Coastal zone management

A panel of federal and state representatives concerned with coastal zone affairs discussed their problems in this area. In addition, several demonstrations of the application of remote sensing technology to coastal zone management were described. These demonstrations were performed by several agencies in a variety of geographical areas

Marine resources and ocean surveys

Application of ERTS-1 remotely sensed multispectral imagery to marine resources and oceanic observations and surveys - Conferenc

LANDSAT-4 and LANDSAT-5 Multispectral Scanner Coherent Noise Characterization and Removal

A technique is described for characterizing the coherent noise found in LANDSAT-4 and LANDSAT-5 MSS data and a companion technique for filtering out the coherent noise. The techniques are demonstrated on LANDSAT-4 and LANDSAT-5 MSS data sets, and explanations of the noise pattern are suggested in Appendix C. A cookbook procedure for characterizing and filtering the coherent noise using special NASA/Goddard IDIMS functions is included. Also presented are analysis results from the retrofitted LANDSAT-5 MSS sensor, which shows that the coherent noise has been substantially reduced

Letter from John L. Tilton

Letter of recommendation for A. G. Reid

The Extension of the Wisconsin Drift Southwest from Des Moines

At the last meeting of the Academy I called attention to an extension of the Wisconsin drift south, past Valley Junction into the region which was generally understood to be within the area of Kansan drift. It was with a view to extending observations further south in that direction than was possible in the time previously at my disposal that trips were made in 1914 extending the area examined east to the Army Post, west to the ravines in the southwest portion of Polk county, and, as far south as Norwalk, Cummings and Orillia in Warren county and west to Madison county

The First Reported Petrified American Lepidostrobus is from Warren County, Iowa

One day in the summer of 1904 a broken Lepidostrobus petrified nicely by iron pyrites was sent to me by Mr. Samuel Spear, then residing four miles south of Indianola. Each year the specimen was exhibited to the class in Geology when Carboniferous plants were illustrated and the explanation given that it was a remarkably rare and choice specimen of a cone, the like of which I had never seen in any museum; but the real value of the specimen was not fully appreciated till I handed the specimen to Professor Stuart Weller at The University of Chicago in December, 1910. I had taken it with me that day, intending to carry it over to Professor Coulter for further information with reference to it. On seeing it, Professor Weller exclaimed that it was the very kind of a specimen that Professor Coulter had been seeking for years, no petrified Lepidostrobus having ever been reported in the United States. On Professor Coulter\u27s request to section the specimen and describe it he was given full permission to do whatever was necessary to secure from it all the information possible. As the result of that work upon it we now have the splendid description and illustrations published by Professor Coulter and Dr. Land in the Botanical Gazette, Vol. 51, June, 1911

A Pleistocene Section from Des Moines South to Allerton

1. A valuable series of exposures is now to be found along the, railroad from Des Moines to Allerton. 2. A detailed description of some of the outcrops. 3. General observations and relations

A Problem in Municipal Waterworks for a Small City

The problems of a municipal water supply, not only for fire protection but also for domestic use, are important ones confronting numerous towns in Iowa. The attempt to solve those problems at Indianola presents features of general as well as local value