Generation of Simulated Daily Precipitation and Air and Soil Temperatures, January 2000

This paper describes a maximum likelihood method using historical weather data to estimate a parametric model of daily precipitation and maximum and minimum air temperatures. Parameter estimates are reported for Brookings, SD, and Boone, IA, to illustrate the procedure. The use of this parametric model to generate stochastic time series of daily weather is then summarized. A soil temperature model is described that determines daily average, maximum, and minimum soil temperatures based on air temperatures and precipitation, following a lagged process due to soil heat storage and other factors.

Field Experiments of Current Concrete Pavement Surface Characteristics Practices: Iowa Data Collection and Analysis, December 2005

One of the most important issues in portland cement concrete pavement research today is surface characteristics. The issue is one of balancing surface texture construction with the need for durability, skid resistance, and noise reduction. The National Concrete Pavement Technology Center at Iowa State University, in conjunction with the Federal Highway Administration, American Concrete Pavement Association, International Grinding and Grooving Association, Iowa Highway Research Board, and other states, have entered into a three-part National Surface Characteristics Program to resolve the balancing problem. As a portion of Part 2, this report documents the construction of 18 separate pavement surfaces for use in the first level of testing for the national project. It identifies the testing to be done and the limitations observed in the construction process. The results of the actual tests will be included in the subsequent national study reports.

Iowa County Precipitation Estimates, 2008

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

County Precipitation Estimates, January 2008

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

Iowa County Precipitation Estimates, Departure from Normal 2008

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

Iowa County Precipitation Estimates, Departure from Normal 2008

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

Iowa Preliminary County Precipitation Estimates, July 2009

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

Iowa Preliminary County Precipitation Estimates, July 2009

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau.

County Precipitation Estimates, October 2001

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, November 2001

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, December 2001

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, January 2001

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, February 2002

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, March 2002

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.

County Precipitation Estimates, March 2002

Report produced by the The Department of Agriculture and Land Stewardship, Climatology Bureau. The Iowa Crops and Weather report released by the USDA National Agricultural Statistical Service.