee , Isla Duporge
{"title":"Mitigating terrain shadows in very high-resolution satellite imagery for accurate evergreen conifer detection using bi-temporal image fusion","authors":"Xiao Zhu ,&nbsp;Tiejun Wang ,&nbsp;Andrew K. Skidmore ,&nbsp;Stephen J. Lee ,&nbsp;Isla Duporge","doi":"10.1016/j.jag.2024.104244","DOIUrl":"10.1016/j.jag.2024.104244","url":null,"abstract":"<div><div>Very high-resolution (VHR) optical satellite imagery offers significant potential for detailed land cover mapping. However, terrain shadows, which appear dark and lack texture and detail, are especially acute at low solar elevations. These shadows hinder the creation of spatially complete and accurate land cover maps, particularly in rugged mountainous environments. While many methods have been proposed to mitigate terrain shadows in remote sensing, they either perform insufficient shadow reduction or rely on high-resolution digital elevation models which are often unavailable for VHR image shadow mitigation. In this paper, we propose a bi-temporal image fusion approach to mitigate terrain shadows in VHR satellite imagery. Our approach fuses a WorldView-2 multispectral image, which contains significant terrain shadows, with a corresponding geometrically registered WorldView-1 panchromatic image, which has minimal shadows. This fusion is applied to improve the mapping of evergreen conifers in temperate mixed mountain forests. To evaluate the effectiveness of our approach, we first improve an existing shadow detection method by Silva et al. (2018) to more accurately detect shadows in mountainous, forested landscapes. Next, we propose a quantitative algorithm that differentiates dark and light terrain shadows in VHR satellite imagery based on object visibility in shadowed areas. Finally, we apply a state-of-the-art 3D U-Net deep learning method to detect evergreen conifers. Our study shows that the proposed approach significantly reduces terrain shadows and enhances the detection of evergreen conifers in shaded areas. This is the first time a bi-temporal image fusion approach has been used to mitigate terrain shadow effects for land cover mapping at a very high spatial resolution. This approach can also be applied to other VHR satellite sensors. However, careful image co-registration will be necessary when applying this technique to multi-sensor systems beyond the WorldView constellation, such as Pléiades or SkySat.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"134 ","pages":"Article 104244"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing UAV-based uncooled thermal cameras in field conditions for precision agriculture 优化田间条件下基于无人机的非制冷红外热像仪,促进精准农业发展
IF 7.6
Quanxing Wan , Magdalena Smigaj , Benjamin Brede , Lammert Kooistra
{"title":"Optimizing UAV-based uncooled thermal cameras in field conditions for precision agriculture","authors":"Quanxing Wan ,&nbsp;Magdalena Smigaj ,&nbsp;Benjamin Brede ,&nbsp;Lammert Kooistra","doi":"10.1016/j.jag.2024.104184","DOIUrl":"10.1016/j.jag.2024.104184","url":null,"abstract":"<div><div>Unoccupied aerial vehicles (UAVs) equipped with thermal cameras show great promise for precision agriculture, but challenges persist in analyzing land surface temperature (LST). This study explores the influence of ambient environmental conditions and intrinsic characteristics of uncooled thermal cameras on the accuracy of temperature measurements obtained through UAV-based thermal cameras. The research utilized DJI Matrice 210 quad-rotor UAVs equipped with FLIR Tau 2 and WIRIS 2<sup>nd</sup> Gen thermal cameras. The experimental design involved strategically selected temperature reference materials of diverse compositions. UAV flights were conducted at varying altitudes, capturing thermal images correlated with ground-based thermocouple measurements. Results indicate that increasing flight altitude resulted in underestimated temperatures measured by UAVs for objects with higher kinematic temperatures, while objects with lower temperatures displayed higher measurements. The study integrates multiple environmental metrics, illustrating the complex influence of air temperature, humidity, net radiation, and wind speed on temperature measurements, with variations observed between FLIR Tau 2 and WIRIS 