用户堆栈艾尔-地球科学交流江南体育网页版江南电子竞技平台 最近30从www.hoelymoley.com 2023 - 07 - 09 - t12:04:39z //www.hoelymoley.com/feeds/user/12714 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/16183 1 如何提取lat-lon MOD10C2 hdf在matlab数据吗? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 06 - t09:53:53z 2019 - 02 - 06 - t15:53:34z < p >我们可以导入和阅读所有给定的乐队/参数MOD10C2,纬度和经度不是作为单独的乐队,而嵌入其他的乐队。我们如何从MOD10C2 hdf matlab中的数据。< / p >

Similar question found here for python

 //www.hoelymoley.com/q/16139 1 如何算MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02年- 02 - t09:05:25z 2019 - 02 - 06 - t15:53:14z < p >我在MOD10C2积雪(8天),当我夹MODIS积雪对不同区域的海拔高度对.i.e总趋势的结果。高海拔低显示积雪和低海拔显示更高的积雪。我用matlab inpolygon函数(inpolygon (yq xq,十五,青年志愿))我无法找出犯错误。< / p >

First of all I imported the data in this way

hdfvars = {'Eight_Day_CMG_Snow_Cover', 'Eight_Day_CMG_Clear_Index',... 'Eight_Day_CMG_Cloud_Obscured', 'Snow_Spatial_QA'}; projectdir = 'E:\test\hdf test'; dinfo = dir( fullfile(projectdir, '*.hdf') ); num_files = length(dinfo); filenames = fullfile( projectdir, {dinfo.name} ); Eight_Day_CMG_Snow_Cover = cell(num_files, 1); Eight_Day_CMG_Clear_Index = cell(num_files, 1); Eight_Day_CMG_Cloud_Obscured = cell(num_files, 1); Snow_Spatial_QA = cell(num_files, 1); for K = 1 : num_files this_file = filenames{K}; Eight_Day_CMG_Snow_Cover{K} = hdfread(this_file, hdfvars{1}); Eight_Day_CMG_Clear_Index{K} = hdfread(this_file, hdfvars{2}); Eight_Day_CMG_Cloud_Obscured{K} = hdfread(this_file, hdfvars{3}); Snow_Spatial_QA{K} = hdfread(this_file, hdfvars{4}); end

Then reshaped data in this way

B2 = zeros(3600,7200,24); for i = 1:3600 for j = 1:7200 B2(i,j,1:24) = reshape(Eight_Day_CMG_Snow_Cover{i,j},[1 3 2]); end end

Then generate lat lon and subset the area of interest

lon = -180:0.05:180; lat = -90:0.05:90; subsetqa = Eight_Day_CMG_Snow_Cover(2001:2817,4801:5741,:);

then attempted to extract with elevation polygon, I tried both [monthly] and [8days] fractional snow cover data, elevation polygon are extracted from SRTM DEM. I attempted to use matlab in this way

shapefile = 'shapefile.shp' ; S = shaperead(shapefile) ; N = length(S) ; for i = 1:N plot(S(i).X,S(i).Y) hold on end %% lon = load('testlon.mat') ; lon = lon.testlon ; lat = load('testlat.mat') ; lat = lat.testlat ; [X,Y] = meshgrid(lon,lat) ; data = load('testarray.mat') ; data = data.testarray ; [nx,ny,d] = size(data) ; %%Extract data iwant = cell(d,N) ; for i =1:d A = data(:,:,i) ; for j = 1:N idx = inpolygon(X(:),Y(:),S(i).X,S(i).Y) ; iwant{i,j} = A(idx) ; end

Then output iwant converted into matrix in this way

test = cell2mat(cellfun(@transpose,iwant,'uniform',0));

NOTE: this picture is showing polygon of only one elevation zone and we have six different elevation zones.

