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4. Imaging tree root systems using ground penetrating radar (GPR) data in Brazil.

Author

Rocha, Amanda Almeida, Borges²,, Welitom Rodrigues, Von Huelsen, Mônica Giannoccaro, de Oliveira e Sousa, Frederico Ricardo Ferreira Rodrigues, Ramalho Maciel, Susanne Tainá, Rocha, Janaína de Almeida, Baiocchi Jacobson, Tamiel Khan, Dogru, Fikret, Leucci, Giovanni, and Kovacikova, Svetlana

Subjects
BIOMASS conversion, GROUND penetrating radar, LIFE sciences, GREENHOUSE gas mitigation, CLIMATE change
Abstract

Trees sequester carbon dioxide from the atmosphere through photosynthesis, storing it in branches, stems, and roots, where the belowground carbon fraction, approximately 1/4 of the total amount, exhibits significant interspecies root biomass variability. Estimating the amount of carbon stored in tree roots of different species is key to understanding an important aspect of climate change and exploring how natural forests, urban tree planting policies, and reforestation projects might help to address it. In this context, one of the most prominent Non-Destructive Testing methods capable of estimating the diameter and length of roots at different depths is ground penetrating radar (GPR). It has been widely used for geological, archaeological, and geotechnical studies due to its accuracy in locating buried material in different contexts, although standards for the correct management of datasets related to belowground root systems are still been developed. This paper reports a GPR signal processing flow to estimate the root diameter of three species of tropical forest trees, and to demonstrate the method's viability, a dataset was collected in a study area with a 900 MHz shielded antenna. A multistage data processing flow is then presented, including raw data, file format conversion, zero-time adjustment, background removal, signal gain, Stolt FK migration, and time-to-depth conversion with hyperbolic adjustment velocity. The resulting data were converted from true amplitude data to a trace envelope. High amplitudes on the envelope section, with lateral continuity in parallel sections, were interpreted as roots. However, the interpretation of outcomes encounters notable complexities, primarily attributable to the intricate nature of subsurface root architectures, the soil matrix characterized by significant clay content, and the co-occurrence of buried materials proximate to the arboreal subjects. Consequently, amplitudes discerned within ground penetrating radar (GPR) 2D sections necessitate cautious interpretation, as they are not immediately indicative of subsurface roots. To overcome this difficulty, this study used direct measurements of the roots in the field, to confirm the GPR data. Despite these complexities, the study demonstrates GPR's efficacy, particularly in the uppermost soil layer-a pivotal carbon reservoir with a 96% correlation (R²) between GPR-derived coarse-root diameter estimates and field measurements. [ABSTRACT FROM AUTHOR]

Published
2024
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7. zcyphygeodesy.com/en/. Ground gravity gradient measurements are difficult to achieve mE-level accuracy due to the inability to separate environmental loading effects

Author

Chuanyin Zhang, Qiankun Liu, Changyi Xu, Zhaohui Chen, Coto, Iv��n Sanabria, Changshou Wei, Xiang, Yang, Abdulrahaman Idris Augie, Liangyu Zhu, Fengwei Wang, ��zbey, Volkan, Peneva, Elena, Lambeva, Tatyana, Arfan Arshad, Pashova, Lyubka, Kumar, Satish, I����k, Mustafa Serkan, Ahao Wang, Elia, Letizia, Yongjin Sun, Shanker KC, Wei, Xu, Zhou, Feng, Gowhar Meraj, Odalovic, Oleg, Deng, Xiao-Le, Behshid Khodaei, Guoyan Jiang, Shuai Wang, Altiparmaki, Ourania, Jiapei Wang, Zhu, Yu, Jinyun, Guo, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Singh, Vijay, Zhongshan, Jiang, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Feng, Wei, Yap Loudi, Yihao Wu, Elshewy, Mohamed, Abdallah, Mohamed, Yifan, Shen, Nanabanyin Okwentsie Kwame Ekumah, Perparim Ndoj, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, K P Manuranga, Jingxue Bi, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Wenjie Yin, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Sotiris Lycourghiotis, Bogusz, Janusz, Mostafa, Mostafa F., Yonghong Zhou, Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, Guobiao Yao, Mousa, Ashraf, Kelly, Caleb I, Zaki, Ahmed, Junqing Ning, Wanqiu Li, Mintourakis, Ioannis, Chen, Wu, Jiang, Tao, Dong, Jie, Wang, Wei, Baogui, Ke, Yulong Zhong, Xinyu Wen, and Ko��, ��yk��

