Note that: all times are UTC time, not local time A number of tools for working with MODIS HDF data are available for download from this web site. These tools fall into three major categories, which are listed below. Under each main category, more detail on the function of each tool is offered. Granule Locator Tools Locating Level-2 Granules from a Generic Global Map Locating Level-2 Granules from a Level-3 Global Image Locating Level-1B Granules using Text Input Locating Level-1B Granules using Level-1B Metadata Locating Granules using Text Input Spatial and Dataset Subsetting Subsetting Single Resolution HDF Files Subsetting Double Resolution HDF Visualization & Analysis Visualizing HDF Data Extracting and Visualizing Bit Flags from Byte Data Creating the Atm. Standard Color Scale & Bar Creating Browse Images from Level-3 HDF Data Analyzing HDF Data To learn more about and acquire these tools, visit the MODIS-Atmosphere: Important Tables TABLE 1: CHARACTERISTICS OF MODIS CHANNELS USED IN THE AEROSOL RETRIEVAL Band Number Bandwidth (m) Weighted Central Wavelength Resolution (m) (m) 1 0.620 - 0.670 0.646 250 2 0.841 - 0.876 0.855 250 3 0.459 - 0.479 0.466 500 4 0.545 - 0.565 0.553 500 5 1.230 1.250 1.243 500 – 6 1.628 1.652 1.632 500 – 7 2.105 2.155 2.119 500 –
Note that: all times are UTC time, not local time A number of tools for working with MODIS HDF data are available for download from this web site. These tools fall into three major categories, which are listed below. Under each main category, more detail on the function of each tool is offered. Granule Locator Tools Locating Level-2 Granules from a Generic Global Map Locating Level-2 Granules from a Level-3 Global Image Locating Level-1B Granules using Text Input Locating Level-1B Granules using Level-1B Metadata Locating Granules using Text Input Spatial and Dataset Subsetting Subsetting Single Resolution HDF Files Subsetting Double Resolution HDF Visualization & Analysis Visualizing HDF Data Extracting and Visualizing Bit Flags from Byte Data Creating the Atm. Standard Color Scale & Bar Creating Browse Images from Level-3 HDF Data Analyzing HDF Data To learn more about and acquire these tools, visit the MODIS-Atmosphere: Important Tables TABLE 1: CHARACTERISTICS OF MODIS CHANNELS USED IN THE AEROSOL RETRIEVAL Band Number Bandwidth (m) Weighted Central Wavelength (m) Resolution (m) 1 0.620 - 0.670 0.646 250 2 0.841 - 0.876 0.855 250 3 0.459 - 0.479 0.466 500 4 0.545 - 0.565 0.553 500 5 1.230 – 1.250 1.243 500 6 1.628 – 1.652 1.632 500 7 2.105 – 2.155 2.119 500
MOD04_L2Manual.docx.doc.docx