enter image description here

 //www.hoelymoley.com/q/15761 1 如何计算季风爆发? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 12 - 12 - t10:01:38z 2018 - 12 - 12 - t10:01:38z < p >我读了很多文章和每个人都有自己的特定的视图,我们如何计算季风爆发(例如印度夏季风爆发)在简单的方法吗?任何一个能让我理解简单的方法吗?这将是快乐还提到如果需要最合适的数据集。请注意;我感兴趣的年际和季节迁移的南亚季风爆发。< / p > < p >提前谢谢< / p > //www.hoelymoley.com/q/15517 2 这软件是最容易用来创建这样的情节吗?(关闭) 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 11 - 07 - t03:53:37z 2018 - 11 - 07 - t23:51:28z < p >似乎有许多选择一个问题,但每个国家都有不同的方法和并发症,这是令人困惑和耗时的初学者,使用哪一个。我想做一个图像:< / p > < p > < a href = " https://i.stack.imgur.com/q3eqK.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/q3eqK.jpg " alt = "在这里输入图像描述" > < / > < / p > < p >每个解决方案/环境/分析平台似乎特别的好处,但也可能丢失,每个需要一段时间学习和推测其可行性和适应性。我担心我将参与一个软件,最终更困难或只在某些有限的方面有用我的研究/调查/研究。一些著名的平台使用matlab在地球科学,R, IDL, N江南体育网页版CL网格、鳕鱼、Fortran, ArcGIS、晶洞,全球mapper, eradas e.t.c。< / p >

Among all of these which one is more user friendly, easier to learn, and more efficient for making a plot similar to the one attached?

 //www.hoelymoley.com/q/14407 2 什么是最好的方法来检测的空间和时间模式降水在山区吗? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 06 - 12 - t01:38:24z 2018 - 08 - 11 - t13:01:11z < p >研究区域响了从500年到8000年m地面和海拔分成4类,5000以上,4 - 5000 3 - 4000,低于3000米地面。这个地区有不同的气候区域/降水区域的数量和模式。什么是最好的方法来检测这些地区降水的时空模式与月度卫星数据? < / p > //www.hoelymoley.com/q/14140 0 如何计算积雪面积从卫星数据更好的和有效的方式吗? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 05 - 14 - t08:11:18z 2018 - 05 - 15 - t06:53:57z < p >卫星检索包含云层,偏见外星人。c的主要挑战准备的数据进一步分析。毕竟,我们如何能够有效地计算积雪及其时间变化在任何语言从卫星数据基础平台?< / p > //www.hoelymoley.com/q/14060 3 有什么更好的方法来解决卫星积雪数据的缺失和消极的细胞 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 05 - 05 - t07:49:23z 2018 - 05 - 07 - t00:01:21z < p >每日和每月MODIS积雪L3数据下载,下一个处理缺失和消极的细胞。使用不同类型的插值填补缺失的细胞。我想填补缺失的细胞与周围的意思是3值但很难,因为在某些情况下的大部分数据丢失?我知道面具男细胞通过使用(nanmean)命令和长期的同一地区也可以使用。< / p >

Permafrost Presence/Absence Mapping of the Qinghai-Tibet Plateau Based on Multi-Source Remote Sensing Data but I am looking any possible way beside these.

What is the best way beside above mentioned two to deal the missing and negative cells of MODIS snow cover data?

Note; I am using matlab environment for this purpose.