Published
2022
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8. Geophysical geodetic concepts and ideas from own summary in ETideLoad4.0

Author

Chuanyin, Zhang, Jungang Wang, Qiankun Liu, Changyi Xu, Zhaohui Chen, Coto, Iv��n Sanabria, Changshou Wei, Xiang, Yang, Abdulrahaman Idris Augie, Fengwei Wang, ��zbey, Volkan, Peneva, Elena, Lambeva, Tatyana, Arfan Arshad, Pashova, Lyubka, Kumar, Satish, I����k, Mustafa Serkan, Ahao Wang, Elia, Letizia, Yongjin Sun, Shanker KC, Wei, Xu, Zhou, Feng, Gowhar Meraj, Odalovic, Oleg, Deng, Xiao-Le, Behshid Khodaei, Guoyan Jiang, Shuai Wang, Altiparmaki, Ourania, Jiapei Wang, Zhu, Yu, Jinyun, Guo, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Singh, Vijay, Zhongshan, Jiang, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Feng, Wei, Yap Loudi, Yihao Wu, Elshewy, Mohamed, Abdallah, Mohamed, Yifan, Shen, Nanabanyin Okwentsie Kwame Ekumah, Perparim Ndoj, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, K P Manuranga, Jingxue Bi, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Wenjie Yin, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Sotiris Lycourghiotis, Bogusz, Janusz, Mostafa, Mostafa F., Yonghong Zhou, Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, Guobiao Yao, Mousa, Ashraf, Kelly, Caleb I, Zaki, Ahmed, Junqing Ning, Yamin Dang, Wanqiu Li, Mintourakis, Ioannis, Jiang, Tao, Chen, Wu, Dong, Jie, Shuqiang Xue, Wang, Wei, Baogui, Ke, Yulong Zhong, Xinyu Wen, and Ko��, ��yk��

Published
2022
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9. Geodetic Computation software for Earth Tide, Load Effects and Deformation Monitoring

Author

Chuanyin Zhang, Jungang Wang, Qiankun Liu, Changyi Xu, Zhaohui Chen, Coto, Iv��n Sanabria, Changshou Wei, Xiang, Yang, Abdulrahaman Idris Augie, Fengwei Wang, ��zbey, Volkan, Peneva, Elena, Lambeva, Tatyana, Arfan Arshad, Pashova, Lyubka, Kumar, Satish, I����k, Mustafa Serkan, Ahao Wang, Elia, Letizia, Yongjin Sun, Shanker KC, Wei, Xu, Zhou, Feng, Gowhar Meraj, Odalovic, Oleg, Deng, Xiao-Le, Behshid Khodaei, Guoyan Jiang, Shuai Wang, Altiparmaki, Ourania, Jiapei Wang, Zhu, Yu, Jinyun, Guo, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Singh, Vijay, Zhongshan, Jiang, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Feng, Wei, Yap Loudi, Yihao Wu, Elshewy, Mohamed, Abdallah, Mohamed, Yifan, Shen, Nanabanyin Okwentsie Kwame Ekumah, Perparim Ndoj, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, K P Manuranga, Jingxue Bi, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Wenjie Yin, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Sotiris Lycourghiotis, Bogusz, Janusz, Mostafa, Mostafa F., Yonghong Zhou, Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, Guobiao Yao, Mousa, Ashraf, Kelly, Caleb I, Zaki, Ahmed, Junqing Ning, Yamin Dang, Wanqiu Li, Mintourakis, Ioannis, Jiang, Tao, Chen, Wu, Dong, Jie, Shuqiang Xue, Wang, Wei, Baogui, Ke, Yulong Zhong, Xinyu Wen, and Ko��, ��yk��

