Updated 1 October 2007

Project Overview Paper:

Stoelinga, M. T., P. V. Hobbs, C. V. Mass, J. D. Locatelli, B. A. Colle, R. A. Houze, A. L. Rangno, N. A. Bond, B. F. Smull, R. M. Rasmussen, G. Thompson, and B. R. Colman, 2003: Improvement of Microphysical Parameterization through Observational Verification Experiment (IMPROVE).   Bull. Amer. Meteor. Soc., 84, 1807–1826.

The first ten research papers resulting from IMPROVE field studies were reported in a Special IMPROVE Section of the October 2005 issue of the Journal of the Atmospheric Sciences.

In addition, the following papers related to IMPROVE have recently been published or submitted:

Yuter, S. E., D. E. Kingsmill, L. B. Nance, and M. Lφffler-Mang, 2006: Observations of precipitation size and fall speed characteristics within coexisting rain and wet snow.   J. Appl. Meteor. Climat. , 45, 1450–1464.

Garvert, M. F., B. F. Smull, and C. F. Mass, 2007: Multiscale mountain waves influencing a major orographic precipitation event.   J. Atmos. Sci. , 64, 711–737.

T. Hashino and G. J. Tripoli, 2007: The Spectral Ice Habit Prediction System (SHIPS). Part I: Model description and simulation of the vapor deposition process.   J. Atmos. Sci. , 64, 2210–2237.

M. T. Stoelinga, J. D. Locatelli, and C. P. Woods, 2007: The occurrence of "irregular" ice particles in stratiform clouds.   J. Atmos. Sci. , 64, 2740–2750.

K. Ikeda, R. M. Rasmussen, W. D. Hall, and G. Thompson, 2007: Observations of freezing drizzle in extratropical cyclonic storms during IMPROVE-2.   J. Atmos. Sci. , 64, 3016–3043.

Rotunno, R., and R. A. Houze, Jr., 2007: Lessons on orographic precipitation from the Mesoscale Alpine Programme.   Quart. J. Roy. Meteor. Soc., 133, 811–830.

C. P. Woods, M. T. Stoelinga, and J. D. Locatelli, 2007: The IMPROVE-1 storm of 1–2 February 2001. Part III: Sensitivity of a mesoscale model simulation to the representation of snow particle types and testing of a bulk microphysical scheme with snow habit prediction.   J. Atmos. Sci. , in press.

Medina, S., E. Sukovich, and R. A. Houze, Jr., 2007: Vertical structures of precipitation in cyclones crossing the Oregon Cascades.   Mon. Wea. Rev., in press.

C. P. Woods, M. T. Stoelinga, and J. D. Locatelli, 2007: Size spectra of snow particles measured in wintertime precipitation in the Pacific Northwest.   J. Atmos. Sci. , in press.

B. A. Colle, 2007: Two-dimensional idealized simulations of the impact of multiple windward ridges on orographic precipitation.   J. Atmos. Sci. , in press.

C. P. Woods, J. D. Locatelli, and M. T. Stoelinga, 2007: The IMPROVE-1 storm of 1–2 February 2001. Part IV: Precipitation enhancement across the melting layer.   J. Atmos. Sci. , in press.

Milbrandt, J. A., M. K. Yau, J. Mailhot, and S. Belair, 2008: Simulation of an orographic precipitation event during IMPROVE-2. Part I: Evaluation of the control run using a triple-moment bulk microphysics scheme.   Mon. Wea. Rev. , in review.

Milbrandt, J. A., M. K. Yau, J. Mailhot, and S. Belair, 2008: Simulation of an orographic precipitation event during IMPROVE-2. Part II: Sensitivity to the number of moments in the bulk microphysics scheme.   Mon. Wea. Rev. , in review.