Questions tagged [statistics]

The tag has no usage guidance.

10 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
20
votes
0answers
266 views

How are Mauna Loa $\ce{CO2}$ monthly trends computed?

The problem I am trying to figure out how $\ce{CO2}$ concentration trends are computed in the data provided by the Earth Systems Research Laboratory Mauna Loa Observatory. The data contains monthly ...
15
votes
0answers
214 views

How to compute the earthquake occurrence probability under ETAS model

I have fitted an ETAS model (unmarked) with an independent exponential magnitude distribution to a set of earthquake data. However, I do not know how to calculate the probability of the earthquake ...
5
votes
0answers
123 views

regression map vs correlation map

What is the exact difference between regression and correlation maps? I know that they are often used in climate science but which is the difference in the information they provide? Here an example I ...
4
votes
0answers
75 views

How to do frequency analysis of an index when some years have zero value?

I want to do frequency analysis of drought severity, but unlike precipitation data here I have few zero values in some of the years. how to do this? Here is the sample data: ...
3
votes
0answers
33 views

statistical methods for analysis of stability tailored for multiple short time series

I am a graduate student of Ecology working on a species diversity problem and am not much educated in time series methods. i have searched 3 general time-series books and could not find a clue on how ...
3
votes
0answers
67 views

Is the probability distribution of earthquakes memoryless?

What I want to know is more specific than the title: If a city sits on major fault lines (let's say Tehran), and has a history of severe earthquakes (greater than 7 magnitude) once every 150 years in ...
2
votes
0answers
61 views

Good practices and pitfalls when fitting models $y = f(weather)$ and predicting $\hat{y} = \hat{f}(GCM)$

I've got a phenomenon of interest, $y$. It is determined in large part by the weather. Naturally, one becomes interested in what climate change may do to $y$, so one fits a model of the form $y = f(\...
2
votes
0answers
54 views

Determining '< x' values as numeric

I do have a large dataset containing nearly a decade of particulate matter measurements. At the lower precision limit of the measuring instrument, there are values given like ...
1
vote
0answers
45 views

What statistics do we have regarding the probability of window breakage by wind speed?

One thing that has stood out from our past hurricanes in central Florida and also from watching those around the country is the real large propensity for folks to board up windows. But it has also ...
1
vote
0answers
26 views

Can anyone give share reference for quadrat size in vegetation

In sampling vegetation, what is the size of a quadrat needed? And I need a reference too plz. If the type matters, pick any vegetation all I need is an example of crops and the quadrat size. With ...