Published
2022
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10. Global forecast of various tidal effects on various surface geodetic quantities. https://zcyphygeodesy.com/en

Author

Chuanyin Zhang, Qiankun Liu, Changyi Xu, Zhaohui Chen, Coto, Iv��n Sanabria, Changshou Wei, Xiang, Yang, Abdulrahaman Idris Augie, Fengwei Wang, ��zbey, Volkan, Peneva, Elena, Lambeva, Tatyana, Arfan Arshad, Pashova, Lyubka, Kumar, Satish, I����k, Mustafa Serkan, Ahao Wang, Elia, Letizia, Yongjin Sun, Shanker KC, Wei, Xu, Zhou, Feng, Gowhar Meraj, Odalovic, Oleg, Deng, Xiao-Le, Behshid Khodaei, Guoyan Jiang, Shuai Wang, Altiparmaki, Ourania, Jiapei Wang, Zhu, Yu, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Jinyun, Guo, Singh, Vijay, Zhongshan, Jiang, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Feng, Wei, Yap Loudi, Yihao Wu, Elshewy, Mohamed, Abdallah, Mohamed, Yifan, Shen, Nanabanyin Okwentsie Kwame Ekumah, Perparim Ndoj, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, K P Manuranga, Jingxue Bi, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Wenjie Yin, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Sotiris Lycourghiotis, Bogusz, Janusz, Mostafa, Mostafa F., Yonghong Zhou, Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, Guobiao Yao, Mousa, Ashraf, Kelly, Caleb I, Zaki, Ahmed, Junqing Ning, Wanqiu Li, Mintourakis, Ioannis, Chen, Wu, Dong, Jie, Jiang, Tao, Liping Ji, Shuqiang Xue, Wang, Wei, Baogui, Ke, Yulong Zhong, Xinyu Wen, Ko��, ��yk��, and Yamin Dang

Published
2022
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11. Residual ocean tidal loading effects is big in coastal areas

Author

Chuanyin Zhang, Qiankun Liu, Changyi Xu, Changshou Wei, Zhaohui Chen, Coto, Iv��n Sanabria, Xiang, Yang, Abdulrahaman Idris Augie, Fengwei Wang, ��zbey, Volkan, Peneva, Elena, Lambeva, Tatyana, Arfan Arshad, Pashova, Lyubka, Kumar, Satish, I����k, Mustafa Serkan, Ahao Wang, Elia, Letizia, Yongjin Sun, Shanker KC, Wei, Xu, Zhou, Feng, Gowhar Meraj, Odalovic, Oleg, Deng, Xiao-Le, Behshid Khodaei, Guoyan Jiang, Shuai Wang, Altiparmaki, Ourania, Jiapei Wang, Zhu, Yu, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Singh, Vijay, Zhongshan, Jiang, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Yap Loudi, Yihao Wu, Feng, Wei, Elshewy, Mohamed, Abdallah, Mohamed, Yifan, Shen, Nanabanyin Okwentsie Kwame Ekumah, Jinyun, Guo, Perparim Ndoj, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, K P Manuranga, Jingxue Bi, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Wenjie Yin, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Sotiris Lycourghiotis, Bogusz, Janusz, Mostafa, Mostafa F., Yonghong Zhou, Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, Guobiao Yao, Mousa, Ashraf, Kelly, Caleb I, Zaki, Ahmed, Junqing Ning, Wanqiu Li, Mintourakis, Ioannis, Dong, Jie, Chen, Wu, Yulong Zhong, Ko��, ��yk��, and Wang, Wei

Published
2022
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12. Geophysical geodetic computation Examples from ETideLoad4.0

