CTD - Salinity and Temperature at Depth Jonathan Walter University of North Carolina at Wilmington CHM 576 2009 Jonathan Walter University of North Carolina.

Slides:

Advertisements

Similar presentations

Essential Question: What physical characteristics make up an ocean environment and how do they vary?

Advertisements

OCEAN CURRENTS AND WEATHER. Oceans currents are created by: surface wind, corliolis effect, land shape, and salt content and temperature of the water.

Ocean Structure and Circulation 1. Ocean Model Temperature Depth Surface Deeper WarmerColder 2.

Salinity of Ocean Water Linda Grenier and Alma Ritz Helms Project.

Ocean Currents Beth Roland Jacobs Fork Middle School Team 5 Mountaineers.

Ocean Currents Objective:

 The atmosphere and water are both fluids and behave in similar ways.

Ocean Water Chemistry Section Salinity -The amount of dissolved salt in water The ocean has 35g of salt per 1kg water or 35g salt per 1000g water.

How can the oceans be described? By: Jordan and Hanna.

OPEN OCEAN A. Lowery S. Mitchell. OPEN OCEAN BIOME Earth surface is 70% ocean water. Ocean biomes are very large, and are found all over the planet.

AOS 101 Weather and Climate Lisha M. Roubert University of Wisconsin-Madison Department of Atmospheric & Oceanic Sciences.

Seawater Chemistry 70% of the Earth is covered by ocean water!

Chapter 20 Section 1 Review Page 500

Chapter 20 Section 1 Review Page 500

Work Package 3 PROCEDURAL HARMONISATION Task 3.1: Assessment of procedures FixO3 General Assembly 14 th to the 16 th October 2014, Heraklion-CRETE Pericles.

I. The Salty Ocean A. Salinity 1. On average, one kilogram of ocean water contains about 35 grams of salts. That is 35 parts per thousand. 2. Total amt.

Earth Science: 15.1B Ocean Water and Life

WHY DO OCEANS AND CONTINENTS HAVE DIFFERENT THERMAL PROPERTIES? Continents heat up and cool down more quickly than oceans.

Ocean Water Chemistry Chap 14, Sec 4.

Oceans. Four Oceans of Planet Earth Names Names Pacific Pacific Atlantic Atlantic Artic Artic Indian Indian Characteristics Characteristics Largest Largest.

2.1 Exploring the Ocean. The water in Earth’s oceans varies in salinity, temperature, and depth The water in Earth’s oceans varies in salinity, temperature,

Oyster Harvests in the Chesapeake Bay. A River And an Ocean What Is an Estuary? A meeting place between:

15.1 Composition of Seawater.  The total amount of solid material dissolved in water  Mass of dissolved substances : Mass of the water sample  Shown.

Ocean Currents. Objective Ocean currents are cause by unequal heating and differences in salinity. The currents distribute heat around the planet.

What’s the story?.

Ocean Currents. Ocean currents are streams of water that can move millions of cubic meters of water per second. Ocean currents are streams of water that.

Ocean chemistry coulter.

Seawater Chemistry & Ocean Stratification 1. Key Points The salt in seawater is due in part to water’s unique properties. Seawater density is influenced.

Ocean Water Chemistry. How much salt?  Most places - 35 parts per thousand  Total amt of salt = SALINITY  Most Sodium Chloride  Salinity is lower.

Currents microsite.smithsonianmag.com -.

Ocean Chemistry Goal: Describe salinity and factors that are affected by changes in salinity levels. Agenda: 1. Wrap up ‘Ocean Profile’ lab 2. Warm-up.

What are ocean currents?

Ocean Water Chemistry and Currents. Ocean Water Chemistry Salinity: the amount of salt dissolved in ocean water –1kg of ocean water contains 35g of salt.

What percent of the Earth is water? a.97% b.50% c.85% d.70% Wednesday, January 23 rd.

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.

Seasonality of phytoplankton distributions in the Galapagos Marine Reserve A.M. McCulloch 1, W.V. Sweet 1, B.A. Schaeffer 1, J.M. Morrison 2, D. Kamykowski.

