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张永根，天津大学地球系统科学学院副教授、博士生导师，入选“北洋学者·英才副教授”、“北洋学者·青年骨干教师”。本科毕业于吉林大学，博士毕业于中国地质大学（北京），期间赴美国亚利桑那大学水文与水资源系进行联合培养，师从美国工程院院士，世界地下水权威Shlomo Neuman及Marcel Schaap教授，之后在亚利桑那大学土壤系与水文系进行博士后研究。

主要研究兴趣是通过计算和实验的方法解决地下多孔介质（如土壤、地下水）的基本物理问题，以此来应用到诸如地下水资源、地下水/土壤环境、能源开采等实际工程问题。

开发了预测土壤水力参数的Rosetta3模型等，并构建了全球高分辨率土壤水力、热力学参数等数据集，相关工作受到新华网、人民网、国家自然科学基金委、美国地球物理协会（AGU）会刊EOS等报道。全球高分辨率土壤水力、热力学参数等数据集下载地址：http://www.u.arizona.edu/~ygzhang。主持国家自然科学基金-面上项目、青年项目、天津市基金、天津大学青年骨干教师项目等。

担任美国土壤学会Vadose Zone Journal副主编；担任国际土壤模拟联盟（ISMC）土壤参数工作小组Co-Leader；受欧洲地球科学联盟（EGU）等国际会议邀请做特邀报告；受Journal of Hydrology期刊邀请撰写相关领域综述；三次荣获美国地球物理协会（AGU）出版期刊年度发表文章被阅读数量最多的作者之一（2017-2018年度Reviews of Geophysics、2018-2019年度WRR、2018-2019年度JAMES）；部分研究成果入选ESI高引论文。

热忱欢迎地下水科学与工程、土壤物理、农田水利、水文与水资源、地质工程、自然地理学等相关专业的同学报考研究生。

研究方向

1. 土壤参数化方案

   
   

新一代预测土壤水力参数的Rosetta3模型，此模型提高了土壤水力参数的预测精度，提供了参数的协方差矩阵，使得预测参数可用于随机模拟、数据同化、数据融合等计算。基于页面计算程序、python、R等程序包如下。

A web-based interface of the Rosetta model developed by Todd Skaggs (USDA-ARS) and Ehsan Ghane (Michigan State University) can be accessed, respectively, by https://www.handbook60.org/rosetta/ and https://dsiweb.cse.msu.edu/rosetta/.  

The python version (compatible with python 2 and python 3) of Rosetta 1 and Rosetta 3 code is available for download at http://www.u.arizona.edu/~ygzhang/download.html along with a user manual. This code is intended for users/developers familiar with the python programming language, and it works in Linux, Windows 7+, and Mac OSX, independent of the Operating System.

The rosetta-soil python package by Todd Skaggs (USDA-ARS) is now on pypi  https://pypi.org/project/rosetta-soil/ and can be installed with pip install rosetta-soil.  The project page with instructions is at https://github.com/usda-ars-ussl/rosetta-soil

The R version of the Rosetta3 code was developed by Dr. Todd Skaggs (USDA-ARS) and you may find the details of how to install, make a prediction, and make graphs of the Rosetta model using R code by accessing http://ncss-tech.github.io/AQP/soilDB/ROSETTA-API.html.

2. 全球高分辨率陆面土壤数据集及陆面模式

全球高分辨率残余含水量、饱和含水量、饱和渗透系数、田间持水量、植物可利用水分等参数

本数据集可以水文模型、土壤模型、水分和污染物迁移模拟、陆面模型、区域和全球气候模型等提供参数化方案

3. 孔隙尺度模拟

三种不同土壤粒径及利用格子玻尔兹曼（Lattice Boltzmann）模拟的流场图

Welcome to my research website. 

I am an associate professor in Tianjin University, which is the first modern university in China. Before joining Tianjin University in July 2017, I was a research specialist / postdoctoral researcher in the Department of Hydrology and Water Resources, Department of Soil, Water, and Environmental Science at the University of Arizona since September, 2013, which ranks No.1 in the US in the field of hydrology. I was working with Prof. Marcel Schaap, Regents’ Prof. Shlomo Neuman, and Prof. Alberto Guadagnini at Politecnico Di Milano in Italy. I received my Ph.D in Hydrogeology from China University of Geosciences, Beijing in China in May, 2014; and B.S. in Hydrogeology from Jilin University, Changchun in 2007. In February 2012 to March 2014, I was a visiting student in the Department of Hydrology and Water Resources at the University of Arizona, Tucson, USA, working with Regents’ Prof. Shlomo Neuman and Prof. Marcel Schaap.   

I am interested in a variety of stuff ranging from subsurface flow dynamics in saturated and unsaturated soils, determination of saturated and unsaturated soil hydraulic properties, parameter estimation, geostatistics, uncertainty assessment. For more information, please check my website for details: http://www.u.arizona.edu/~ygzhang