python modis数据拼接_python读取modis数据

本期记录只上干活，废话不多说，主要是后面与HEG配合使用，实现一系列研究与反演操作。

python环境：Python 3.5.2 +Pycharm

模块包：pyhdf

安装方法(命令行输入)：

pip install pyhdf

一、获取hdf数据集：

from pyhdf.SD import SD

HDF_FILR_URL = “E:\Persona_project\Py-Program\RS\modis\MOD021KM.A2018092.0300.061.2018092134259.hdf”

file = SD(HDF_FILR_URL)

info=file.info()#数据集个数

print(info)

ds_dict=file.datasets()#所有数据集名称

for idx, sds in enumerate(ds_dict.keys()):

print(idx, sds)

二、获取每个数据集数据：

# -*- coding:utf-8 -*-

# author:

from pyhdf.SD import SD

HDF_FILR_URL = “E:\Persona_project\Py-Program\RS\modis\MOD021KM.A2018092.0300.061.2018092134259.hdf”

file = SD(HDF_FILR_URL)

EV_1KM_Emissive = file.select(‘EV_1KM_RefSB’).get()

print(EV_1KM_Emissive.shape)

三、获取每个数据集属性：

# -*- coding:utf-8 -*-

# author:

from pyhdf.SD import SD

HDF_FILR_URL = “E:\Persona_project\Py-Program\RS\modis\MOD021KM.A2018092.0300.061.2018092134259.hdf”

file = SD(HDF_FILR_URL)

EV_1KM_Emissive = file.select(‘EV_1KM_RefSB’)

attributes = EV_1KM_Emissive.attributes()#获取属性

radiance_scales = attributes[‘radiance_scales’]#辐亮度缩放尺度

radiance_offsets = attributes[‘radiance_offsets’]##辐亮度偏移值

reflectance_scales = attributes[‘reflectance_scales’]#反射率缩放尺度

reflectance_offsets = attributes[‘reflectance_scales’]#反射率偏移值

print(radiance_scales)

print(radiance_offsets)

print(reflectance_scales)

print(reflectance_offsets)