A5089599804- Ocean Acidification Effects and Responses
- Marine and coastal ecosystems
- Analytical Chemistry and Sensors
- Fish Ecology and Management Studies
- Water Quality Monitoring and Analysis
- Marine Biology and Ecology Research
- Soil and Water Nutrient Dynamics
- Microbial Community Ecology and Physiology
- Delphi Technique in Research
- Analytical chemistry methods development
- Water Quality Monitoring Technologies
- Gas Sensing Nanomaterials and Sensors
University of Montana
2020-2025
Woods Hole Oceanographic Institution
2024
State Key Laboratory of Marine Environmental Science
2019
Xiamen University
2017-2019
Abstract Measurements of riverine dissolved inorganic carbon, total alkalinity (A T ), pH, and the partial pressure carbon dioxide ( p CO 2 ) can provide insights into biogeochemical function rivers, including processes that control biological production, chemical speciation, air‐water fluxes. The complexity created by these combined dictates studies be made over broad spatial temporal scales. Time‐series data like are relatively rare, however, because sampling measurements labor intensive...
Coastal wetlands laterally export a major portion of their fixed atmospheric CO2 to coastal oceans as inorganic carbon via tidal exchange, which is considered potential mechanism blue storage in the ocean due long residence time (thousands years) carbon. Such an from saltmarshes can be evaluated by fluxes total dissolved (DIC) and alkalinity (TA) creeks. The exported TA should distinguished DIC represent long-term sink ocean, but knowledge exports remains limited direct measurements....
Observations of the marine CO2 system are important for understanding ocean acidification, air-sea fluxes and carbon cycle in general. A variety autonomous situ instruments have been developed used towards this end. There is, however, a lack inter-comparison studies currently available sensor technologies. In study, total 10 including commercially pH, partial pressure (pCO2), alkalinity (AT) sensors were tested compared 5000 L seawater tank located at Scripps Institution Oceanography (SIO),...
Abstract Total alkalinity (A T ) is an important parameter in the study of aquatic biogeochemical cycles, chemical speciation modeling, and many other fundamental anthropogenic (e.g., industrial) processes. We know little about its short‐term variability, however, because studies are based on traditional bottle sampling typically with coarse temporal resolution. In this work, autonomous A sensor, named Submersible Autonomous Moored Instrument for Alkalinity (SAMI‐alk), was tested freshwater...
Abstract Inland waters have an important role in the global carbon cycle, contributing significantly to terrestrial fluxes through downstream export and exchange of CO 2 with atmosphere. However, large uncertainties freshwater inorganic remain. One factor is uncertainty carbonate system calculations for estimating partial pressure ( p ) from pH alkalinity systems. The stems largely inaccurate values caused by glass electrode measurements low ionic strength This study compares indicator‐based...
Abstract Rivers efficiently collect, process, and transport terrestrial‐derived carbon. River ecosystem metabolism is the primary mechanism for processing Diel cycles of dissolved oxygen (DO) have been used decades to infer river metabolic rates, which are routinely predict carbon dioxide (CO 2 ) with uncertainties assumed stoichiometry ranging by a factor 4. Dissolved inorganic (DIC) has less directly because it more difficult quantify, involves complexity speciation, as shown in this...
A sense of kuleana (personal responsibility) in caring for the land and sea. An appreciation laulima (many hands cooperating). understanding aloha 'āina (love land). The University Hawai'i at Manoa hosted 2023 Ecological Dissertations Aquatic Sciences (Eco-DAS) program, which fostered each these intentions by bringing together a team early career aquatic ecologists week networking collaborative, interdisciplinary project development (Fig. 1). Association Limnology Oceanography (ASLO)...