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NSF/NCAR C-130 Spectral (TDDR) Measurements



This dataset contains radiation measurements made during ACE-ASIA on the C-130 aircraft. Archived data consists of two spectral narrowband radiometers (one uplooking and one downlooking). Each TDDR (Total-Direct-Diffuse Radiometer) had a hemispherical field-of-view, and a scanning shadowband was used (only on the uplooking instrument) to regularly block the sun thus allowing determination of the total, direct, and diffuse components of the radiation field. All data is in .cdf format.

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Spatial Type point
Frequency no set schedule
Language English
GCMD Science Keywords Expand keywords

Temporal coverage

Begin datetime 2001-03-31 00:00:00
End datetime 2001-05-04 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 50.00, Minimum (South) Latitude: 10.00
Minimum (West) Longitude: 100.00, Maximum (East) Longitude: 170.00

Primary point of contact information

Francisco P. J. Valero <>

Additional contact information


Example citation following ESIP guidelines:

University of California - San Diego. 2006. NSF/NCAR C-130 Spectral (TDDR) Measurements. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 05 Dec 2022.

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Ancillary information

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