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Project Status: Year 1 (now): Gather long-term ARM datasets. PowerPoint Presentation
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Project Status: Year 1 (now): Gather long-term ARM datasets. - PowerPoint PPT Presentation


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Project Title: Long-term Regional Cloud Vertical Distribution over the ARM Sites Principal Investigator: S.A. McFarlane (sally.mcfarlane@pnl.gov). Science Issue: Improve understanding of vertical distribution of cloud properties and radiative heating profiles using high vertical resolution data.

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Project Title:Long-term Regional Cloud Vertical Distribution over the ARM SitesPrincipal Investigator:S.A. McFarlane (sally.mcfarlane@pnl.gov)

Science Issue: Improve understanding of vertical distribution of cloud properties and radiative heating profiles using high vertical resolution data.

Approach: Develop optimal estimation retrieval, which provides error bars on cloud properties. Process multiple years of data at ARM tropical and mid-latitude site.

Satellite-based data: Comparisons to TRMM, CloudSat, SARB products.

Other data: ARM

Study Particulars: ARM data at TWP (1999-2007) and SGP (1997-2007)

  • Project Status:
  • Year 1 (now):
  • Gather long-term ARM datasets.
  • Run current cloud property algorithms and calculate heating rates for initial comparisons to satellite datasets.
  • Begin development of optimal estimation retrieval.
  • Year 2:
  • Continue development of OE retrieval; focus on MJO and comparisons to TRMM and CloudSat
  • Year 3:
  • Run OE retrieval at all sites; add comparisons to SARB product; regime analysis

NEWS linkages: (pull, push, collaborate, external)

Collaborate with T. L’Ecuyer, B. Olsen on comparing radiative/latent heating profiles from ARM/TRMM/CloudSat for MJO timescales

Give radiative heating profiles at Nauru to L’Ecuyer to initiate TRMM comparisons

Discussions with Kato, Weilicki to assess SARB surface/atmosphere radiative products at ARM sites

Linkages to ARM, CloudSat, TRMM

Calculated average radiative heating rate profiles for ~6 months of ARM radar data at Manus (2000) and ~9 months of data at Nauru (1999).