[TOC] [LEVEL 1A] [LEVEL 1B] [LEVEL 2] [LEVEL 3 MAP] [LEVEL 3 BINNED] [LEVEL 3 BINNED MAP]
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INTRODUCTION

This document describes the specifications for ADEOS OCTS products. The OCTS products are implemented in SeaWiFS product format Version 2.7 (1995/05/02) and HDF (Hierarchical Data Format) v3.3 format for the compatibility with SeaWiFS products. Version 2.7 (1995/05/02), HDF (Hierarchical Data Format) v3.3.

OCTS products are classified as follows:

Level 1AVisible and near infrared / Thermal infrared (GAC, LAC, RTC)
Level 1BVisible and near infrared / Thermal infrared (LAC)
Level 2Ocean color1 / Ocean color 2 / Vegetation indices / Sea surface temperature (GAC, LAC, RTC)
Level 3 MapVisible and near infrared / Thermal infrared / Radiance/ Chlorophyll-a concentration / Diffuse attenuation coefficient / Vegetation indices / Sea surface temperature (LAC), Pigment concentration / Chlorophyll-a concentration / Diffuse attenuation coefficient / Sea surface temperature (RTC)
Level 3 BinnedOcean color / Vegetation indices / Sea surface temperature
Level 3 Binned MapRadiance / Pigment concentration / Chlorophyll-a concentration / Diffuse attenuation coefficient / V egetation indices / Sea surface temperature

Global Attributes

Global attributes explains types and contents, etc. of products.
The name of V data is HDF tag = VH(V data description), and the data is HDF tag = VS (V data). Therefore, data can be searched and viewed in HDF library by name of V data.

Note that the data types throughout this document are expressed with the followings:
Chcharacter line
Short2 byte integer (signed)
Ushort2 byte integer (unsigned)
Long4 byte integer (signed)
Ulong4 byte integer (unsigned)
Real4 byte real number
Double8 byte real number
Byte1 byte integer

V Group

V group describes either the data extracted from the satellite itself, or processed, or edited data.
The V group name is HDF tag = VG (Vgroup). Each V group is indicated with HDF tag = SDD (Scientific data dimension), and each dimension has a dimension name which is indicated with HDF tag = VG (Vgroup). The content of long_name, valid_range, units, etc. in HDF tag = VH (Vdata description) are indicated by HDF tag = VS (Vdata) . The actual data are described as scientific data of HDF tag = SD (Scientific data). These data sets can be searched and viewed in HDF library by V group names. Here, all the data can be viewed in HDF library without dealing with the contents of data set.

Image Data

Image data is described as scientific data as it is in V group. Therefore, V group name is HDF tag = VG (V group), and the dimension of each V group is indicated with HDF tag = SDD (Scientific data dimension). Image data and palette data are described as scientific data of HDF tag = SD (Scientific data).
[TOC] [LEVEL 1A] [LEVEL 1B] [LEVEL 2] [LEVEL 3 MAP] [LEVEL 3 BINNED] [LEVEL 3 BINNED MAP]
[ADEOS HOME]