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CONvectiveTRansportof2Active2Species2in2the2Tropics Guam ...

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CONvective TRansport of Active Species in the Tropics Guam, JanFeb 2014 CONvective TRansport of Active Species in the Tropics Guam, JanFeb 2014
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Page 1: CONvectiveTRansportof2Active2Species2in2the2Tropics Guam ...

CONvective TRansport of2Active2Species2in2the2TropicsGuam,2Jan−Feb 2014

CONvective TRansport of2Active2Species2in2the2TropicsGuam,2Jan−Feb 2014

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Weather & Climate Science

Ms. Alison RockwellNCAR/Earth Observing Laboratory Education & Outreach Coordinator

Dr. Ross Salawitch University of Maryland CONTRAST Scientist

Dr. Maria NavarroUniversity of Miami CONTRAST Scientist

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Flying Laboratory

NSF/NCAR HIAPER Research Aircraft

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Flying Laboratory

NSF/NCAR HIAPER Research Aircraft

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FA

AM

BA

e-146

MBL -

6 k

m

Intense solar radiation and warm sea surface temperature in the ;YVWPJHS�>LZ[LYU�7HJPÄJ�WYVK\JL�KLLW�JVU]LJ[P]L�JSV\KZ��

Mid-altitude outflow

Low-altitude inflow & outflow

Designed by Alison Rockwell NCAR/EOL

Troposphere

Lower Stratosphere

Net zero radiative heatingAir

descending

Rising warm air lofts chemical compounds

released by marine organisms

NA

SA

Glo

bal H

aw

k

14 -

19 k

m

Warm tropical ocean waters enhance production of ZOVY[�SP]LK�VYNHUPJ�IYVTPUL�HUK�PVKPUL�JVTWV\UKZ�I`�THYPUL�

VYNHUPZTZ��;OLZL�OHSVJHYIVUZ��OHSVNLU�JVU[HPUPUN�VYNHUPJ�JVTWV\UKZ��HYL�[OLU�YLSLHZLK�PU[V�[OL�H[TVZWOLYL�

)Y6�HUK�*S6�YLHJ[��SLHKPUN�[V�Z[YH[VZWOLYPJ� VaVUL��63) depletion

CONTRAST*65]LJ[P]L�;9HUZWVY[�VM�(J[P]L�:WLJPLZ� PU�[OL�;YVWPJZ

.\HT�!!����1HU\HY`������-LIY\HY`�����

TropopauseAir

ascendingN

SF/N

CA

R H

IAPER

5 -

15 k

m Br I IO

Long-lived bromocarbons

BrO

3VUN�SP]LK�JOSVYVÅ\VYVJHYIVUZ���Z\USPNO[���O`KYV_`S��6/���������JOSVYPUL�TVUV_PKL��*S6�

3VUN�SP]LK�IYVTVJHYIVUZ���Z\USPNO[���O`KYV_`S��6/� ��IYVTPUL�TVUV_PKL��)Y6�

:OVY[�SP]LK�IYVTVJHYIVUZ���Z\USPNO[���O`YKV_`S��6/�� IYVTPUL�TVUV_PKL��)Y6��HUK�VY�PVKPUL�TVUV_PKL��06�

Short-lived halocarbons decompose, yielding:

)Y6�HUK�06�YLHJ[�YLTV]PUN�[YVWVZWOLYPJ�VaVUL��63)

High-altitude slow ascent from

outflow

(PY�^P[OPU�JVU]LJ[P]L�JSV\KZ�OHZ�L_[YLTLS`�SV^�VaVUL�� H�\UPX\L�JOLTPJHS�LU]PYVUTLU[�[OH[�^PSS�IL�

Z[\KPLK�PU�KL[HPS�MVY�[OL�MPYZ[�[PTL�

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✭Guam

Image courtesy of WikiCommons & the World Ocean Atlas

Why Guam?

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Why Guam?

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Photo by Adam Sobel

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The People of CONTRAST

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The People of CONTRAST

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The People of CONTRAST

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The People of CONTRAST

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The People of CONTRAST

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The People of CONTRAST

Maria Norrova Instrument: Whole Air Sampler

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Venezuela

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Why are we studying this?

Impacts of human activity on atmospheric composition

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ITCZ: Inter-tropical Convergence Zone rainy region of the tropics

SouthernHemisphere

Northern Hemisphere

Guahan

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15º N

10º N

5º N

Guam

Red & Yellow: Aircraft flight track Note aircraft did return to GuamEQ

ITCZ

Aircraft track flown Sat, 8 Feb (yellow) on top of satellite cloud map

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Northern Hemisphere

Carbon Monoxide

Hei

ght (

m)

Ozone

Ozone (O3): Compromises air quality & causes global warming Carbon monoxide (CO): Produced by combustion of fossil fuel & biomass burning

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Southern HemisphereH

eigh

t (m

)

Ozone (O3) Carbon Monoxide

Ozone (O3): Compromises air quality & causes global warming Carbon monoxide (CO): Produced by combustion of fossil fuel & biomass burning

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Small Particles

Hei

ght (

m)

Northern Hemisphere

Small particles: Particularly harmful to babies & elderly

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outher

Small particles: Particularly harmful to babies & elderly

NH value

Small Particles

Hei

ght (

m)

Southern Hemisphere

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www.facebook.com/ncareol

www.eol.ucar.edu/contrast/eo

www.YouTube.com/ncareol

Learn More

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?Any Questions?


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