A5032917150- Ocean Acidification Effects and Responses
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Atmospheric and Environmental Gas Dynamics
- Oceanographic and Atmospheric Processes
- Marine Bivalve and Aquaculture Studies
- Microplastics and Plastic Pollution
- Water Quality Monitoring Technologies
- Medical Imaging and Analysis
- Carbon Dioxide Capture Technologies
- Atmospheric Ozone and Climate
- Chemical and Physical Properties in Aqueous Solutions
- Calcium Carbonate Crystallization and Inhibition
- Analytical Chemistry and Sensors
- Methane Hydrates and Related Phenomena
- Coral and Marine Ecosystems Studies
- Thermodynamic properties of mixtures
- Marine and fisheries research
- Phase Equilibria and Thermodynamics
- Geological and Tectonic Studies in Latin America
- Geological and Geochemical Analysis
- Meteorological Phenomena and Simulations
- Renal function and acid-base balance
- Atmospheric chemistry and aerosols
- Microbial Community Ecology and Physiology
University of Washington
2021-2024
Cooperative Institute for Research in Environmental Sciences
2021-2024
NOAA Pacific Marine Environmental Laboratory
2021-2024
National Oceanic and Atmospheric Administration
2021-2024
College of Marin
2016-2021
University of South Florida St. Petersburg
2016-2021
University of Miami
2013-2015
Abstract. Oceanic dissolved inorganic carbon (TC) is the largest pool of that substantially interacts with atmosphere on human timescales. TC increasing through uptake anthropogenic dioxide (CO2), and seawater pH decreasing as a consequence. Both exchange CO2 between ocean response are governed by set parameters interact chemical equilibria, collectively known marine carbonate system. To investigate these processes, at least two system's typically measured – most commonly, from TC, total...
Effective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional global processes. Here we describe new updated best practice standards for discrete chemical observations, specifically those dealing with column header abbreviations, quality control flags, missing value indicators, standardized calculation of certain properties. These have been developed the goals...
Abstract Accurately predicting future ocean acidification (OA) conditions is crucial for advancing OA research at regional and global scales, guiding society's mitigation adaptation efforts. This study presents a new model‐data fusion product covering 10 surface indicators based on 14 Earth System Models (ESMs) from the Coupled Model Intercomparison Project Phase 6 (CMIP6), along with three recent observational carbon data products. The include fugacity of dioxide, pH total scale, hydrogen...
Abstract We introduce three new Empirical Seawater Property Estimation Routines (ESPERs) capable of predicting seawater phosphate, nitrate, silicate, oxygen, total titration alkalinity, hydrogen scale pH (pH T ), and dissolved inorganic carbon (DIC) from up to 16 combinations property measurements. The routines generate estimates neural networks (ESPER_NN), locally interpolated regressions (ESPER_LIR), or both (ESPER_Mixed). They require a salinity value coordinate information, benefit...
Abstract. Internally consistent, quality-controlled (QC) data products play an important role in promoting regional-to-global research efforts to understand societal vulnerabilities ocean acidification (OA). However, there are currently no such for the coastal ocean, where most of OA-susceptible commercial and recreational fisheries aquaculture industries located. In this collaborative effort, we compiled, quality-controlled, synthesized 2 decades discrete measurements inorganic carbon...
Abstract. For about 2 decades, oceanographers have been installing oxygen sensors on Argo profiling floats to be deployed throughout the world ocean, with stated objective of better constraining trends and variability in ocean's inventory oxygen. Until now, measurements from these Argo-float-mounted mainly used for localized process studies air–sea exchange, upper-ocean primary production, biological pump efficiency, minimum zone dynamics. Here, we present a new four-dimensional gridded...
An unusual "triple-dip" La Niña, described in Sidebar 3.1, had continuing, wide-spread ramifications for the state of ocean and climate 2022.Triple-dip Niñas are not unprecedented, but until now have always followed an extreme El Niño.Anomalously low sea-surface temperatures (SSTs) eastern tropical Pacific persisted from August 2020 through December 2022, with only a brief intermission May-July 2021.Strengthened easterly trade winds drove anomalously strong westward surface currents brought...
Abstract. A common strategy for calculating the direction and rate of carbon dioxide gas (CO2) exchange between ocean atmosphere relies on knowledge partial pressure CO2 in surface seawater (pCO2(sw)), a quantity that is frequently observed by autonomous sensors ships moored buoys, albeit with significant spatial temporal gaps. Here we present monthly gridded data product pCO2(sw) at 0.25∘ latitude longitude resolution northeastern Pacific Ocean, centered California Current System (CCS)...
Abstract The ocean carbonate system is critical to monitor because it plays a major role in regulating Earth's climate and marine ecosystems. It monitored using variety of measurements, commonly understood that all components seawater chemistry can be calculated when at least two variables are measured. However, several recent studies have highlighted systematic discrepancies between directly measured these large implications for efforts measure quantify the changing carbon cycle. Given...
