Observation Plans of AIPO Program Jianping Li and Guoxiong Wu LASG, Institute of Atmospheric Physics

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Observation Plans of AIPO Program Jianping Li
and Guoxiong WuLASG, Institute of Atmospheric
Physics (IAP), Chinese Academy of Sciences
(CAS)Beijing 100029, ChinaApril 23-25, 2007,
Beijing
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What is AIPO Program?The National Basic Research
Program of China /973 ProgramOcean-Atmosphere
Interaction over the Joining Area of Asia and
Indian-Pacific Ocean (AIPO) and Its Impact on the
Short-Term Climate Variation in China

• Period 2006.09 - 2011.09
• Supported by Ministry of Science and Technology
  (MOST) of China
• Chief Scientist Guoxiong Wu
• Chief Scientist Assistant Jianping Li

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RECOMMENDED JONTLY BY CAS, NSFC, CMA and SOA
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• OUTLINE
• AIPO Where and Why?
• Key Scientific Issues
• Subprojects of AIPO Program
• Observation Plans
• Some Progresses
• Summary

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The AIPO joining area
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WP Flow
????
SAM
EAM
Typhoons invade
AM
Three monsoon systems interact
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2. KEY SCIENTIFIC ISSUES

• The theme of the program is to identify the
  characteristics, patterns, and causes of air-sea
  interactions over the AIPO joining area and the
  intrinsic mechanisms of their impacts on the
  short-term climate anomalies over China.

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3. SUBPROJECTS
Western Pacific gyre interaction between tropics
and subtropics and its relationship with the
western Pacific anticyclone
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Air-sea interaction over the Indian Ocean and its
impacts on the Asian monsoon
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Air-sea coupling process over Western
Pacific-Eastern Indian Ocean warm pool and its
impacts on the climate over China
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Water cycle over Asian Monsoon Area
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Development and improvement of CGCM
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Ocean data assimilation and East Asia climate
predictability
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Modulation of air-sea interaction by land-sea
thermal contrast
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1st subproject Western Pacific gyre interaction
between tropics and subtropics and its
relationship with the western Pacific anticyclone
EA-WP
Heat Transport
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TP
IO-EA
EA Monsoon
IO Air-sea
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EA Monsoon
Warm Pool
ISO
IO-WP
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4th subproject Water cycle over the AIPO Area
????? Sudden flood
????? Persistent drought/flood
Impacts of ocean thermodynamic and dynamic
processes on Asian Monsoon hydrological cycle
The relationship of Asian Monsoon System and
vapor transport track and intensity Impacts of
vapor transport anomalies on flood and drought in
China Observations of Air-sea fluxes over South
China Sea.
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5th subproject Development and improvement of
OGCM

• Development of a new Generation Oceanic General
  Circulation Model (OGCM) to describe
  wave-breaking and current-mixing processes study
  influence of waves on air-sea exchange improve
  short wave radiation penetration
  parameterization develop a new OGCM.
• Improvement of Atmospheric General Circulation
  Model (AGCM) to study the influence of wave on
  air-sea flux exchange to improve cloud
  parameterization and to combine the radiating
  processes to enhance model performance.
• Assessment and development of air-sea coupling
  mode to evaluate and promote the existing
  air-sea coupling model to explore how the
  improvement of the specific physical processes
  can influence the integrating performance of the
  coupling model and to further develop and
  improve air-sea coupling model.

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6th subproject Ocean data assimilation and East
Asia climate predictability

• Ocean data assimilation
• to improve ocean data assimilation
  technique develop variant ocean data
  assimilation system of high spatial resolution
  for AIPO area.
• Predictability of ENSO and monsoon
• the nonlinear behavior of ENSO events
  predictability dynamics and its impacts on East
  Asian Monsoon predictability the mechanisms of
  Spring Predictability Barrier of ENSO events
  to provide new thinking for ENSO and East Asian
  Monsoon prediction.

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7th subproject Modulation of air-sea interaction
by land-sea thermal contrast

• Modulation of air-sea interaction over the Indian
  Ocean by land-sea thermal contrast over
  Asia-India-Australia area reveal how land-sea
  thermal contrast over Asia-India-Australia area
  affects air-sea interaction over the Indian Ocean
  and the northern and southern hemisphere
  interaction, and to investigate how it affects
  the short-term climate variation in China.
• Modulation of air-sea interaction over Western
  Pacific by land-sea thermal contrast over Asian
  continent-Western Pacific analyzing TP heat
  source structure, and seasonal to inter-annual
  variation patterns of the land-sea thermal
  contrast between Asian continent and Western
  Pacific to investigate its impact on East Asian
  circulation anomalies and air-sea interaction
  over Western Pacific.
• Impacts of land-sea thermal contrast over AIPO
  area on the interaction between high and low
  latitude in the stratosphere to investigate the
  relationships among the large-scale land-sea
  thermal contrast, the air-sea interaction over
  AIPO area, and the stratosphere-troposphere
  dynamical and thermal coupling, and to establish
  their relationships with East Asian Climate
  anomalies.

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Supplementary Observation Plans
??1?
??3?
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Schematic observation plan of air-sea interaction
in the AIPO Region
Western Pacific Ocean
Kuroshio
SCS
NEC
Submersible mooring system and cross section
observations over the sea east of Luzon Three
long-term (2-3 years) submersible mooring system
observation buoys and several (3-4) cruise
observational cross sections near 18?N. Data
upper ocean temperature-salinity, flow velocity
and air-sea interface flux, and other key
parameters.
NECC
ITF
SEC
Indian Ocean
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Schematic observation plan of air-sea interaction
in the AIPO Region
Western Pacific Ocean
Kuroshio
SCS
NEC
NECC
ITF
SEC
Indian Ocean
Observations over Karimata Strait and upwelling
region along Java coast One long-term
submersible mooring system. Data
temperature-salinity and flow velocity
observational data.
SJC
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Schematic observation plan of air-sea interaction
in the AIPO Region
Western Pacific Ocean
Kuroshio
SCS
NEC
NECC
ITF
SEC
Indian Ocean
SJC
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Air-sea flux tower at Xi-Sha Island
18?N?????18?N????,?????????????????????(3-4???)
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Some Progresses in Observations

• Water exchange across Karimata Strait and Java
  coastal upwelling
•     A protocol between State Oceanic
  Administration of China and Ministry of Marine
  Affairs and Fisheries the Republic of Indonesia
  in late 2006.
• (1) Nov. 2007, observation equipments will
  be deployed by use of Indonesia investigative
  ships.
• (2) Feb. 2008, a cruise will be initiated.
• (3) Nov. 2008, observation equipments will
  be retrieved and replaced.

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The protocol was signed by SOA of China and MMAF
of Indonesia.
Subsurface mooring at Karimata strait
IOP
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• 2.The first open cruise of AIPO973 in Northern
  SCS
• Sep. 7, 2006, the Research Vessel (R/V)
  Experiment No.3 was started its first open
  research cruise of AIPO973 in the Northern South
  China Sea from Guangzhou.
• Main observations CTD temperature-salinity, GPS
  sounding, air-sea flux, oceanic meteorology, ADCP
  route observation, L-ADCP three dimensional
  oceanic flow,
• on-line observation of surface
• temperature-salinity,
• submersible mooring system,
• etc.

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Schematic observation plan of air-sea-land
interaction in the AIPO Region
Western Pacific Ocean
Kuroshio
AIPO
MAHASRI
CTCZ
PALAU
NEC
SCS
NECC
SEC
Indian Ocean
ITF
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• Thank You!

• http//973aipo.lasg.ac.cn/