Free Download of MnS data

1. Download The l1b data from the modem1b data: http://ladsweb.nascom.nasa.gov/daTa/search.htmlOpen the webpage and select the desired data source type. Note: mod03 is used to perform geometric correction on 1 KM, qkm, and hkm data. Do not forget to download. The date type is month, day, or year.
Hour: minute: in seconds, the time displayed on the webpage is UTC time, which is converted to Beijing Time: UTC time = Beijing Time-8 hours. Therefore, to obtain the data for January 1, January 16, the range is: 01/15/2003/16 ~ At, 01/16, select "latitude/longtitude" in the 'spatial Selection' option, and select the image range in the form of longitude and latitude. Click 'search' to find the desired data: Check the required data, click 'order files now ', enter the email address for receiving the information, and click 'order' to start ordering the data. (If you want to search data for multiple days, you can select 'add
Files to shopping cart. Location Information of the subscribed data: Click 'daTa-> track orders can view the status of all subscribed data. If 'state' shows 'avalable', the download starts. Use ftp to download software such as ftpcute. First, create a site: ftp: ladsweb.nascom.nasa.gov.

Username: Anonymous

Password: rainaleaf@163.com (mailbox for applying data yourself)

Click 'connection '. All data is displayed in the box on the right. Find the folder where your data is located and drag it to the box on the left to download the data. OK!

2. The modis09 ~ of the modis09 product https://wist.echo.nasa.gov/api//... 307/u517021/u517029 or known download file name ~ 17 data can be downloaded from ftp:/e4ftl01u.ecs.nasa.gov Tarra and stored in molt.
Aqua data is stored in Mola. The above search site (https://wist.echo.nasa.gov) If you can find the data but can not download the situation, you can also directly find in FTP to download. In this way, you can view the data coverage area. Suppose: mod11a1. a2008288.h28v06.005.2008290030125. HDF
From: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD11A1.005/2008.10.14/ to find the h26v05, it is from the folder in the selected download can be. The FTP download tool is generally used.

3. Commonly Used modemware: Commonly Used modemchecking software also includes:

A. modemexplorer (recommended) Its: http://hdfeos.net/software/HDFExplorer/ or: http://www.space-research.org/, which allows you to conveniently view the modem' metadata or information in HDF format.

B. The modemswath tool (recommended) can also be used by the modemswath tool provided by the NASA website to perform geometric correction (: http://edcimswww.cr.usgs.gov/pub/imswelcome/) on 1B data in HDF format ), the software uses mod03 data to correct images, which is fast and easy to use. It is easier to use than georeference that uses ENVI directly. (Image stitching is also possible)

C. MRT (recommended) can be used to re-project the download of the HDF format of the MOF products such as: http://edcimswww.cr.usgs.gov/pub/imswelcome ).

