ch 9

Question 1

what are the sulfur gasses

Answer 1

CS2

COS

dimethyl sulfide

Question 2

what are the halogen gasses

Answer 2

methyl chloride or iodide

Question 3

what are the nitrogen gasses

Answer 3

N2O

alkyl nitrates

Question 4

what are the carbon gasses

Answer 4

CH4

CO2

CO

Question 5

what gasses impact the climate

Answer 5

greenhouse gasses like CH4, DMS

increase cloudiness, air quality is affected and the ozone is depleted

Question 6

what are the types of gasses producedby photosynth that are net influxed into the ocean

Answer 6

sulfur gasses
carbon gasses
nitrogen gasses
halogen gasses

Question 7

what is the water. a significan sink for

Answer 7

O3

Question 8

what is the ocean a sink for

Answer 8

O3
persistent organic pollutatns like PCB, DDT, PFAAs
CFCs
SO2

Question 9

what gasses have fluxes that are variable in space and time

Answer 9

H2S
NH3
CO2
Hg

Question 10

what is the name for aerosols

Answer 10

air solutions

Question 11

what do aerosols affect

Answer 11

visibility
air quality
climate

Question 12

lifetime of aerosols

Answer 12

short lives, deposit to the surface in few horur to a couple of weeks

Question 13

aerosols emitted from the ocean are known as

Answer 13

sea spray
marine aerosols

Question 14

what is sea spray/ marine aerosols composed of

Answer 14

sea salts and oganics

Question 15

what is the major marine aerosol emission pathwat

Answer 15

bubble bursting

Question 16

how are larger aerosols emitted

Answer 16

by jet drop formatino

Question 17

what are larger aerosols rich in

Answer 17

sea salt- the majority

Question 18

what are smlaler aerosols produced by

Answer 18

film drop formation

Question 19

what are smaller aerosols rich in

Answer 19

organics similar to those that make up the SML

soluble and insoluble kind

Question 20

what is the change in organics observed in tthe winte

Answer 20

less organics because

Question 21

what do marine aerosols impact

Answer 21

the climate

Question 22

how do marine aerosols impact the climate directly

Answer 22

absorbing or scattering incoming radiation to warm or cool the surface of the earth respectively

Question 23

how do marine aerosols iimpact the climate indirecrtly

Answer 23

they act as cloud condensation nuclei CCN

leading to cloud formaiton and reflection of lightand the cooling of the surfcae of the earth

Question 24

the films in the thin film model are

Answer 24

stagnant and dominated by diffusion processes

Question 25

diffusion _ the gradient

Answer 25

weakens

Question 26

what is the rate limiting step for most gasses

Answer 26

diffusion through the seawater film is the slower rate limiting step

Question 27

does the film thickeness depend or not depend on the gas

Answer 27

it is not gas dependent

Question 28

what is the net flux described by

Answer 28

ficks law-- proportional to the concentration gradient

Question 29

what does the net flux depend on

Answer 29

the concentration gradient thickness of the film

Question 30

what is KhPa equal to

Answer 30

NAEC

Question 31

what is Da/Z equal to

Answer 31

piston velocity or transfer velocity

Question 32

what is Da

Answer 32

diffusion coefficient- it is diff for diff gasses and decreases with molecular weight

Question 33

what changes the diffusion coefficient and flux

Answer 33

increase with an increase in temp

Question 34

the fact that diff gasses have diff D indicates that within the film.

Answer 34

molecular diffusion domenates over turbulent diffusion bc turbulent diffusion moves entire parcels of water with all dissolved gasses in them

Question 35

how does the thin film exist in real life

Answer 35

as a surface microlayer

Question 36

what is high inthe sea surface microlayer

Answer 36

bacteria metals DOM

Question 37

how does the microlayer affect waves

Answer 37

it dampens the affect of wind on waves bc wind slides over water preventing drag and doesnt build up waves

Question 38

what does the thickness of the film depend on

Answer 38

wind speed wind generated turbulence erases the film and the bubble transport dominates

Question 39

what is the typical thickness of the film

Answer 39

10-60 um