 //www.hoelymoley.com/questions/16183/how-to-extract-lat-lon-from-mod10c2-hdf-data-in-matlab/16184?cid=33234 # 16184 评论的艾尔如何提取lat-lon MOD10C2 hdf在matlab数据吗? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 07 - t01:45:35z 2019 - 02 - 07 - t01:45:35z 有办法整像素定位中心旁边的/平均值和角落? //www.hoelymoley.com/questions/16183/how-to-extract-lat-lon-from-mod10c2-hdf-data-in-matlab?cid=33233 评论的艾尔如何提取lat-lon MOD10C2 hdf在matlab数据吗? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 07 - t01:42:11z 2019 - 02 - 07 - t01:42:11z 最初我只是生成纬度lat = 90:0.05:90朗在一个简单的方式;和朗= 180:0.05:180;然后在数据子集导致错误(可能)。 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones/16170?cid=33215 # 16170 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 06 - t08:29:18z 2019 - 02 - 06 - t08:29:18z @Dear Camilo Rada,这对我来说很好。谢谢你的时间。最后一件事,如何从这些数据中提取的纬度和经度。让说,我想要的一个子集MOD10C2从10到30 N和40到60 E,所以我应该有三个.mat文件。积雪e(1),(2)纬度和(3)经度进行进一步分析。 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones/16170?cid=33169 # 16170 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02年- 05 - t02:07:10z 2019 - 02年- 05 - t02:07:10z After importing all four bands of MOD10C2, I Concatenate 23 files (23 files of 8days snow cover) of only 'Eight_Day_CMG_Snow_Cover' on 3rd dimension in order to speed up the work. //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33133 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t09:48:13z 2019 - 02 - 04 - t09:48:13z 让我们< a href = " https://chat.stackexchange.com/rooms/89227/discussion-between-irfan-and-camilo-rada " >继续这个讨论聊天< / >。 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33132 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t09:47:20z 2019 - 02 - 04 - t09:47:20z 更新,请看看。< a href = " http://www.mediafire.com/folder/688zf2kkmu5mu/snowcover " rel =“nofollow”noreferrer >mediafire.com/folder/688zf2kkmu5mu/snowcover < / > //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33127 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t04:30:25z 2019 - 02 - 04 - t04:30:25z < a href = " http://www.mediafire.com/folder/qo8b5eqd0d3nu/Snowcover " rel =“nofollow”noreferrer >mediafire.com/folder/qo8b5eqd0d3nu/Snowcover < / >这里有三个文件8天积雪(HDF),每月的积雪(Netcdf)和SRTM DEM。请找到它 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33124 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t03:44:53z 2019 - 02 - 04 - t03:44:53z 首先我把积雪数据(数据= testarray)然后试图提取特定高度的数据区一个接一个,而策划现在已经覆盖了的形象。HDF和数控的积雪数据格式。 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33122 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t03:31:04z 2019 - 02 - 04 - t03:31:04z 更新我的问题。请看看 //www.hoelymoley.com/questions/16139/how-to-figure-the-modis-snow-cover-against-different-elevation-zones?cid=33118 iran发表评论如何图MODIS积雪对不同海拔区域? 伊尔凡 //www.hoelymoley.com/users/12714 2019 - 02 - 04 - t03:12:02z 2019 - 02 - 04 - t03:12:02z 亲爱的卡米洛·拉扎,问题是编辑和添加了所有要求的事情。寻找你的宝贵的建议和帮助 //www.hoelymoley.com/questions/15761/how-to-calculate-monsoon-onset?cid=31901 由艾尔评论如何计算季风爆发? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 12 - 15 - t01:30:57z 2018 - 12 - 15 - t01:30:57z 真正的,叫做国际年变化 //www.hoelymoley.com/questions/15761/how-to-calculate-monsoon-onset?cid=31883 由艾尔评论如何计算季风爆发? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 12 - 13 - t08:15:35z 2018 - 12 - 13 - t08:15:35z Gansub,有一些想法,让我试着计算一下 //www.hoelymoley.com/questions/15761/how-to-calculate-monsoon-onset?cid=31863 由艾尔评论如何计算季风爆发? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 12 - 12 - t10:52:51z 2018 - 12 - 12 - t10:52:51z 我只是想知道历史签名e。g 1995 - 2017 //www.hoelymoley.com/questions/15761/how-to-calculate-monsoon-onset?cid=31861 由艾尔评论如何计算季风爆发? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 12 - 12 - t10:14:04z 2018 - 12 - 12 - t10:14:04z 它变化三个星期在极端情况下,它在整个地区带来很大的影响。 //www.hoelymoley.com/questions/15517/which-software-is-easiest-to-use-to-create-plots-like-these?cid=31357 艾尔发表评论的软件是容易使用它来创建这样的情节吗? 伊尔凡 //www.hoelymoley.com/users/12714 2018 - 11 - 08 - t01:53:37z 2018 - 11 - 08 - t01:53:37z 危险风暴,谢谢你的回应。我可以知道的办法直接和别人聊天吗?
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