کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4459138 1621278 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Opening the archive: How free data has enabled the science and monitoring promise of Landsat
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
پیش نمایش صفحه اول مقاله
Opening the archive: How free data has enabled the science and monitoring promise of Landsat
چکیده انگلیسی

Landsat occupies a unique position in the constellation of civilian earth observation satellites, with a long and rich scientific and applications heritage. With nearly 40 years of continuous observation – since launch of the first satellite in 1972 – the Landsat program has benefited from insightful technical specification, robust engineering, and the necessary infrastructure for data archive and dissemination. Chiefly, the spatial and spectral resolutions have proven of broad utility and have remained largely stable over the life of the program. The foresighted acquisition and maintenance of a global image archive has proven to be of unmatched value, providing a window into the past and fueling the monitoring and modeling of global land cover and ecological change. In this paper we discuss the evolution of the Landsat program as a global monitoring mission, highlighting in particular the recent change to an open (free) data policy. The new data policy is revolutionizing the use of Landsat data, spurring the creation of robust standard products and new science and applications approaches. Open data access also promotes increased international collaboration to meet the Earth observing needs of the 21st century.


► Landsat mission status and progress.
► Open access archive, free data, standard products.
► Increased capacity for wide-area applications and dense time series analysis.
► Science and applications enabled.
► Future developments discussed in program context.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Remote Sensing of Environment - Volume 122, July 2012, Pages 2–10
نویسندگان
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