Particulate scavenging and lateral transport processes in the Kaoping River-Sea System based on 210 Po and 210 Pb distributions and disequilibrium Hung.

Slides:

Advertisements

Similar presentations

Hydrodynamics and Sediment Transport Modelling Ramiro Neves

Advertisements

Figure 1: Location map of hydrographic and coastal sampling stations.

WATER DEPTH, VEGETATION, AND POLLUTANT REMOVAL IN A CONSTRUCTED WETLAND TREATING AQUACULTURE EFFLUENT Brian E. Dyson, Kim D. Jones, Ron Rosati* Department.

Particulate organic matter and ballast fluxes measured using Time-Series and Settling Velocity sediment traps in the northwestern Mediterranean Sea lead.

Estuarine Chemistry/Physical: Estuaries are where rivers meet the sea - the exact nature of the chemical processes occurring in an estuary generally depends.

Uranium and Thorium Distributions in the Sediments Collected from the Western South Okinawa Trough and the Northern South China Sea Chun-Yen Wang, Li-Wen.

Abstract As part of the VERTIGO project (VERtical Transport In the Global Ocean) we used Thorium-234 ( 234 Th) as a natural proxy for particle export.

Suspended particle property variation in Gaoping Submarine Canyon Ray T. Hsu and James T. Liu Institute of Marine Geology and Chemistry, National Sun Yat-sen.

GEOF236 CHEMICAL OCEANOGRAPHY (HØST 2012) Christoph Heinze University of Bergen, Geophysical Institute and Bjerknes Centre for Climate Research Prof. in.

OXYGEN ISOTOPES B.C. Schreiber U. Washington Dept. Earth & Space Science To be used only for scholarly purposes, consistent with “fair use” as prescribed.

Transports of Organic Carbon and Nutrients in the Kaoping River-Sea System J.-J. Hung, H.-M. Yang, E.-T. Yeh, Y.-C. Yeh, C.-M. Ho and I..-J. Lai Institute.

OCN520 Fall 2009 Mid-Term #2 Review Since Mid-Term #1 Ocean Carbonate Distributions Ocean Acidification Stable Isotopes Radioactive Isotopes Nutrients.

Lecture 2 - Major Ions in Sea Water What is the composition of seawater? What defines Major Ions? What are their concentrations? What are their properties?

Summary from last class… Importance of large-scale ocean circulation –climate, biogeochemistry, marine resources Characteristic “Types” of Ocean Circulation.

Methane and Nitrous Oxide distributions in natural waters around Taiwan Hsiao-Chun Tseng, Chen-Tung Arthur Chen, Ting-Yu Chen ＊, Hung-Ling Chen,Meng-Chia.

Weathering Sources in the Kaoping River Catchment, Southwestern Taiwan: Insights From Major and Trace Elements, Sr Isotopes and Rare Earth Elements C.-F.

GOES-R 3 : Coastal CO 2 fluxes Pete Strutton, Burke Hales & Ricardo Letelier College of Oceanic and Atmospheric Sciences Oregon State University 1. The.

J.M. Abril Department of Applied Physics (I); University of Seville (Spain) IAEA Regional Training Course on Sediment Core Dating Techniques. RAF7/008.

Lecture 3 Trace Metals in Seawater What are trace elements? Why are they important? Principal of Oceanographic Consistency. Profiles shapes as clues for.

OSMOSIS Primary Production from Seagliders April-September 2013 Victoria Hemsley, Stuart Painter, Adrian Martin, Tim Smyth, Eleanor Frajka-Williams.

Juan Carlos Ortiz Royero Ph.D.

Controls on Suspended Particle Properties and Water Clarity along a Partially-Mixed Estuary, York River Estuary, Virginia, USA Kelsey A. Fall 1, Carl T.

Chemical and Physical Structures of the Ocean. Oceans and Temperature Ocean surface temperature strongly correlates with latitude because insolation,

H41F – 0838: Constructional canyons built by sheet-like turbidity currents: Observations from offshore Brunei Darussalam K.M. Straub, St. Anthony Falls.

