Understanding Variability to Anticipate Change

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Introduction to Working with Data Quality Levels
The data availability and quality levels menu gives users feedback on what data will appear on a plot and allows selection of quality levels for verified data (PD2 or data processed at level 2). You will be presented with a menu for each plot that looks like the menu below.

Data processing levels: raw (PD0), preliminary (PD1), or verified (PD2).
Data quality levels: one of five data quality levels assigned to data ranging from good at level 1 to bad at level 5 (QL1.. QL5).

For more information on processing and quality levels click here

For other ways to check availability click here

Quality levels, How?

To turn on/off different quality levels for a particular offering:

Select quality levels you wish to display on plot
Unselect quality levels you wish not to display on plot

By default QL1 to QL3 are selected

Menu, How?

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

Colors reflect the best available data
	No data		Raw		Preliminary		Verified

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NOTICE: data from different instruments is subjected to interpolation (Click for more)

To obtain data with its original time stamps plot data from a single instrument and use the download option. If a plot contains data from multiple instruments the data with longer time stamps will be interpolated to the data with the shortest time stamps (Click to hide)

Data format:

Comma delimited

MATLAB data

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1. Sources
>> 2. Options
>> 3. Quality

Available assets

Category: Value:

Display only:

Source:

Current deployments only

MLLW adjusted pressure

Quality selection on last step

T. mod:

Variable:

Colored by:

Range
Limits
Layout

X Axis

Max:

Min:

Auto:

Y Axis

Max:

Min:

Auto:

Color Axis

Max:

Min:

Auto:

Square

Wide

Time range

1 day from End date
7 days from End date
15 days from End date
30 days from End date
custom

Start date

- :

End date

- :

Select quality levels (Help)

Caution: chlorophyll units from different sensors/stations may not be directly comparable. Click here for more information.

Offering

Processing

Quality Levels

X Axis

PD0/PD1/PD2

QL1/QL2/QL3/QL4/QL5

Y Axis

PD0/PD1/PD2

QL1/QL2/QL3/QL4/QL5 Xpand

Colored by

PD0/PD1/PD2

QL1/QL2/QL3/QL4/QL5

For a description of Data Processing and Quality Levels click here

PD0 (processed data level 0, Raw data)
PD1 (processed data level 1, Preliminary data)
PD2 (processed data level 2, Verified data)

QL1 (Good)
QL2
QL3
QL4
QL5 (Bad)

Check Xpand to use a different color for each PD2 quality level

For more information about data quality and processing levels click here

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The Center for Coastal Margin Observation & Prediction (CMOP) is a National Science Foundation Science and Technology Center. CMOP is creating a new paradigm for conducting coastal-margin science. It is anticipatory rather than reactive, and is based on the emerging power of structured integrations of information, methods and people. We call these integrations “collaboratories.” The center represents a large multi-institutional partnership. © 2012 Center for Coastal Margin Observation & Prediction

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Introduction to Working with Data Quality Levels

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