1,276 research outputs found
Impact of LANDSAT MSS sensor differences on change detection analysis
Some 512 by 512 pixel subwindows for simultaneously acquired scene pairs obtained by LANDSAT 2,3 and 4 multispectral band scanners were coregistered using LANDSAT 4 scenes as the base to which the other images were registered. Scattergrams between the coregistered scenes (a form of contingency analysis) were used to radiometrically compare data from the various sensors. Mode values were derived and used to visually fit a linear regression. Root mean square errors of the registration varied between .1 and 1.5 pixels. There appear to be no major problem preventing the use of LANDSAT 4 MSS with previous MSS sensors for change detection, provided the noise interference can be removed or minimized. Data normalizations for change detection should be based on the data rather than solely on calibration information. This allows simultaneous normalization of the atmosphere as well as the radiometry
Argentine Wheat Industry: Conference Report
Established and supported under the Australian Government’s Cooperative Research Centre Progra
Innovations from Research in the Food Sector in Europe: Report on a visit to Sweden
Established and supported under the Australian Government’s Cooperative Research Centre Progra
Temperature variation during grain growth as a source of quality inconsistency for the Australian wheat industry
Established and supported under the Australian Government’s Cooperative Research Centre Progra
Bug-Damage Protease and Wheat Quality
Established and supported under the Australian Government’s Cooperative Research Centre Progra
The effect of spatial, spectral and radiometric factors on classification accuracy using thematic mapper data
An experiment of a factorial design was conducted to test the effects on classification accuracy of land cover types due to the improved spatial, spectral and radiometric characteristics of the Thematic Mapper (TM) in comparison to the Multispectral Scanner (MSS). High altitude aircraft scanner data from the Airborne Thematic Mapper instrument was acquired over central California in August, 1983 and used to simulate Thematic Mapper data as well as all combinations of the three characteristics for eight data sets in all. Results for the training sites (field center pixels) showed better classification accuracies for MSS spatial resolution, TM spectral bands and TM radiometry in order of importance
Current International Policies on Plant Breeders’ Rights
Established and supported under the Australian Government’s Cooperative Research Centre Progra
Biological and physical oceanographic observations pertaining to the trawl fishery in a region of persistent coastal upwelling
An upwelling episode in the Point Sal region of the central California coast is examined by using data obtained by a data buoy. The episodes was interrupted by the abrupt abatement of the strong wind which promotes coastal upwelling. The mean hourly upwelling index is calculated to be higher than the 20 year mean monthly value. During 3 days of light wind commercial bottom trawl operations were possible. Shipboard estimates of chlorophyll content in surface waters during trawling show the high concentrations that are indicative of a rich biomass of phytoplankton, a result of the upwelling episode. Satellite imagery shows the extent of the upwelling water to be of the order of 100 km offshore; the result of many upwelling episodes. Shipboard echo sounder data show the presence of various delmersal species and of zooplakton; the latter graze on the phytoplankton in the upper euphotic layers. The fish catch data are recorded according to species for 2 days of trawling, and the catch per trawl hour is recorded
Identification of Variety and Quality Type by Protein Analysis: Recommendation of Methods
Established and supported under the Australian Government’s Cooperative Research Centre Progra
The isolation and properties of formic dehydrogenase from Escherichia coli
Some three decades have passed since the classical work of Keilin initiated the investigation of the class of compounds which he called "cytochromes"
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