GEE批量下载ImageCollection且无需呆点run！（二）

老老实实写循环：不啰嗦，直接上代码：
 

// var batch = require('users/fitoprincipe/geetools:batch')
// print('1|wgs_500m_8d:',wgs_500m_8d)
// print('2|wgs_500m_bimonthly:',wgs_500m_bimonthly)
// print('3|:wgs_5km_8d',wgs_5km_8d)
// print('4|wgs_5km_bimonthly:',wgs_5km_bimonthly)
// print('5|wgs_005degree_8d:',wgs_005degree_8d)
// print('6|wgs_005degree_bimonthly:',wgs_005degree_bimonthly)

/*
Adding just the first image in collection
Multiply LAI by 0.1 (scale)
Multiply FPAR by 0.01 (scale)
*/

//Add LAI layers
Map.addLayer(wgs_005degree_8d.first().select('LAI').multiply(0.1),{min:0,max:6,palette: ['#a89247','#5e963b','#75b84f','#8bd162','#f3e24d','#f7eb6b','#fbe789']},'LAI sample 005 degree',false)
Map.addLayer(wgs_5km_8d.first().select('LAI').multiply(0.1),{min:0,max:6,palette: ['#a89247','#5e963b','#75b84f','#8bd162','#f3e24d','#f7eb6b','#fbe789']},'LAI sample 5km',false)
Map.addLayer(wgs_500m_8d.first().select('LAI').multiply(0.1),{min:0,max:6,palette: ['#a89247','#5e963b','#75b84f','#8bd162','#f3e24d','#f7eb6b','#fbe789']},'LAI sample 500m')

//Add FPAR layers
Map.addLayer(wgs_005degree_8d.first().select('FPAR').multiply(0.01),{min:0,max:0.9,palette:['#ff0000','#ff4500','#ff7f00','#ffa500','#ffcf00','#ffff00','#ffff66']},'FPAR sample 005 degree',false)
Map.addLayer(wgs_5km_8d.first().select('FPAR').multiply(0.01),{min:0,max:0.9,palette:['#ff0000','#ff4500','#ff7f00','#ffa500','#ffcf00','#ffff00','#ffff66']},'FPAR sample 5km',false)
Map.addLayer(wgs_500m_8d.first().select('FPAR').multiply(0.01),{min:0,max:0.9,palette:['#ff0000','#ff4500','#ff7f00','#ffa500','#ffcf00','#ffff00','#ffff66']},'FPAR sample 500m')


//batch.Download.ImageCollection.toDrive(collection, folder, options)
//COLLECTION导出
// batch.Download.ImageCollection.toDrive(wgs_005degree_bimonthly,"wgs_005degree_bimonthly", {
// scale: 500,
// type:"unsigned int8" })


 
//批量下载函数
function exportImage(image, fileName) {  
    Export.image.toDrive({  
       image: image,  
       description: fileName,  
       fileNamePrefix: fileName,  //文件命名
       folder: "wgs_005degree_bimonthly",  //保存的文件夹
       scale: 5566,  //分辨率
       //region: roi,  //研究区
       maxPixels: 1e13,  //最大像元素
       crs: "EPSG:4326"  //设置投影
   });  
 } 
 

 
//生成列表，迭代下载
var indexList = wgs_005degree_bimonthly.reduceColumns(ee.Reducer.toList(), ["system:index"]).get("list"); 
print("indexList", indexList);
indexList.evaluate(function(indexs) { 
    for (var i=0; i<indexs.length; i++) {  
        var image = wgs_005degree_bimonthly.filter(ee.Filter.eq("system:index", indexs[i]))
              .first()
              .uint8()  //设置数据类型 

        exportImage(image, indexs[i]);  //保存图像至Google网盘
   }
 });

配合一个插件使用，有奇效：
Google earth engine (GEE) 批量下载插件 非常方便！_google earth engine 全部下载-优快云博客
其他参考链接：
google earth engine(GEE)导出影像集合Collection方法_var batch = require('users/fitoprincipe/geetools:b-优快云博客  循环导出代码参考：
Google Earth Engine（GEE）——导出影像集合数据_gee导出影像-优快云博客
在gee中构建自己的js库（类似于python中的import）
GEE：构建和调用自己的 js 函数库_gee导入函数-优快云博客
batch库参考：
fitoprincipe/geetools-code-editor: A set of tools to use in Google Earth Engine Code Editor (JavaScript) (github.com)Google Earth Engine谷歌地球引擎GEE批量下载ImageCollection遥感影像数据合集的方法-阿里云开发者社区 (aliyun.com)