Microwave Humidity Sounder Level 1b Format - MHS |
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Data Usage Guidance/Restrictions
The operational data for this datatype is available to all registered CLASS users. Pre-operational data may be restricted to authorized users. To become an authorized user, send a request to the CLASS Help Desk.
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Dataset Name
The name of the Level 1B data set archived at CLASS. The name has the following format: Processing-Center.Data-Type.Spacecraft-Unique-ID.Year-Day.Start-Time.Stop-Time.Processing-Block-ID.Source with each qualifier defined below:
| Qualifier |
Details |
| Processing-Center |
Three characters identifying where the data was created. Recognized character groups are:
CMS = Centre de Meteorologie Spatiale/France
DSS=Dundee Satellite Receiving Station - Dundee, Scotland, UK
NSS = NOAA/NESDIS - Suitland, Maryland, USA
UKM = United Kingdom Meteorological Office - Bracknell, England, UK |
| Data-Type |
Four characters identifying the data type and transmission method. Recognized character groups are:
MHSX= MHS data set derived from AIP
MHSS= MHS data set derived from stored AIP |
| Spacecraft-Unique-ID |
NN = NOAA-18 (NOAA-N) |
| Year-Day |
e.g. D05150, where "D" identifies this group as a Julian day delimiter, "05" identifies the year in which the spacecraft began recording the data and "150" identifies the Julian day on which the spacecraft began recording the data. |
| Start-Time |
e.g. S1355, where "S" identifies this group as a start time delimiter. "1355" denotes 13 hours 55 minutes UTC (to the nearest minute) and represents the time at which spacecraft recording began. |
| Stop-Time |
e.g. E1456, where "E" identifies this group as an end time delimiter. "1456" denotes 14 hours 56 minutes UTC (to the nearest minute) and denotes the time of spacecraft recording of the last usable data in the data set. |
| Procesing-Block-ID |
e.g. B0016465, where "B" identifies this group as a processing block ID delimiter. "0016465" is a seven digit number identifying the spacecraft revolution (orbit) in which recording of this data set began and the revolution in which the recording of the data set ended (the first five digits identifying the beginning revolution and the last two being the two least significant digits of the ending revolution). |
| Source |
Two characters identifying data acquisition source. Valid character groups are:
DU = Dundee, Scotland, UK
GC = Fairbanks, Alaska, USA (formerly Gilmore Creek)
HO = Honolulu, Hawaii, USA
MO = Monterey, California, USA
SO = Satellite Operations Control Center, Suitland, Maryland, USA
WE = Western Europe, Lannion, France
WI = Wallops Island, Virginia, USA |
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Datatype
The data types available for MHS are:
| Datatype Name Code |
Description |
| MHS |
Microwave Humidity Sounder Level 1b Format |
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End Orbit
The number of the orbit (revolution) in which the satellite was traveling at the end of the coverage of the given dataset.
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End Time
The GMT date and time corresponding to the end of the coverage of the given dataset. Format is yyyy-mm-dd hh:mm:ss.fff where fff is the fraction of a second in milliseconds.
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Inventory ID
A unique numerical ID assigned to the data set for CLASS inventory purposes.
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Node
The ascending node refers to that portion of the orbit during which the satellite is heading northward. Descending refers to the southbound portion.
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Processing Mode
Not Applicable for the MHS data family.
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Receiving Station
The ground station to which data was transmitted for the given data set.
| Two Characters at end of 1B data set name |
Receiving Station |
| DU |
Dundee, Scotland, UK |
| GC |
Fairbanks, Alaska, USA (formerly Gilmore Creek) |
| HO |
Honolulu, Hawaii, USA |
| MO |
Monterey, California, USA |
| SO |
Satellite Operations Control Center, Suitland, Maryland, USA (SOCC) |
| WE |
Western Europe, Lannion, France |
| WI |
Wallops Island, Virginia, USA |
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Resolution
Not Applicable for the MHS data family.
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Satellite
The satellite that acquired the AVHRR data.
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Size
The size in bytes of the file to be delivered to the user.
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Spatial
Refers to the geographic area of interest to the user. This section of the search page allows the user to define the geographic area of interest.
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Start Orbit
The number of the orbit (revolution) in which the satellite was traveling at the beginning of the coverage of the given dataset.
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Start Time
The GMT date and time corresponding to the beginning of the coverage of the given dataset. Format is yyyy-mm-dd hh:mm:ss.fff where fff is the fraction of a second in milliseconds.
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Temporal
Refers to the time span of interest to the user. This section of the search page allows the user to define the range of dates/times of interest.
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