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Aqua Monitor Surface Water Gain (1985-2016)

បោះពុម្ពផ្សាយដោយ៖ Open Development Mekong

The Deltares Aqua Monitor is an open tool that detects land and water conversions globally, during the last 30 years at 30m resolution. Results of the Aqua Monitor only show compound impacts of natural and human change or variability but does not look into water and sediment budgets which would be required to determine the causes of these changes. Static maps have been exported from the tool which displays accumulative land and water changes between 1985-2016. For further detail on the methodology see Nature Climate Change paper: http://nature.com/nclimate/journal/v6/n9/full/nclimate3111.html.

ធនធានទិន្នន័យ (3)

KML
ទាញយក  

Surface Water Gain 300m
 
HTML
ទាញយក  

Surface Water Gain 300m
 
GEOTIFF
ទាញយក  

Surface Water Gain 300m
 

មើល​ធនធានទិន្នន័យ - Surface Water Gain 300m

Additional Info

Field Value
ចំណាត់ថ្នាក់ប្រធានបទនៃសំណុំទិន្នន័យ
  • Environmental impact assessments
  • Water resources
ភាសា
  • ភាសាអង់គ្លេស
កំហិតនៃការចូល និងប្រើប្រាស់ There are no access use and constraints to the data it is open and the code is freely available from this repository: https://github.com/gena/aqua-monitor. All attributions however to the research paper and Aqua Monitor should site the original authors.
កាលបរិច្ឆេទយោងនៃសំណុំទិន្នន័យ 1 កញ្ញា 2016
ចន្លោះកាលបរិច្ឆេទបញ្ចប់ 23 កញ្ញា 2016
ចន្លោះកាលបរិច្ឆេទបញ្ចប់ 23 កញ្ញា 2016
ឈ្មោះភូមិសាស្ត្រ
  • កម្ពុជា
  • វៀតណាម
  • ឡាវ
  • ថៃ
  • មីយ៉ាន់ម៉ា
ភាពទៀងទាត់ The Aqua Monitor uses Landsat images at 30 m resolution to establishes water-land and land-water occurrence on-the-fly by estimating the MNDWI spectral index values and performing trend analysis for these MNDWI values over both user-selected periods. The exported assess provided are at a 300 m resolution. Accuracy is dependent on available images.
ភាពទៀងទាត់តាមហេតុផល There are no known issues with logical consistency.
ការចប់សព្វគ្រប់ Preliminary analysis using the Aqua Monitor yields only static accumulated changes over the select periods and does not represent standing water. Calculations are only collected during years where images are available.
ជំហាននៃដំណើរ The Aqua Monitor was used to extract 300m assets from Google Earth Engine, clipped to the Greater Mekong Region and area calculations made. The source code is available at: https://code.earthengine.google.com/8c9befdc51507fc8c81c2760eb16e87b Further details of the development of the tool can be found in the Aqua Monitor Supplementary Information document.
Lineage Donchyts, Gennadii; Baart, Fedor; Winsemius, Hessel; Gorelick, Noel; Kwadijk, Jaap; van de Giesen, Nick. "Earth's surface water change over the past 30 years". Nature Climate Change. 2016/09, volume 6, issue 9, page 810-813. Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. SN - 1758-678X http://www.nature.com/nclimate/journal/v6/n9/full/nclimate3111.html
ភាគីទទួលខុសត្រូវ Gennadii Donchyts Deltares, Boussinesqweg 1, 2629 HV, Delft, The Netherlands Email: gennadii.donchyts@deltares.nl
ព័ត៌មានជាអំនះអំនាងនៃទិន្នន័យមេ EWMI-ODI, No. 43 Street 208, Sanfkat Beng Taing, Khan Daun Penh, Phnom Oenh, Cambodia. Tel: (855) 12-302-967 www.opendevelopmentmekong.net
អាជ្ញាប័ណ្ណ unspecified
សិទ្ធិ Yes
កំណែ 1.0
កាលបរិច្ឆេទផ្ទុកឡើង កញ្ញា 23, 2016, 11:45 (UTC)
កាលបរិច្ឆេទកែប្រែ កញ្ញា 30, 2016, 08:54 (UTC)