PPT-Oceanic Biogenic Volatile Organic Compounds (BVOCs): formation processes and ocean-atmosphere

Oceanic Biogenic Volatile Organic Compounds BVOCs formation processes and oceanatmosphere exchange Hang Qu Ruixiong Zhang April 16 2014 Outline Introduction OVOCs f ormation processes Oceanatmosphere exchange. Redux. The separated Gulf Stream (GS) is one of the ocean ‘hot spots’ for heat and water loss to the atmosphere. Under this area of enhanced surface exchange, the ocean responds by altering its stratification and forming a water mass with deep winter mixed layers of up to 500m thickness. In the North Atlantic Ocean, this subtropical mode water is called Eighteen Degree Water (EDW). Data indicate that frontal processes are important in EDW formation: much like atmospheric convection can be affected by atmospheric frontal dynamics that does not exist in a simple 1-D atmospheric boundary layer response to heating from below. Approaches to study ecosystems. What is a “global” biogeochemical cycle?. Why are they studied?. Basics of the C cycle and its links to O. A counterintuitive idea about atmospheric O. 2. What role to freshwater systems play in the global C balance?. Lecture 2: . Characteristics of the . atmosphere. Fresh snow… . Feb/06/2016. Some parameters . of Earth. .. Earth’s rotation rate . . Ω . 7.27 × 10. −5. s. −1. Surface gravity . . g . 9.81 ms. Lecture 1: Overview & Introduction. Dawn.. . a. fter the blizzard of Jan/23/2016. How it began …. How old is the universe?. Approximately 13.7 billion years old…. One theory says that baby universe came out with a . Arnaud Czaja. a.czaja@imperial.ac.uk. Outline. Monday Part 1: What drives oceanic & atmospheric motions? . Monday Part 2: Geostrophic balance . Tuesday Part 3: Frictional & . diabatic. effects. Lecture 1: Overview & Introduction. Dawn.. . a. fter the blizzard of Jan/23/2016. How it began …. How old is the universe?. Approximately 13.7 billion years old…. One theory says that baby universe came out with a . Boshongo. people of central Africa, in the beginning, there was only darkness, water, and the great god . Bumba. . One day . Bumba. , in pain from a stomach ache, vomited up the sun. The sun dried up some of the water, leaving land. Still in pain, . Figure 14.3 Average currents at 10m calculated from the Modular Ocean Model driven by observed winds and mean heat fluxes from 1981 to 1994. The model, operated by the NOAA National Centers for Environmental Prediction, assimilates observed surface and subsurface temperatures. From . Non-living synthesis of simple . organic. molecules. All of the elements found in organic compounds are thought to have existed on Earth and in the rest of the solar system when the Earth formed. . But . Composition of the atmosphere. Gas solubility. Gas Exchange Fluxes. Effect of wind. Global CO. 2. fluxes by gas exchange. Emerson and Hedges: Chpts 3 and 10. Sarmiento and Gruber (2002) Sinks for Anthropogenic Carbon. Atmosphere Systems Interact . to . Create Hurricanes. Questions. What is a hurricane. ?. What four . conditions are necessary for hurricane . formation?. What . happens as hurricanes approach land?. What is a . Lémery. . nof. a chemistry book that classified substances according to their origin as mineral, vegetable, or animal. Compounds derived from plants and animals became known as . organic . and those derived from nonliving sources were inorganic.. The Carbon Cycle. Lecture 48 . Biomarkers Effects of Thermal Maturation. Nearly . all living organisms have amino acids in the L configuration. . Other biomolecules also have unique 3D orientations. Inversion . Objective & . Essential Question. LO: . I can describe oceanic landforms. . (5.E.3A.2). EQ: . What are the characteristics of continental and oceanic landforms?. Under the Sea. Ocean basin is the .