Remote sensing and hydrologic models for performance assessment in Sirsa Irrigation Circle, India

Irrigation management / Irrigation systems / Irrigation canals / Performance evaluation / Remote sensing / GIS / Models / Irrigated farming / Hydrology / Satellite surveys / Irrigation scheduling / Evapotranspiration / India

Comparing estimates of actual evapotranspiration from satellites, hydrological models, and field data: a case study from Western Turkey

Evapotranspiration / Estimation / Remote sensing / Satellite surveys / Field tests / Measurement / Productivity / Crops / Water requirements / Water balance / Irrigation management / River basins / Hydrology / Models / Turkey / Gediz River

News of Brazilian space activities

Remote sensing and meteorological observations of satellites are covered. Development of an oceanographic atlas, prediction of droughts, and results of geological surveys using satellite data are discussed

Performance evaluation of the Bhakra Irrigation System, India, using remote sensing and GIS techniques

Irrigation systems / Irrigation canals / Irrigation scheduling / Performance evaluation / Remote sensing / GIS / Irrigated farming / Satellite surveys / Sustainable agriculture / Productivity / Groundwater / Salinity / Crop yield / Wheat / Surface irrigation / India / Bhakra Irrigation System

Satellite remote sensing for assessment of irrigation system performance: a case study in India

Irrigation management / Irrigated farming / Agricultural production / Irrigation systems / Food production / Rice / Cropping systems / Crop yield / Remote sensing / GIS / Models / Policy / Case studies / Satellite surveys / Performance evaluation / India / Bhadra Project

Aviation's role in earth resources surveys

The role of satellites designed to make a wide variety of earth observations is discussed along with the renewed interest in the use of aircraft as platforms for similar and complementary earth resources surveys. Surveys covering the areas of forestry, agriculture, hydrology, oceanography, geology, and geography are included. Aerials surveys equipped for nonphotographic remote sensing and aircraft flights synchronized with satellite observations to provide correlated data are discussed. Photographs are shown to illustrate preliminary results from several of the test sites

Research project Mauretania: Satellites as development aids

A general discussion is presented of how satellite images and ground surveys are used to define land use. Specifically it deals with the Tagant region in Mauretania, West Africa

Applications of remote sensing data to the Alaskan environment

The ERTS program provides a means to overcome the formidable logistic and economic costs of preparing environmental surveys of the vast and relatively unexplored regions of Alaska. There is an excellent potential in satellite remote sensing to benefit Federal, state, local, and private agencies, by providing a new synoptic data base which is necessary for the preparation of the needed surveys and the search for solutions to environmental management problems. One approach in coupling satellite data to Alaskan problems is a major program initiated by the University of Alaska and funded by NASA's Goddard Space Flight Center. This included 12 projects whose aims were to study the feasibility of applying ERTS data to the disciplines of ecology, agriculture, hydrology, wildlife management, oceanography, geology, glaciology, volcanology, and archaeology

Estimating household production outputs with time use episode data

It is not widely recognised that diary-based surveys of time use contain data not only on ‘input’ time but also on ‘output’ time. The diaries record episodes of time use throughout the day showing activities that can be categorised not only as household production input time, such as preparing a meal, but also household output (or consumption) time such as eating a meal. Harvey and Mukhopadhyay (1996) seem to have been the first to use the methodology of counting output episodes from time use surveys to estimate and value household production outputs. Using episode data from the 1992 Canadian time use survey, they counted the number of meals, the hours of child care and the nights of accommodation. Our paper explores the application of this methodology to the episode data from Australian time use surveys. We extend the outputs to include episodes of transport provided by households. This is in accord with the Eurostat recommendation to include transport as a final output in the preparation of satellite accounts of household production.Household production outputs, time use surveys, episode data, gross household product, satellite accounts of household production, accommodation, meals, child care, clean clothes, transport