Laurie Gregory — Brookhaven National Laboratory
Richard Wagener — Brookhaven National Laboratory
Lynn L. Ma — Brookhaven National Laboratory
Category
ARM Infrastructure
Description
CSPHOT in cloud mode (zenith pointing) during the MAGIC campaign.
We present highlights from recent ARM Cimel Sunphotometer (CSPHOT) deployments and field campaigns, including a review of recent data availability and instrumentation upgrades. As part of the Boundary Layer Cloud System, the CSPHOTs have recently been deployed at a number of sites and campaigns including TCAP (Cape Cod, USA), MAGIC (California to Hawaii), Oliktok (Alaska, USA), Eastern North Atlantic (Azores), GOAMAZON (Manacapuru, Brazil) and BAECC (Hyytiälä, Finland).
The EPROM on one of the CSPHOT instruments was modified to enable an additional continuous cloud mode for MAGIC and future ship-based deployments. This new mode was tested during the ARM MAGIC field campaign and cloud optical depths were successfully retrieved.
We also review recent examples of research conducted with ARM CSPHOT data. ARM CSPHOTs are part of NASA's AERONET (AErosol RObotic NETwork) which provides stable and well characterized
calibrations. ARM data users often rely on this calibration for instrument intercomparison, satellite retrieval validation, as well as aerosol research, for which the network was intended. One recent example includes the use of the ARM CSPHOT in the deployment the Aerial Facility's "Two-Column Aerosol Project (TCAP): Ground based AOD measurements" campaign, which used the CSPHOT in an intercomparison with the new instrument 4STAR (Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research).