Author

Chuanyin, Zhang, Elia, Letizia, Yongjin Sun, Shanker KC, Gowhar Meraj, Odalovic, Oleg, Behshid Khodaei, Shuai Wang, Altiparmaki, Ourania, Gobron, Kevin, Jinling Yang, Garzon, Gustavo, Ropesh Goyal, Metters, Daryl, Singh, Vijay, Vitushkin, Leonid, Abdalhaleem A. Hassaballa, Azar, Rahim Javadi, Feng, Wei, Zhou, Feng, Deng, Xiao-Le, Yap Loudi, Yihao Wu, Elshewy, Mohamed, Abdallah, Mohamed, Nanabanyin Okwentsie Kwame Ekumah, Perparim Ndoj, Arnessa Gooding, Lin, Miao, Minzhang Hu, Sadiq Yakubu, Fern��ndez, Alonso Vega, Bla��enka Buka��, L. Seoane, Hamidreza Bagheri, Zhongshan, Jiang, Yifan, Shen, K P Manuranga, Ba��i��, Tomislav, Dogru, Fikret, Elhamem Abdalla, Azzab, Driss El, Jagat Dwipendra Ray, Abbak, Ramazan Alpay, Afranewaa, Nana Ama Boadu, Epuh Emeka, Simav, Mehmet, Singh, Suraj Kumar, Erol, Bihter, M.Ra��it ��evikalp, Ashry, Mostafa, Adamu Abubakar, Abdelrahim Ruby, Osman, Anas Sharafeldin Mohamed, Wenjie Yin, Sotiris Lycourghiotis, Ko��, ��yk��, Bogusz, Janusz, Mostafa, Mostafa F., Mosquera, Jose Antonio Tarr��o, Yildiz, Hasan, Li, Jin, O. K. Andersen, Mousa, Ashraf, Graham, Emmanuel, Kelly, Caleb I, Zaki, Ahmed, Wanqiu Li, Mintourakis, Ioannis, Chen, Wu, Dong, Jie, and Jia, Luo

Published
2022
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13. Revealing Tectonic Structure by Utilizing the Boundary Analysis Methods on Aeromagnetic Data of Bitlis Zagros Suture Zone and Its Surroundings, Turkey

Author

DOGRU, Fikret

Subjects
Engineering, Edge detection,pole reduction,upward continuation,tilt angle,Bitlis-Zagros Suture Zone, Mühendislik
Abstract

Boundaryanalysis techniques which are analytic signal, total horizontal derivative(THDR), theta map, tilt angle, hyperbolic of tilt angle (HTA), normalized totalhorizontal gradient (TDX) and normalized horizontal derivative (NTHD), play an importantrole in interpreting potential field data. In this study, an enhanced total horizontalderivative of the tilt angle (ETHDR) method was utilized for comparison of resultswith the other edge detection filters. The sufficiency of the ETHDR method isindicated using theoretical models and field study. Compared with the formalmethods, the ETHDR filter more detailed outcomes for buried models and is lesssensitive to noise. Aeromagnetic anomaly of Bitlis Zagros Suture Zone (BZSZ)and its surroundings was used for field data. The easternpart of Turkey which has major tectonic structures such as East Anatolian Fault(EAF), Malatya Fault (MF) and Bitlis-Zagros Suture Zone (BZSZ), with the effectof Arabian Plate’s northward motion, Anatolian block and Northeastern AnatolianBlock escape to west and east, respectively. In the first stage fieldstudy, the discontinuities were not found recognizable in the results ofboundary analysis methods. Then, pole reduction and upward continuation (5 kmand 10 km) were applied to the aeromagnetic data for revealing the deepereffects on data. The same boundary analysis methods were applied toaeromagnetic data after pole reduction and upward continuation. The resultswere compared with each other and the anomalies were associated with the faultsand previous studies. It is thought that there are tectonic boundaries that havenot yet been identified geologically in the study area.

Published
2017

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