2<sup>nd</sup> Gen camera models. Linear regression models highlight the diverse impact of these metrics on UAV-based temperature observations. Furthermore, an analysis of uncooled thermal sensor characteristics reveals a correlation between UAV-measured temperatures and the focal plane array (FPA) temperature, emphasizing the importance of considering intrinsic sensor dynamics. These findings provide valuable insights for enhancing the reliability of UAV-based thermal measurements in agricultural and environmental monitoring. The research underscores the necessity for a comprehensive understanding of both ambient conditions and camera-model-specific dynamics to optimize thermal imaging accuracy for precision agriculture applications. Accordingly, the recommended procedures have been described to reduce the effect of identified sources of influence.</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"134 ","pages":"Article 104184"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integration of ecological knowledge with Google Earth Engine for diverse wetland sampling in global mapping 将生态知识与谷歌地球引擎相结合,在全球制图中进行多样化湿地取样
IF 7.6
Xuanlin Huo, Zhenguo Niu, Linsong Liu, Yuhang Jing
{"title":"Integration of ecological knowledge with Google Earth Engine for diverse wetland sampling in global mapping","authors":"Xuanlin Huo,&nbsp;Zhenguo Niu,&nbsp;Linsong Liu,&nbsp;Yuhang Jing","doi":"10.1016/j.jag.2024.104249","DOIUrl":"10.1016/j.jag.2024.104249","url":null,"abstract":"<div><div>Accurate wetland extraction using remote sensing technology poses significant challenges due to the complex hydrological dynamics, diverse landscapes, and varied wetland types. Constructing a reliable sample set is a critical first step in overcoming these challenges for large-scale wetland mapping. To meet the demand for global wetland mapping, this study (1) proposes a multi-level wetland classification system suitable for remote sensing, incorporating the soil moisture, vegetation cover and temporal dynamic characteristics of wetlands; (2) introduces a theoretically plausible wetland sample identification method based on the ecological, geographical and temporal dynamic characteristics of wetland ecosystems; (3) develops an approach that combines the Inundation-Frequency and Ecological Remote Sensing Indicators for global wetland sampling based on global climatic zones. The global wetland sample set was finally produced with 64,486 samples. The dataset revealed that seasonal marsh, swamp, mangrove, floodplain, salt marsh, tidal flat and permanent marsh accounted for 22.99%, 20.05%, 18.06%, 14.58%, 12.38%, 10.62% and 1.29% of the total sample set, respectively. Furthermore, the water body sample set comprised 13,402 samples, distributed among permanent (45.50%), seasonal (31.35%) and temporary (23.15%) water bodies. The proposed knowledge-based method, which makes use of big earth-observing data and the Google Earth Engine platform, has been demonstrated to have the capability to generate reliable wetland samples with a high degree of accuracy. This represents the first effort to create a global wetland sample set, which has the potential to offer critical support for comprehensive wetland mapping initiatives</div></div>","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"134 ","pages":"Article 104249"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “How textural features can improve SAR-based tropical forest disturbance mapping” [Int. J. Appl. Earth Obs. Geoinform. 124 (2023) 103492] 更正:"纹理特征如何改善基于合成孔径雷达的热带森林干扰绘图" [Int. J. Appl. Earth Obs. Geoinform. 124 (2023) 103492]
IF 7.6
Johannes Balling , Martin Herold , Johannes Reiche
{"title":"Corrigendum to “How textural features can improve SAR-based tropical forest disturbance mapping” [Int. J. Appl. Earth Obs. Geoinform. 124 (2023) 103492]","authors":"Johannes Balling ,&nbsp;Martin Herold ,&nbsp;Johannes Reiche","doi":"10.1016/j.jag.2024.104165","DOIUrl":"10.1016/j.jag.2024.104165","url":null,"abstract":"","PeriodicalId":73423,"journal":{"name":"International journal of applied earth observation and geoinformation : ITC journal","volume":"134 ","pages":"Article 104165"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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