|
|
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.
Back to the top |
Dataset Name
The name of the CoastWatch data set archived at CLASS. There are two different naming formats used for these files:
- CoastWatch-RegionYearDayStart-Time.CoastWatch-SubregionProduct-Type with each qualifier defined below:
| Qualifier |
Details |
| CoastWatch-Region |
One character identifying the CoastWatch Region to which this data applies. Valid character is:
w=West Coast |
| Year |
Last two digits of the year (99 = 1999, 00 = 2000), which identifies the year in which the spacecraft began recording the data set. |
| Day |
Day of the year [001-366], which identifies the Julian day on which the spacecraft began recording the data set. |
| Start-time |
e.g. 13, where "13" denotes 13 hours UTC (to the nearest hour) and represents the time at which spacecraft recording began. |
| CoastWatch-Subregion |
One character identifying sub-regions within the CoastWatch region to which data pertains. Valid sub-region characters are:
c = Central California
e = Northern Baja Mexico
j = Baja Mexico synoptic
y = West Coast synoptic (LAC)
z = West Coast synoptic (GAC)
o = Oregon high resolutionl = Southern California high resolution
w = Washington high resolution
s = Southwest region high resolution
u = Northern California high resolution
n = Northwest region high resolution
b = British Columbia synoptic
f = CalCOFI synoptic
m = Southern Baja Mexico
p = Central Baja Mexico
v = Vancouver Island
x = Full Regional panel (2.5 km)
r = Full Regional panel |
| Product-Type |
Two characters identifying codes for the types of products. Valid character groups are:
b7 = daytime/nighttime split-window non-linear sea-surface-temperature (c4 and c5)
bm = daytime/nighttime multiple sea-surface-temperature algorithm
c1 = AVHRR channel 1 albedo (%)
c2 = AVHRR channel 2 albedo (%)
c4 = AVHRR channel 4 brightness temperature (deg C)
cm = cloud maskd1 = daytime split-window multi-channel sea-surface-temperature (c4 and c5)
d7 = daytime split-window non-linear sea-surface-temperature (c4 and c5)
s3 = nighttime triple-window multi-channel sea-surface-temperature (c3, c4, c5)
s7 = nighttime split-window non-linear sea-surface-temperature (c4 and c5)
s9 = nighttime triple-window non-linear sea-surface-temperature (c3, c4, c5)
sm = nighttime multiple sea-surface-temperature algorithm |
- Year_Day_Start-Time_Spacecraft-Unique-ID_CoastWatch-RegionCoastWatchSubregion_Product-Type. File-Format with each qualifier defined below:
| Qualifier |
Details |
| Year |
Full year with century, e.g., 2005, which identifies the year in which the spacecraft began recording the data set. |
| Day |
Day of the year [001-366], which identifies the Julian day on which the spacecraft began recording the data set. |
| Start-Time |
e.g. 1355, where "1355" denotes 13 hours 55 minutes UTC (to the nearest minute) and represents the time at which spacecraft recording began. |
| Spacecraft-Unique-ID |
n15 = NOAA-15 (NOAA-K)
n16 = NOAA-16 (NOAA-L)
n17 = NOAA-17 (NOAA-M) |
| CoastWatch-Region |
One character identifying CoastWatch Region to which this data applies. Valid characters is:
w=West Coast |
| CoastWatch-Subregion |
One or two characters identifying sub-regions within the CoastWatch region to which the data pertains. Valid sub-region characters are:
c = Central California
e = Northern Baja Mexico
j = Baja Mexico synoptic
y = West Coast synoptic (LAC)
z = West Coast synoptic (GAC)
o = Oregon high resolutionl = Southern California high resolution
w = Washington high resolution
s = Southwest region high resolution
u = Northern California high resolution
n = Northwest region high resolution
b = British Columbia synoptic
