I study how water and soil and rocks interact, with focuses on using surface deformation
and changes in gravity can be used to understand subsurface water movement, the mechanisms
of water and chemical weakening on rock strength and progressive rock failure, and
各种应用水文地质和渗流带工程. 我做过助理
自2019年起担任NMT教授.
职业生涯:
I completed a BS in Mathematics (UNM), followed by a MS in Hydrology (NMT) and a PhD
地球科学(重点是地球物理学，NMT). 我的博士工作是作为研究生完成的
intern in the Geomechanics Department at Sandia National Labs, an incredible experience
of 工作ing on basic science in outstanding service to the country and world. 然后我
served as a hydrogeologist at the New 墨西哥 Bureau of Geology for five years. At
the Bureau, I 工作ed on hydrogeologic studies for small communities, state-wide assessments
of groundwater storage change and natural hazards, and supporting experimental 工作
了解碳捕获和地下储存.
To be able to mentor young people, I became an assistant professor in 2019. 我有
spent my life in New 墨西哥, but intellecutally have moved across disciplines within
地球科学.
研究:
My research crosses hydrology, geophysics and rock mechanics to understand applied
hydrologic questions, hydrogeodesy, reservoir and geothermal coupled processes, and
水与裂隙在景观发展中的作用.
应用水文
Currently, my group is 工作ing on understanding basin-scale sources of groundwater
using environmental tracers and water chemistry (student: Ethan Williams), and on
measuring hydrologic properties of soils to understand how climate change will alter
水平衡(学生:凯尔·加兰特).
这项工作需要大量的现场和实验室工作. 地下水研究涉及测量
of groundwater levels, surface water flow, collection of water quality samples and
水质样本分析. 通过综合调查，我们可以理解
地下水和地表水的连接方式不同.
研究 in the vadose zone largely consists of opening and describing soil pits,
followed by laboratory analysis of physical, chemical and hydrologic properties. 这
工作 is supporting ecosystem climate manipulation experiments at the Sevilleta Long-Term
生态研究站.
Hydrogeodesy
Normal hydrologic approaches either use direct measurements of groundwater levels
to understand aquifers usually at single points, or use water quality methods such
as stable water isotopes, groundwater age dating, or general chemistry to indirectly
了解更大的系统是如何工作的.
Hydrogeodetic techniques, which link surface deformation measured by GPS or satellite,
or small changes in gravitational acceleration to changes in water storage in aquifers,
hold the promise to revolutionize how we understand water movement in the subsurface.
Because they average over large areas, single sets of measurement can tell you how
an entire portion of an aquifer or watershed behaves--even up to entire mountain ranges.
Currently, I am performing repeat gravity surveys on land to understand focused recharge
supporting Dan Cadol, and 工作ing with researchers at UA-Fairbanks on using satellite-based
deformation mesurements (InSAR) to understand groundwater changes across all of New
墨西哥. I am also supporting 工作 at NMT using tiltmeters to understand flow in karst
佛罗里达的管道.
这 工作 combines data analysis, modeling, and field deployments; something for everyone.
The repeat gravity 工作 requires someone who can do extremely careful, detailed field
工作. 测量结果处于当前仪器极限的边缘.
环境进行性岩石破坏
Recent research has shown that the water-mediated fracturing at the surface controls
基岩区机械风化和水运动的速率. 前面的
一般认为，裂缝发生在临界(高)应力下. 现在，我们相信
fracturing happens during thermal fatigue and chemically controlled stress corrosion
骨折. 这 means that 'standard' rock properties may not predict the mechanical
岩石和地貌的风化作用. 相反，主要是亚临界断裂特性
盐和水作为媒介——意志.
这 工作 is done in collaboration with geomorphologists, geomechanicians, hydrologists
and engineers, linking land surface ages to rock properties via measurements and models.
My group is focused on performing laboratory testing of rocks under controlled environmental
conditions, providing key observations of process and properties to inform geomorphic
解释.
We are currently performing tests in collaboration with UNC-Charlotte and Colombia
University focused on mechanical weathering in hyper-arid, frozen environments.
地下热-水力-机械-化学过程 能源
We are answering questions of how to predict how fluids like water, CO2 and hydrogen
相互作用和岩石. 这些问题对当前的努力至关重要
减缓气候变化. 为了进行实验，我们进行了扩展实验模拟
reservoir conditions with as we push different fluids through rocks and monitor changes
在化学上，强度和渗透性. 这些信息随后被建模者使用
and engineers to understand if a system is appropriate as a storage reservoir or as
地热资源.
这 工作 is laboratory intensive, with the student performing high-pressure and high
temperature experiments measuring hydraulic and mechanical properties, performing
chemical analysis, and using petrographic (thin section) observations to understand
样品怎么了.
Current projects include supporting DOE CarbonSafe projects, the DOE Southwest Carbon
Sequestration Partnership, and DOE-funded research on rare-earth elements in coal.
We are actively seeking projects in CCUS, hydrogen storage and geothermal.
教学领域:
- geol440:水文理论和野外方法
- hydr514:水气带水文学
- HYDR 555:地质环境下的岩石断裂
- HYDR 556:自然复杂性
- hydr558:水文环境示踪剂
- GEOL 482 / HYDR 572:专题:工程地质学
- GEOP 505 /数学587:时间序列分析
现团体成员:
Andrew Luhmann(惠顿学院，助理教授)
Ronni Grapenthin (University of Alaska - Fairbanks, assistant professor )
王赛(中国科学研究院研究员)
罗伯特·查尔诺塔(研究助理，PRRC)
杰森·西蒙斯(研究助理，PRRC)
伊桑·威廉姆斯(MS, Hydrology, E&ES、NMT)
Marissa Fichera(博士，水文学，E&ES, NMT，从2023年春季开始)
凯尔·加兰特(理学学士，地质学，E&ES、NMT)
安东尼奥·查韦斯(学士，环境科学，E&ES、NMT)
艾米丽·格雷夫斯(博士，地球物理学，UAF)
毕业小组成员:
Samuel Otu (MS, Hydrology, E&ES / PRRC NMT)
Jason Simmons (MS, Hydrology, E&ES/PRRC, NMT，现为PRRC研究助理)
吴志迪(MS, Hydrology, E&ES/PRRC, NMT, Luhmann为顾问)