Publication Abstracts

Sayres et al. 2008

Sayres, D.S., J.B. Smith, J.V. Pittman, E.M. Weinstock, J.G. Anderson, G. Heymsfield, L. Li, A.M. Fridlind, and A.S. Ackerman, 2008: Validation and determination of ice water content - radar reflectivity relationships during CRYSTAL-FACE: Flight requirements for future comparisons. J. Geophys. Res., 113, D05208, doi:10.1029/2007JD008847.

In situ measurements of cirrus ice water content (IWC) by the Harvard water vapor and total water instruments during CRYSTAL-FACE are compared with remote sensing data made by the Cloud Radar System (CRS) instrument in order to derive and validate an empirical IWC-radar reflectivity (Ze) relationship. The comparisons show that for measurements of in situ IWC and remotely measured radar reflectivity, collocated within 2 kilometers of each other, a single IWC-Ze relationship can be found that fits the data with an uncertainty of ± 20-30%. A cloud resolving model shows this level of uncertainty to be consistent with sampling errors associated with comparing two measurements that are not collocated. Uncertainties are quantified in the use of in situ data to validate the retrieval algorithms used to derive the IWC of clouds from remote sensing observations, such as radar reflectivity (Ze). Uncertainties are classified into instrumental uncertainties, uncertainties related to sampling errors, and uncertainties in using a single IWC-Ze relationship to describe a cloud.

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BibTeX Citation

@article{sa00200p,
  author={Sayres, D. S. and Smith, J. B. and Pittman, J. V. and Weinstock, E. M. and Anderson, J. G. and Heymsfield, G. and Li, L. and Fridlind, A. M. and Ackerman, A. S.},
  title={Validation and determination of ice water content - radar reflectivity relationships during CRYSTAL-FACE: Flight requirements for future comparisons},
  year={2008},
  journal={J. Geophys. Res.},
  volume={113},
  pages={D05208},
  doi={10.1029%2F2007JD008847},
}

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RIS Citation

TY  - JOUR
ID  - sa00200p
AU  - Sayres, D. S.
AU  - Smith, J. B.
AU  - Pittman, J. V.
AU  - Weinstock, E. M.
AU  - Anderson, J. G.
AU  - Heymsfield, G.
AU  - Li, L.
AU  - Fridlind, A. M.
AU  - Ackerman, A. S.
PY  - 2008
TI  - Validation and determination of ice water content - radar reflectivity relationships during CRYSTAL-FACE: Flight requirements for future comparisons
JA  - J. Geophys. Res.
VL  - 113
SP  - D05208
DO  - 10.1029%2F2007JD008847
ER  -

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