This dataset contains maps of the location and temporal distribution of surface water from 1984 to 2015 and provides statistics on the extent and change of those water surfaces. For more information see the associated journal article: High-resolution mapping of global surface water and its long-term changes (Nature, 2016) and the online Data Users Guide.
These data were generated using 3,066,102 scenes from Landsat 5, 7, and 8 acquired between 16 March 1984 and 10 October 2015. Each pixel was individually classified into water / non-water using an expert system and the results were collated into a monthly history for the entire time period and two epochs (1984-1999, 2000-2015) for change detection.
The Monthly Recurrence collection contains 12 images: monthly measures of the seasonality of water based on the occurrence values detected in that month over all years.
該資料集包含1984年至2015年地表水的位置和時間分布圖,并提供這些水面的範圍和變化的統計資料。更多資訊見相關期刊文章。全球地表水及其長期變化的高分辨率地圖(自然,2016)和線上資料使用者指南。
這些資料是使用1984年3月16日至2015年10月10日期間擷取的Landsat 5、7和8的3,066,102個場景生成的。使用專家系統将每個像素單獨分類為水/非水,并将結果整理為整個時間段的月度曆史和兩個紀元(1984-1999年,2000-2015年),用于變化檢測。
月度複現集包含12張圖檔:根據曆年在該月檢測到的發生值,每月衡量水的季節性。
Dataset Availability
1984-03-16T00:00:00 - 2015-10-18T00:00:00
Dataset Provider
EC JRC / Google
Collection Snippet
ee.ImageCollection("JRC/GSW1_0/MonthlyRecurrence")
Resolution
30 meters
Bands Table
Name | Description | Min | Max | Units |
---|---|---|---|---|
monthly_recurrence | The recurrence value expressed as a percentage for this month. | 100 | % | |
has_observations | A flag to indicate if the month has observations. | |||
has_observations Bitmask |
|
影像屬性:
Name | Type | Description |
---|---|---|
month | Double | Month |
資料使用:
All data here is produced under the Copernicus Programme and is provided free of charge, without restriction of use. For the full license information see the Copernicus Regulation.
Publications, models, and data products that make use of these datasets must include proper acknowledgement, including citing datasets and the journal article as in the following citation.
If you are using the data as a layer in a published map, please include the following attribution text: 'Source: EC JRC/Google'
引用:
Jean-Francois Pekel, Andrew Cottam, Noel Gorelick, Alan S. Belward, High-resolution mapping of global surface water and its long-term changes. Nature 540, 418-422 (2016). (doi:10.1038/nature20584)
代碼:
var dataset = ee.ImageCollection('JRC/GSW1_0/MonthlyRecurrence').first();
var monthlyRecurrence = dataset.select('monthly_recurrence');
var monthlyRecurrenceVis = {
min: 0.0,
max: 100.0,
palette: ['ffffff', 'ffbbbb', '0000ff'],
};
Map.setCenter(-51.482, -0.835, 9);
Map.addLayer(monthlyRecurrence, monthlyRecurrenceVis, 'Monthly Recurrence');