SOLab product specification
From
(→Header) |
|||
| Line 131: | Line 131: | ||
* coordinates: latitude longitude | * coordinates: latitude longitude | ||
|- | |- | ||
| - | | | + | |wind_speed_hf |
| | | | ||
| - | * long_name: wind speed | + | * long_name: wind speed high frequency |
| + | * units: m s-2 | ||
| + | * standard_name: wind speed | ||
| + | * scale_factor: | ||
| + | * add_offset: | ||
| + | * _FillValue: | ||
| + | * coordinates: latitude longitude | ||
| + | |- | ||
| + | |wind_speed_lf | ||
| + | | | ||
| + | * long_name: wind speed low frequency | ||
* units: m s-2 | * units: m s-2 | ||
* standard_name: wind speed | * standard_name: wind speed | ||
| Line 146: | Line 156: | ||
* units: degree of Celcium | * units: degree of Celcium | ||
* standard_name: sea surface temperature | * standard_name: sea surface temperature | ||
| + | * scale_factor: | ||
| + | * add_offset: | ||
| + | * _FillValue: | ||
| + | * coordinates: latitude longitude | ||
| + | |- | ||
| + | |atmospheric_absorption_at_11GHz | ||
| + | | | ||
| + | * long_name: atmospheric absorption at 11GHz | ||
| + | * units: | ||
| + | * standard_name: | ||
* scale_factor: | * scale_factor: | ||
* add_offset: | * add_offset: | ||
Revision as of 10:04, 6 June 2013
Current document describes the format of the new product. Please also refer to the short summary of the CF convention prepared from the original source CF convention.
Contents |
Product design
Given:
lat, lon, time, 6 parameters: Q – water vapor, W – cloud liquid, Vhf – wind speed (high frequency algorithm), Vlf – wind speed (low frequency algorithm), T – temperature, tau - atmospheric absorption at 10.65 GHz. This is for one swath, and we have 14 ascending and 14 descending swaths per day. Time is for a scan, pixels in scan are always 196, number of scans per swath is about 2000 and this varies from swath to swath.
Product ID
SOLAB_AMSRE_L2_NN
<VENDOR_ID>_<INSTRUMENT_ID>_<PRODUCT_LEVEL>_<ALGORITHM>
Filename
There are several patterns for filename convention. For example, all ASCAT files use next convention:
<INSTRUMENT_ID>_<PRODUCT_TYPE>_<PROCESSING_LEVEL>_<SPACECRAFT_ID>_ _<SENSING_START>_<SENSING_END>_<PROCESSING_MODE>_<DISPOSITION_MODE>_<PROCESSING_ TIME>
Therefore, filename format of the developing SOLab product may use the next convention
SOLAB_AMSRE_L2_NN_yyyymmdd_nnn_i_vv.nc
- yyyymmdd- year, month and day
- nnn - orbit number
- i - orbit node: A or D
- vv - version (v1, v2...)
NetCDF structure
Header
| Attribute | Value |
|---|---|
| NC_GLOBAL.title | full product name |
| NC_GLOBAL.title_short_name | product identifier |
| NC_GLOBAL.institution | SOLab/RSHU |
| NC_GLOBAL.creator_url | http://solab.rshu.ru/ |
| NC_GLOBAL.source | satellite AMSR-E |
| NC_GLOBAL.history | N/A |
| NC_GLOBAL.references | html page with product specification, should be on SOLab website |
| NC_GLOBAL.comment | |
| NC_GLOBAL.Conventions | CF-1.6 |
| NC_GLOBAL.pixel_size_on_horizontal | 10km |
| NC_GLOBAL.processing_level | L2 |
| NC_GLOBAL.granule_name | variable |
| NC_GLOBAL.start_date | variable |
| NC_GLOBAL.start_time | variable |
| NC_GLOBAL.stop_date | variable |
| NC_GLOBAL.stop_time | variable |
| NC_GLOBAL.creation_date | variable |
| NC_GLOBAL.creation_time | variable |
Variables
| Variable | Attributes |
|---|---|
| latitude |
|
| longitude |
|
| time |
|
| atmosphere_water_vapor_content |
|
| atmosphere_cloud_liquid_water_content |
|
| wind_speed_hf |
|
| wind_speed_lf |
|
| sea_surface_temperature |
|
| atmospheric_absorption_at_11GHz |
|
