Here are some examples of previously-asked questions about
manipulating data in the Data Library. Most of these examples begin
their explanation after the desired data has been found in the Data Library.
If you are having trouble finding the data for which you are looking, then
you may want to refer to the
"Locating Data"
section of the Data Library Tutorial and then return to these examples for further
explanation.
Selecting Data
Q&A: How
do I select data from a specific time period or location?
Q&A: I
am using daily data. How do I create datasets of a single day and of a
range of days?
Q&A: How
do I find all stations that have record maximum and minimum temperatures
within a specific range?
Q&A: I
am having trouble finding data for stations that I know exist in a dataset.
I have searched for both their names and WMO IDs. Can you help?
Q&A: I
am using deep sea core data. How do I select data from cores with
approximately the age?
Q&A: How do I select data that is within a particular
range of values?
Q&A: Can I select data from only the most recent time
increment?
Arithmetic and Statistical Manipulation
Q&A: I
am using monthly data. How do I create data representing annual totals?
Q&A: How
do I plot the difference between data from two different times within a
defined region?
Q&A: How
do I find the average of two data fields?
Q&A: How
do I correlate two different variables in a dataset?
Q&A: I want to
do a series of arithmetic operations on my data. Can you help me?
Spatial and Temporal Averaging
Q&A: I
am using gridded data. How do I create a spatial average?
Q&A: I
am using monthly data. How do I create a monthly average over several years?
Q&A: I
am using monthly data. How do I create seasonal averages?
Q&A: How
do I calculate a seasonal average from certain composite years and then
subtract it from that of another set of years?
Q&A: How
do I create an annual composite of monthly data?
Viewing Data
Q&A: How
do I overlay one piece of data onto another in the Data Viewer?
Q&A: Is it
possible to change axis labels in the data viewer?
Q&A: How
do I make animated figures?
Misc
Q&A: How do I use the
Data Library to access data on another DODS Server?
Q&A: Does
the Data Library allow me to replace missing data with a constant value?
Q&A: What
does the yearly-anomalies command actually calculate?