Certified reference materials (CRMs) for oceanic carbonate system measurements are critical verifying the accuracy of laboratory protocols and reliability field sensors. CRMs certified total alkalinity dissolved inorganic carbon, parameters that (1) stable a long period time when sample is properly stored (2) not affected by changes in temperature pressure. In experimentation initially designed to measure boron salinity ratio seawater, an interesting result has emerged regarding CRMs. A...
Abstract. Over a decade ago, oceanographers began installing oxygen sensors on Argo floats to be deployed throughout the world ocean with express objective of better constraining trends and variability in ocean’s inventory oxygen. Until now, measurements from these Argo-mounted have been mainly used for localized process studies air–sea exchange, biological pump efficiency, upper primary production, minimum zone dynamics. Here we present four-dimensional gridded product interior oxygen,...
Although ocean biogeochemistry plays an important role in the regulation of Earth’s climate and marine habitats, key questions remain about expected changes to global biogeochemical processes associated with anthropogenic impacts on Earth system. The OneArgo array is a revolutionary observing system that delivers critical observations four dimensions near-real-time. Recent expansion Argo program include floats carrying suite sensors (i.e. BGC-Argo mission) providing new...
The ocean plays an essential role in regulating Earth’s climate, carbon storage, and nutrient cycles, making it indispensable to both environmental health human well-being. As anthropogenic pressures on marine systems increase, there is urgent need for high-resolution, dynamic data monitor better understand the biogeochemical processes that drive productivity climate feedback.Newly developed, four-dimensional (4D) Biogeochemical-Argo (BGC-Argo) products (4D-BGC), enabled by high-resolution...
The ocean is a major reservoir of carbon, absorbing around 30% all anthropogenic carbon emissions and storing this in the deep as dissolved inorganic (DIC). This absorption mitigates intensity climate change, but it has myriad negative biological ecological impacts, including reduced organism survivability habitat compression caused by acidification. One pathway transfer from surface to through pump (BCP) – series processes which dioxide (CO2) photosynthetically fixed phytoplankton,...
Abstract. As the largest active carbon reservoir on Earth, ocean is a cornerstone of global cycle, playing pivotal role in modulating health and regulating climate. Understanding these crucial roles requires access to broad array data products documenting changing chemistry as vast interconnected system. This review article provides comprehensive overview 60 existing carbonate products, encompassing compilations cruise datasets, derived gap-filled model simulations, thereof. It intended help...
Abstract. Oceanic dissolved inorganic carbon (TC) is the largest pool of that interacts considerably with atmosphere on human timescales. TC increasing through uptake anthropogenic dioxide (CO2), and seawater pH decreasing as a consequence. Both exchange CO2 between ocean response are governed by set parameters interact chemical equilibria, collectively known marine carbonate system. To investigate these processes, at least two system's typically measured – most commonly, from TC, total...
Abstract We evaluate the impact of anthropogenic carbon ( C ant ) accumulation on multiple ocean acidification (OA) metrics throughout water column and across major basins using GLODAPv2.2016b mapped product. OA is largely considered a surface‐intensified process caused by air‐to‐sea transfer ; however, we find that partial pressure dioxide gas p CO 2 ), Revelle sensitivity Factor (RF), hydrogen ion concentration ([H + ]) exhibit their largest responses to well below surface (>100 m)....
Abstract Mapped monthly data products of surface ocean acidification indicators from 1998 to 2022 on a 0.25° by spatial grid have been developed for eleven U.S. large marine ecosystems (LMEs). The were constructed using observations the Surface Ocean CO 2 Atlas, co-located properties, and two types machine learning algorithms: Gaussian mixture models organize LMEs into clusters similar environmental variability random forest regressions (RFRs) that trained applied within each cluster...
Abstract Seawater carbonate chemistry observations are increasingly necessary to study a broad array of oceanographic challenges such as ocean acidification, carbon inventory tracking, and assessment marine dioxide removal strategies. The uncertainty in seawater observation comes from unknown random variations systematic offsets. Here, we estimate the magnitudes these components for discrete open‐ocean measurements Global Ocean Data Analysis Project 2022 update (GLODAPv2.2022). We use both...
This work describes an improved algorithm for spectrophotometric determinations of seawater carbonate ion concentrations ([CO32-]spec) derived from observations ultraviolet absorbance spectra in lead-enriched seawater. Quality-control assessments [CO32-]spec data obtained on two NOAA research cruises (2012 and 2016) revealed a substantial intercruise difference average Δ[CO32-] (the between sample's value the corresponding [CO32-] calculated paired measurements pH dissolved inorganic...
The Pitzer equations have been used to fit the apparent molal adiabatic compressibility of electrolytes in water as a function temperature. estimate partial for number cations and anions 0.725 m NaCl average seawater (S = 35 g kg–1). calculated results are good agreement with direct measurements seawater. compressibilities estimated from model can be make more reliable estimates effect pressure on activity coefficients ionic equilibria other mixed electrolyte solutions at high pressures.