Turbidity and Water. Turbidity is a measure of water clarity, how much the material suspended in water decreases the passage of light through the water.

Satellite Data Assimilation into a Suspended Particulate Matter Transport Model.

Air-Surface Exchange of Persistent Substances by Michael McLachlan ITM, Stockholm University for the summer school The Advances.

Continuous monitoring in the benthic boundary layer off the Northwestern Florida shelf. William M. Landing, Stephanie Fahrny, Kevin Speer, Markus Huettel.

WQSTM Shallow-Water Simulation We received the shallow-water database from CBP circa autumn These are grab samples and measures collected when continuous.

Inputs to shelf seas- an overview Materials are introduced into coastal and shelf seas primarily through: rivers, atmosphere, groundwaters, ice processes.

Aqua Case Mussel culture area- Chalastra Thessaloniki Exercise Environmental Impacts of mussel farming o n water quality. Amalia Moriki, Sofia Galinou-Mitsoudi,

Stratification on the Eastern Bering Sea Shelf, Revisited C. Ladd 1, G. Hunt 2, F. Mueter 3, C. Mordy 2, and P. Stabeno 1 1 Pacific Marine Environmental.

Seawater Seawater is a solution of about 96.5% water and 3.5% dissolved salts. The most abundant salt in seawater is sodium chloride (NaCl). Most elements.

RA-228 AND RA-226 FROFILES FROM THE NORTHERN SOUTH CHINA SEA Hsiu-Chuan Lin, Yu-Chia Chung and Chi-Ju Lin Institute of Marine Geology and Chemistry, National.

Fig. 5 showed the ratio of DON:DOP in the TS. Different slopes and their corresponding locations were marked with the same color. The average ratio of.

Iron and Biogeochemical Cycles

Fig. 4. A framework configured to calculate a P budget. Shelf ( 1000 m )

Source vs. Sink Contributions to Atmospheric Methane Trends:

Sediment trap data. Constraining the seasonal particle flux in the eastern North Atlantic with Thorium isotopes M. Roy-Barman (1), R. El Hayek (1), I.

Physical Properties of Ocean Water

Kaijun Su a, Jinzhou Du a, *, Mark Baskaran b and Jing Zhang a State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai.

Controls on Suspended Particle Properties and Water Clarity along a Partially-Mixed Estuary, York River Estuary, Virginia Kelsey A. Fall 1, Carl T. Friedrichs.

Salinity of Ocean Water salinity a measure of the amount of dissolved salts in a given amount of liquid Ocean vs. Freshwater = amount of salt.

Lab 5 Physical and Chemical Properties of Sea Water

Salinity and Density Differences VERTICAL STRUCTURE, THERMOHALINE CIRCULATION & WATER MASSES.

Water Properties Surface Tension Viscosity Changes in State.

210 Po Enrichment Relative to 210 Pb in the Planktons Collected from the Northern South China Sea and the Luzon Strait P. Wang and Y. Chung Institute of.

Mean Ocean Concentrations. Vertical Variations Biolimiting.

Shallow -water sediments: Early diagenesis in sandy sediments Results from: Experiments laboratory field Field measurements.

P in marine sediments Overview: P Cycling in the Ocean Inputs and Outputs and Residence Time Sediment Chemistry of P Selective leach procedures & implications.

Phosphorus in marine sediments P : an abundant element in the crust: ~ 0.1% Like Nitrogen, Phosphorus is an essential nutrient There is evidence that P.

U-series Nuclides & Particles U.S. GEOTRACES Atlantic Implementation Workshop Sept Woods Hole Oceanographic Institution Bob Anderson.

1 IAEA/RCA Project Planing Meeting of RCA Project on Establilishing a Benchmark for Assessing the Radiological Impact of Nuclear Power Activities on the.

