Laboratory and Numerical Model Studies of Ice Formation in  Clouds
{'Code': '06020102', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'AGS', 'LongName': 'Div Atmospheric & Geospace Sciences'}}
{'SignBlockName': 'Robert W. Taylor', 'PO_EMAI': None, 'PO_PHON': None}
This work addresses three aspects of ice formation in                      clouds: the effects of silver iodide ice nucleating aerosols;                   measurements of natural ice nuclei; and simulations of ice                      formation in cirrus clouds.  Two complementary approaches will be               used:  laboratory experiments in CSU's cloud chambers, and                      simulations with numerical cloud models.  The experiments will                  simulate ice forming processes in a variety of well-defined cloud               conditions, equivalent to atmospheric clouds.  Measuring natural                ice nuclei is a new application of the facilities; this work will               establish the utility of a large expansion chamber to make                      measurements of natural ice nuclei.  Ice nucleation processes in                cirrus clouds will be simulated for both homogeneous and                        heterogeneous freezing processes.                                                    The laboratory experiments will be used to derive functional               quantitative descriptions of ice nucleation.  The laboratory                    results will be compare with those of the models, and revisions                 to the models will be made to improve their predictive                          capabilities.  Several case studies of winter orographic cloud                  seeding will be simulated with a dynamical microphysical model                  using the new nucleation formulations. //
[{'FirstName': 'David', 'LastName': 'Rogers', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David C Rogers', 'EmailAddress': 'dcrogers@lamar.colostate.edu', 'NSF_ID': '000416794', 'StartDate': '01/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Paul', 'LastName': 'DeMott', 'PI_MID_INIT': 'J', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Paul J DeMott', 'EmailAddress': 'Paul.Demott@colostate.edu', 'NSF_ID': '000174995', 'StartDate': '01/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'Colorado State University', 'CityName': 'FORT COLLINS', 'ZipCode': '805212807', 'PhoneNumber': '9704916355', 'StreetAddress': '601 S HOWES ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Colorado', 'StateCode': 'CO', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CO02', 'ORG_UEI_NUM': 'LT9CXX8L19G1', 'ORG_LGL_BUS_NAME': 'COLORADO STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '152200', 'Text': 'PHYSICAL METEOROLOGY'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8813345.xml'}