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Projects > D - F > ECLIPS

Preferred term

ECLIPS  

Definition

  • Cloud Lidar Pilot Study (ECLIPS)Objectives: 1.Demonstrate feasibility of obtaining a long-term climatology of cloud base and optical depth. 2.Improve methods of satellite cloud retrieval. 3.Obtain a data set of cloud optical properties complementary to the ISCCP data set. The data would be handled through a designated data center to the NCDS NASA Climate Data Center. Contact Information: LIDAR RESEARCHER: C. Martin R. Platt, Stuart A. Young, Richard T. Austin RESEARCH ASSOCIATES: Graeme R. Patterson and Stephen C. Marsden MAILING ADDRESS: CSIRO Division of Atmospheric Research Private Mail Bag No. 1 Aspendale 3195 Victoria AUSTRALIA TELEPHONE NUMBER: (613) 9239 4665, (613) 9239 4589 FAX OR TELEX NUMBER: (613) 9239 4444 ELECTRONIC MAIL ADDRESS: say&#64larry.dar.csiro.au, cmp&#64larry.dar.csiro.au Technical Information: LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.): Aspendale, Australia (-38.0, 145.1) SITE ELEVATION: 2.1 m (7 ft) MSL MEASUREMENT TECHNIQUE: Incoherent backscatter PARAMETER(S) OR CONSTITUENT(S) MEASURED: Clouds, Plume dispersion, stratospheric aerosols MEASUREMENT RANGE: 0.1 - 40 km VERTICAL RESOLUTION: 0.75m - 15 m (clouds); 60 m (stratosphere) FREQ. OF MEASUREMENT (TYPICALLY): Periodic, intensive studies of clouds and plumes; monthly 1991-1993, 1997 - (stratospheric aerosols) MEASUREMENT TIMES (TYPICALLY): Day (clouds & plumes); night (clouds & stratosphere) LASER TYPE AND WAVELENGTH: Nd:YAG, 1064, 532, 355 nm PULSE REPETITION: 10 pps LASER ENERGY/PULSE: 0.35 J (1064), 0.15 J (532), 0.05 J (355) PLATFORM: Ground-based, mobile caravan RECEIVER SIZE AND CONFIGURATION: 35 cm (14 inch) modified Cassegrain RECEIVER FIELD-OF-VIEW: 2 - 12 mrad RECEIVER BANDWIDTH: 1 nm DETECTORS USED: 2 x EMI 9816BM (S20 photocathode) for 532, 355nm, RCA C30955E + AM312A amp. for 1064nm SIGNAL PROCESSING: Analog ANALOG-T0-DIGITAL CONVERTER: 1) Sony-Tektronix RTD710A, 10-bit, dual-channel digitizer with 256kb buffer memory, 2) National VP5740A, 8-bit, dual-channel, digital storage oscilloscope. COMPUTER: Pentium + 386-PC networked via OS/2-Warp Connect (en)

Broader concept

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https://gcmd.earthdata.nasa.gov/kms/concept/e23b4757-38f3-4be1-8d70-035dacb782f6

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