f = CalCOFI synoptic
m = Southern Baja Mexico
p = Central Baja Mexico
v = Vancouver Island
x = Full Regional panel (2.5 km)
r = Full Regional panel |
| Product-Type |
Two characters identifying codes for the types of products. Valid character groups are:
b7 = daytime/nighttime split-window non-linear sea-surface-temperature (c4 and c5)
bm = daytime/nighttime multiple sea-surface-temperature algorithm
c1 = AVHRR channel 1 albedo (%)
c2 = AVHRR channel 2 albedo (%)
c4 = AVHRR channel 4 brightness temperature (deg C)
cm = cloud maskd1 = daytime split-window multi-channel sea-surface-temperature (c4 and c5)
d7 = daytime split-window non-linear sea-surface-temperature (c4 and c5)
s3 = nighttime triple-window multi-channel sea-surface-temperature (c3, c4, c5)
s7 = nighttime split-window non-linear sea-surface-temperature (c4 and c5)
s9 = nighttime triple-window non-linear sea-surface-temperature (c3, c4, c5)
sm = nighttime multiple sea-surface-temperature algorithm |
| File-Format |
cwf ( denotes CoastWatch Format) |
Back to the top |
Dataset Size
The size of the file to be delivered to the user in bytes.
Back to the top |
Data Source
Code internal to CLASS for the source of CoastWatch regional input data.
Back to the top |
Inventory ID
A unique numerical ID assigned to the data set for CLASS inventory purposes.
Back to the top |
Product
The datatypes or products available for the CoastWatch West Coast region are:
B7 = daytime/nighttime split-window non-linear sea-surface-temperature (c4 and c5)
BM = daytime/nighttime multiple sea-surface-temperature algorithm
C1 = AVHRR channel 1 albedo (%)
C2 = AVHRR channel 2 albedo (%)
C4 = AVHRR channel 4 brightness temperature (deg C)
CM = cloud mask
D1 = daytime split-window multi-channel sea-surface-temperature (c4 and c5)
D7 = daytime split-window non-linear sea-surface-temperature (c4 and c5)
S3 = nighttime triple-window multi-channel sea-surface-temperature
S7 = nighttime split-window non-linear sea-surface-temperature
S9 = nighttime triple-window non-linear sea-surface-temperature
SM = nighttime multiple sea-surface-temperature algorithm
Back to the top |
Region
Identifies the five character CoastWatch region that the data is mapped to. Valid regions are:
| Five Letter Code |
CoastWatch Region |
| CWWEC |
CoastWatch Region West Coast |
Back to the top |
Satellite
The satellite that acquired the CoastWatch data.
| N15 |
NK |
NOAA-15 |
| N16 |
NL |
NOAA-16 |
| N17 |
NM |
NOAA-17 |
| N18 |
NN |
NOAA-18 |
Back to the top |
Subregion
Valid CoastWatch subregions are:
WC = Central California
WE = Northern Baja Mexico
WJ = Baja Mexico synoptic
WY = West Coast synoptic (LAC)
WZ = West Coast synoptic (GAC)
WO = Oregon high resolution
WL = Southern California high resolution
WW = Washington high resolution
WS = Southwest region high resolution
WU = Northern California high resolution
WN = Northwest region high resolution
WB = British Columbia synoptic
WF = CalCOFI synoptic
WM = Southern Baja Mexico
WP = Central Baja Mexico
WV = Vancouver Island
WX = Full Regional panel (2.5 km)
WR = Full Regional Panel
Back to the top |
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.
Back to the top |
Time
The UCT 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.
Back to the top |
UTC
Coordinated Universal Time (UTC) is the international time standard. It is the current term for what was referred to as Greenwich Meridian Time (GMT). Zero (0) hours UTC is midnight in Greenwich England, which lies on the zero longitudinal meridian. Universal time is based on a 24 hour clock, therefore, afternoon hours such as 4 pm UTC are expressed as 16:00 UTC (sixteen hours, zero minutes).
Back to the top |