Redahegn Sileshi1, Robert Pitt2 , and Shirley Clark3

Massachusetts Bay Physical Processes 2011 compared to 2012

Transport and Reaction: An Overview

Non-diffusive transport processes

A Comparison of Profiling Float and XBT Representations of Upper Layer Temperature Structure of the Northwestern Subtropical North Atlantic Robert L.

John H. Trefry1, Robert P. Trocine1, Carrie M. Semmler2, Matthew B

SPM Suspended Particulate Matter

Elizabeth River PCB TMDL Study: Numerical Modeling Approach

Coastal CO2 fluxes from satellite ocean color, SST and winds

222Rn, oxygen, nutrients (nitrate, ammonia, phosphate)

Eddy correlation – basic principles

James River PCB TMDL Study: Numerical Modeling Approach

Shallow -water sediments: Early diagenesis in sandy sediments

Particulate and Dissolved 210Po and 210Pb in Water Columns from the

Iron and Biogeochemical Cycles

210Pb and Mass Flux Imbalance Between the Settling Particulates and

Radionuclide transport modelling

Presentation transcript:

Particulate scavenging and lateral transport processes in the Kaoping River-Sea System based on 210 Po and 210 Pb distributions and disequilibrium Hung G.W., Wang P., Shen Y.T.

Station locations in the KPSC region

Potential temperature vs. salinity diagram, showing characteristics of the typical West Philippine Sea (WPS) and South China Sea (SCS) waters and those of stations in the KPSC region.

Depth profiles of temperature, salinity and fluorescence for all stations in the study area.

Profiles of the suspended particulate matter (SPM) mg/kg for CW1-CW mg/kg for CW4 and CW5

Profiles of the SPM, fluorescence, and 210 Pb and 210 Po in both the particulate and dissolved phases.

Particulate 210 Pb and 210 Po concentrations vs. SPM for (a) and (b). Particulate 210 Po activities vs. fluorescence in the surface water. The linear regression was estimated excluding the data from CW1 and CW3 for (c). (a)(b) (c) (d) Plot of log specific activities of 210 Pb and 210 Po vs. log SPM for (d).

Plots of 210 Po vs. 210 Pb in the dissolved phase and in the total activities from all stations.

Profiles of total 210 Pb, 210 Po and 226 Ra concentrations in the KPSC region. The 226 Ra profile was estimated from data determined by Dr. Chung’s laboratory.

CW1CW2CW3CW4CW5 Inventory (dpm/m 2 )(0-75m) (0-50m) I Pb dissolved I Pb particulate I Po dissolved I Po particulate Residence time(y) T Pb dissolved T Pb particulate T Po dissolved T Po particulate Pb and 210 Po inventories and residence times in the surface waters in the KPSC region.

StationDepth 210 Pb FluxCoreDepthExcess 210 Pb (m)(dpm/m 2 /d)(m) Inventory (dpm/cm 2 ) Flux (dpm/m 2 /d) CW CW CW CW CW Comparison of 210 Pb flux due to particle sinking and calculated from the 210 Pb inventory in the sedimentary column.

Summary The dissolved 210 Po and 210 Pb values in the outlet region of the KPSC are generally higher than those observed in the KPSC. The particulate 210 Po and 210 Pb concentrations in the outlet region of the KPSC are generally lower than those in the KPSC, especially in the bottom layer. SPM profiles generally show an increase with depth to a maximum in the bottom layer and display an offshore decrease trend. Positive correlations between both 210 Pb and 210 Po in particulate phase and SPM concentrations as well as negative log specific activities of 210 Pb and 210 Po versus log SPM correlations are observed in the study area.

Summary 210 Pb is removed from the surface water with residence times of and years for dissolved and particulate 210 Pb. The residence times of 210 Po in the surface waters are and years for dissolved and particulate 210 Po. Comparing 210 Pb fluxes, calculated from the 210 Pb inventory in the sedimentary column and in the water column, suggest settling 210 Pb flux from the overlying water column is about % of the excess 210 Pb flux in the bottom sediments.