Climate and Climate Change Chapter 9. Warm Up O Which is more Dense? O Materials: plastic container, warm water, cup, ice water, food coloring O Predict:

Ocean Water. The salt has seeped into the oceans by dissolving out of the rocks, and being carried down rivers into the ocean for millions of years. Salinity-

Ocean Water Chemistry Chap 13 – Section 3. Why is ocean water salty? Undersea volcanoes erupted, ejecting chemicals into the water Rains eroded land washing.

Density in the ocean Density is primarily determined by temperature and salinity Cold water has a higher density than warm water Salt water has a higher.

Ocean Movements Rotating Earth influences basic motion of ocean and atmospheric currents (Coriolis Effect)

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.

Chapter 20 Section 1 Review Page 500

Chapter 11 S5 Currents and Climate.

The picture below shows the triangle trade route in the 1500s

Ocean Composition.

“where the rivers meet the sea”

Part 2: Abiotic Factors affecting Aquatic Ecosystems Pg

Currents and Climates.

Ocean Water Chemistry Section 13.3.

Warm-Up March 02, 2016 List the similar physical features for Earth and Mars. Compare Earth to the other planets in are solar system.

Ocean water contains salts and gases.

Global Currents and Winds

Properties of Ocean Water

The Composition of Seawater

Ocean Water Ch. 15.

Hydrosphere - Unit 3 OCEANS.

The picture below shows the triangle trade route in the 1500s

Movements of the Ocean Ocean Currents.

Currents and Climates.

IN: How does temperate affect ocean currents?

Mid Atlantic Water Property Measurements W. S

Deep Circulation Changes in density cause ocean currents Cold Warm

Hydrology Review Mrs. Klu and mr. Mulkey 5/8/18.

Unit: Water and the Atmosphere

Acid/Base Balance and Density

Event, March 19-24th 2013 Pressure.

Ocean Currents.

Presentation transcript:

CTD - Salinity and Temperature at Depth Jonathan Walter University of North Carolina at Wilmington CHM Jonathan Walter University of North Carolina at Wilmington CHM

Cruise Sampling Sites and Dates  M18  M23  M35  M42  M54  M61  Horseshoe Bend(HB)  M18  M23  M35  M42  M54  M61  Horseshoe Bend(HB) G Cruise 1 G Sept G Cruise 2 G Oct

CTD- Measures:  Depth  Salinity  Temperature  pH  O 2 Saturation  Time  Depth  Salinity  Temperature  pH  O 2 Saturation  Time Instrument: Seabird SBE 25 w/External Probes SBE 32 H2o Bottle Carousel & SBE 33 Real Time Deck Unit

Measurements  Salinity is measured through conductivity of the water.  Temperature is measured through resistance (changes with temperature).  Depth is measured through a pressure sensor (1 decibar is roughly equal to 1 meter depth).  Salinity is measured through conductivity of the water.  Temperature is measured through resistance (changes with temperature).  Depth is measured through a pressure sensor (1 decibar is roughly equal to 1 meter depth).

Cruise 1: Sept,

Cruise 2: Oct,

Cruise 1 Salinity: Comparing 2009 and 2008

Cruise 1 Temperature: Comparing 2009 and 2008

Cruise 2 Salinity: Comparing 2009 and 2008

Cruise 2 Temperature: Comparing 2009 and 2008

Cruise 1 Salinity Data

Cruise 2 Salinity Data

Cruise 1 Temperature Data

Cruise 2 Temperature Data

Cruise 1 Salinity

Cruise 2 Salinity

Conclusions  Deeper waters have higher salinity  Salt water is denser, thus deeper  Cruise 1 we see relatively similar temperatures, slightly cooler near HB.  Cruise 2 we saw cold river water meet warmer ocean water.  Cruise 1 we saw well mixed surface to deep salinity. Slight salt wedge at M35.  Cruise 2 we see a salt wedge, warm salt water meeting cold fresh water between M35 and M54  Deeper waters have higher salinity  Salt water is denser, thus deeper  Cruise 1 we see relatively similar temperatures, slightly cooler near HB.  Cruise 2 we saw cold river water meet warmer ocean water.  Cruise 1 we saw well mixed surface to deep salinity. Slight salt wedge at M35.  Cruise 2 we see a salt wedge, warm salt water meeting cold fresh water between M35 and M54