Product Classification Based on MnS The Product Classification System of the MNS consists of five levels of data: Level 0, level 1, level 2, level 3, and level 4. Level 0 data: raw data directly received by the satellite ground station, unprocessed, including all data information, is level 0 data. Level 1 data: the processed and fully-Resolved instrument data is reconstructed, the data time registration is performed, and the Level 1 data is calculated and added to level 0 data using the auxiliary data annotation. Level 2 data: Level 2 data is developed based on Level 1 data and has the same spatial resolution and covers the same geographical region. Level 3 data: Level 3 data is a variable expressed in a unified time-space grid, which usually has a certain degree of integrity and consistency. At the Level 3 level, scientific research can be concentrated, such as fixed-point time series, observation equations and general models from a single technology. Level 4 Data: The result data obtained from the analysis model and comprehensive analysis of Level 3 data is Level 4 data. 4. Product Category Standard data product type Based on different content, the standard data products of the MNS are classified into level 0 and Level 1 data products. Level 1 data products are divided into Level 2-4 data products after Level 1 B data products, including: there are 44 types of standard data products, including land standard data products, atmospheric standard data products, and marine standard data products. They are: Mod01 That is, modis1a data product. Mod02 That is, modis1b data product. Mod03 That is, the geographical location file of the Land map data. Mod04 Standard atmospheric level 2 and level 3 data products with the content of aerosol products, 1 km of Lambert projection spatial resolution, 30 seconds of geographic coordinates, and 2 levels of daily data products, data is merged into three levels of data products every day and every month. Mod05 Precipitation. Level 2 atmospheric products. Mod06 Apsara stack 2 and 3 standard data products. The content is cloud products. The Lambert projection space resolution is 1 km. The geographical coordinates are 30 seconds. The daily data is Level 2 data products, data is merged into three levels of data products every day and every month. Mod07 Standard data products of level 2 and level 3 of the atmosphere. The content is atmospheric profile data. The Lambert projection space resolution is 1 km, and the geographical coordinate is 30 seconds. The daily data is a Level 2 data product, data is merged into three levels of data products every day and every month. Mod08 Level 3 standard data products for the atmosphere, with a 1-kilometer spatial resolution. Data is synthesized every day, every day, and every month. Mod09 Standard Data Product of level 2 land, with the content of surface reflection, spatial resolution of 250 m, daily data during the day. Mod10 Standard data products of Grade 2 and Grade 3 on land, with the content of snow covered, daily data of Grade 2, spatial resolution of 500, and data of Grade 3 on the hour and month, spatial Resolution: 500 meters. Mod11 Standard data products of Grade 2 and Grade 3 land use the following content: surface temperature and radiation rate, Lambert projection, 1 km spatial resolution, 30 seconds geographic coordinate, and 2 levels of daily data, data is merged into three levels every day and every month. Mod12 Standard Land-Level 3 data products, covering land cover/land cover changes, 1 km, 1/4 O, seasonal, biological and earth chemical cycles, land cover changes, and level 3 data products. Mod13 Standard Land-Level 3 data products with a spatial resolution of 250 m, including Grid normalized vegetation index and enhanced vegetation index (SVD/EVI. Mod14 Standard data products of level 2 land are classified into heat abnormality-fire and biomass combustion, with a spatial resolution of 1 km. The location of the fire, the fire level, and the ratio of Dark fire to combustion are determined. Mod15 Standard data products of Grade 3 on land, covering leaf area index and photosynthetic effective radiation, with a spatial resolution of 1 km. The product is a daily, rapid, and monthly synthetic product. Mod16 Standard data products of Grade 4 on land, with a spatial resolution of 1 km and a synthesis product of Grade 10 and month. Mod17 Standard data products of Grade 4 on land, covering vegetation products, NPP, spatial resolution of 250 meters, 1 km, frequency of ten-day and month. Mod18 Marine Level 2 and Level 3 standard data products, with the content of standard surface radiation, global ocean surface, spatial resolution of 1 km, daily, ten-day, monthly, and marine chlorophyll. Mod19 Marine Level 2 and Level 3 standard data products, with the content of pigment concentration, global surface, spatial resolution of 1 km, daily, ten-day, and monthly data. Mod20 Standard data products for Levels 2 and 3 of the ocean, including chlorophyll fluorescence, global ocean surface, spatial resolution 1 km, chlorophyll level greater than 2.0 mg/m3, daily, ten-day, and monthly data. Mod21 Marine Level 2 standard data products with chlorophyll-pigment concentration, spatial resolution of 1 km, daily, ten-day, and monthly data. Mod22 Standard data products of Levels 2 and 3 of the ocean, covering photosynthetic radiation (PAR), global ocean surface, 1 km, daily, ten-day, and monthly data. Mod23 Marine Level 3 standard data product with suspended solids concentration. Mod24 Marine Level 3 standard data product with the content of organic matter concentration. Mod25 Marine Level 2 and Level 3 standard data products, with the content of ball stone concentration, global ocean surface, spatial resolution of 1 km, 20 km, daily, ten-day, and monthly data. Mod26 Marine Level 3 standard data product, content of which is marine water attenuation coefficient. Mod27 Apsara stack 2 and Apsara stack 3 standard data products provide marine primary productivity, global ocean surface, and spatial resolution of 1 km, with daily, ten-day, and monthly data. Mod28 Marine Level 2 and Level 3 standard data products, covering sea surface temperature, global ocean surface, spatial resolution of 1 km, daily, weekly/day and night, energy and water balance, and climate change models. Mod29 Marine Level 2 standard data products, covering sea ice, ocean, 1 km resolution, day and day data. Mod30 (Not fixed) Mod31 Standard data products of Grade 2 and Grade 3 of the ocean, including algae red protein concentration, 1 km resolution, daily, ten-day, and monthly data. Mod32 Marine Level 2 standard data products, with content for processing frameworks and matched databases, 1 km resolution, day, day, And month data, used for marine chlorophyll and Marine Productivity Computing. Mod33 Level 3 standard data products on land, covering snow, with a spatial resolution of 500 meters, daily, ten-day, and monthly data. Mod34 (Not fixed) Mod35 Level 2 standard data products of the atmosphere, the content is a cloud mask, the spatial resolution is 250 m and 1 km, daily data. Mod36 Standard data products of Marine Level 3, with a total absorption coefficient, a spatial resolution of 1 km, daily, ten-day, and monthly data. Mod37 Apsara stack 2 and Apsara stack 3 standard data products, featuring marine aerosol properties, spatial resolution of 1 km, daily, ten-day, and monthly data. Mod38 (Not fixed) Mod39 Marine Level 2 and Level 3 standard data products with pure water, spatial resolution of 1 km, day, day, And month data. Mod40 Standard data products of three levels on land, with the content of a grid heat exception, spatial resolution of 1 km, daily, ten-day, and monthly data. Mod41 (Not fixed) Mod42 Marine Level 3 standard data products, covering sea ice, 1 km spatial resolution, day, day, And month data. Mod43 Standard data products of Grade 3 land, including surface reflection, BRDF/Albedo parameters, 1 km spatial resolution, daily, ten-day, and monthly data. Mod44 Level 3 standard data products on land, covering vegetation transition, 250 m, quarterly and annually, determining the occurrence and type of vegetation coverage transition   From: http://hi.baidu.com/gisriver/blog/item/be773719341f200c35fa41f1.html