Revision of the historical Cape Grim atmospheric CO 2 record and - - PowerPoint PPT Presentation

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revision of the historical cape grim atmospheric co 2
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Revision of the historical Cape Grim atmospheric CO 2 record and - - PowerPoint PPT Presentation

Feb 01, 2024 130 likes •332 views

Revision of the historical Cape Grim atmospheric CO 2 record and expansion of the Australian regional WMO/GAW network GMAC, Boulder, USA May 2013 www.cawcr.gov.au Marcel van der Schoot , P.B. Krummel, A.R. Stavert, L.P. Steele, R.J. Francey,

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The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

Revision of the historical Cape Grim atmospheric CO2 record and expansion of the Australian regional WMO/GAW network

Marcel van der Schoot, P.B. Krummel, A.R. Stavert, L.P. Steele, R.J. Francey, D.A. Spencer, R.L. Langenfelds, P.J. Fraser, and Z. Loh www.cawcr.gov.au GMAC, Boulder, USA May 2013

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Outline of today’s talk

  • 1. Cape Grim in-situ CO2 record revision
  • 2. CSIRO atmospheric network expansion -
  • Southern Ocean high precision CO2 network
  • Australia’s future research vessel (RV Investigator)
  • Southeast Asian – Australian tropical regional GHG
  • bservation network

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

Long (

  • E)

Lat (

  • S)

40 60 80 100 120 140 160 20 40 60

0.125 0.25 0.5 1 2

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Cape Grim LoFlo2A in-situ CO2 (2004-2013)

Cape Grim in-situ CO2 record revision

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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Cape Grim LoFlo2A in-situ CO2 (2004-2013)

Calibration residual history (2004 – 2013)

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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Cape Grim LoFlo2A in-situ CO2 (2004-2013)

Reference gas in-situ calibrations

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

  • 0.05
  • 0.04
  • 0.03
  • 0.02
  • 0.01

0.01 0.02 0.03 0.04 0.05 50 100 150 200 250 ∆CO2 ppm (from mean) Individual REF tank - days from 1st calibration

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Southern Ocean CO2 network Southern Ocean CO2 sink project

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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The Macquarie Island CO2 record

Southern Ocean CO2 sink project

Stavert et al. 2013

Macquarie Island

  • Removing local sources and sinks
  • Examining long range transport
  • Comparisons to other Southern Ocean

locations

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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Intercomparisons

Southern Ocean CO2 sink project

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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RV Investigator – a new era in marine and atmospheric research for Australian scientists

  • FUTURE RESEARCH VESSEL PROJECT

Future Research Vessel Project

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Location of atmospheric chemistry labs and position of specialist containers.

Presentation title | Presenter name | Page 10

2 Containers Air chemistry lab Aerosol mast Aerosol lab

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Air chemistry lab, containers and booms

Presentation title | Presenter name | Page 11

Sampling booms Air chemistry lab Position for 2 containers for specialised atmospheric sampling

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RV Investigator

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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Tropical Southeast Asia-Australian regional network

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

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Gunn Point Pilot Tropical Atmospheric Research Station

  • Latitude :

12.2oS

  • Longitude :

131.0oE

  • Elevation:

25 m

  • Road Access
  • 1-2 hours from Darwin (70 km road)
  • 4WD
  • 35 km unsealed road subject to wet season flooding
  • Site History
  • Ex-prison farm (closed 1990)
  • Radar Site - Bureau of Meteorology lease since 2004
  • Atmospheric Radiation Measurement Site (ARM funded US Department of

Energy)

  • Power
  • Town power (generally reliable but does fail in storms)
  • Backup generator for essential applications (~3 days)
  • Communications
  • Land line and mobile next G reception
  • CSIRO. 3.1 Southern Ocean Carbon Sink
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Thank you

The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

Thank you

www.cawcr.gov.au

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Gunn Point – atmospheric measurement program

  • Current (May 2013)
  • In-situ CO2 & CH4 (CRDS)
  • In-situ 13CO2/12CO2 (CRDS)*
  • Flask CO2, CH4,13CO2/12CO2, N2O, CO, H2
  • Radon (ANSTO)
  • Short-lived halocarbons (CHBr3/CH2Br2/CHCl3/C2Cl4/CH2CCl3/CCl4..): GC-ECD (N. Harris,
  • U. Cambridge, UK) (May 2013)
  • O3 (UV spectrometry) / CO (NDIR) /NO/NOX (chemiluminescence)
  • Aetholometer and nephelometer
  • Proposed measurement program
  • In-situ CO/N2O (LGR) (Sep 2013)
  • AWS (June 2013)
  • PM2.5/PM10
  • Aerosols+VOCs (dry season campaign completed June 2010)
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The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

Air mass origin maps Gunn Point (courtesy Alistair Manning UK Met Office )

Dry season Wet season

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The Centre for Australian Weather and Climate Research

A partnership between CSIRO and the Bureau of Meteorology

Gunn Point (NT) – New tropical Australian monitoring site

  • Wet / Dry season air masses giving continental coverage with Cape

Grim station, clean Indian Ocean air & SE Asian air masses

  • Based at existing research radar site at Gunn Point (BoM)
  • Unique opportunity to combine existing physical atmospheric research

facilities currently in Darwin (BoM / US DoE Atmospheric Radiation Measurement program) with chemical atmospheric measurements

  • Regular field campaigns (Mctex, TRMM, Dawex, TWPICE...)
  • TCCON network site at Darwin (FTS) for satellite validation (GOSAT,

SCHIAMACHY) since September 2005 (University of Wollongong/Caltech)

  • Extensive tropical ecosystem (Savanah) research (CSIRO, Charles

Darwin University)