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Determining Optimal Data Period / Time Span for Model Training

I'm seeking advice on determining the ideal time span for optimizing a weather forecast strategy using historical data without overfitting/underfitting our model. In pursuit of optimal performance and ...
RezAm's user avatar
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1 vote
0 answers
57 views

How does weather forecasting work in production settings?

The way I understand time series models is that you usually have to .fit() them every time you want to make a forecast. This is because there might be trends that were not seen before and so you can't ...
samsamiczy's user avatar
1 vote
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49 views

Fitting a Distribution to Drought Data

I'm trying to fit some distributions to a meteorological drought dataset. I had calculated the drought parameters from the SPI index, where i could define a dataset of the drought durations (in months)...
Lucas's user avatar
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1 vote
1 answer
92 views

How to convert daily total rain, recorded at daily intervals, to daily average rain?

I am seeking some assistance in how to take into account difference in trials periods when calculating average rainfall. I am investigating the effect of rain on plant disease severity. My trials have ...
Ahsk's user avatar
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1 vote
0 answers
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How to find thresholds/lower/upper limit for weather factors for species distribution modelling?

What's the best way to find an estimate of weather factors' thresholds/lower/upper limits for a response variable (in my case disease severity) in studies conducted under field conditions? I have ...
Ahsk's user avatar
  • 425
0 votes
0 answers
51 views

Precipitation to Mean Temperature Relationship

Based on the data below, I am trying to see if there is any relationship between Precipitation and Mean Temperature. Now the <...
Ed_Gravy's user avatar
  • 111
0 votes
0 answers
44 views

What is my best option to evaluate a predictive (or proxy) variable?

I have a list of thunder flashes, and I'm trying to find if a meteorological variable (CAPE) is a good predictable variable (or proxy) for theses flashes. In my thoughts, I want to evaluate this proxy ...
yonafunu's user avatar
1 vote
0 answers
69 views

Extreme Value Analysis of Hurricane wind speeds

As per the theory, an EVA with annual maxima presupposes that the series is complete, i.e. all years have an event. However, hurricanes don't occur every year, and so the hurricane wind speeds in ...
Oliver Amundsen's user avatar
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67 views

How can I interpret singular value decomposition analysis?

I am trying to understand singular value decomposition analysis. I compared two gridded atmospheric data. The Mode 1 has 79.5% squared covariance fraction. Modes 2 and 3 have 3% and 2%, respectively. ...
user2543's user avatar
  • 135
1 vote
0 answers
25 views

How to test whether or not a category (month) affects a continuous distribution (latitude, longitude)?

I am trying to answer a question as to whether or not the month of the year affects the geographical distribution of hurricanes in the Atlantic ocean. I know for example about hurricane season, and ...
rocksNwaves's user avatar
1 vote
0 answers
53 views

Correcting linear regression for change in air temperature over time

Say I collect temperature data over 5 square kilometers over the course of an hour in the evening but I want to analyze the data as though they were collected all at the same time. Naturally the area ...
estebangatillo's user avatar
2 votes
1 answer
550 views

Handling intentionally missing data with tree-based methods

I am using a tree-based method (specifically, random forest) to model the quality of sunsets based on weather measurements. One feature available is the height of the clouds. When there are no clouds ...
Matt Stevans's user avatar
2 votes
0 answers
274 views

Regression and ANOVA for multiple site comparison of weather data?

I have already asked a similar question in the past and received the advice to ask more specific in the 'ANOVA community'. My experimental design looks like this: Temperature is measured at several ...
Timo's user avatar
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0 answers
348 views

Time delay detection in time series

I'm trying to align series of weather data. I have two temperature and pressure sensor which in some time periods has been shifted by some time. Example data with offset equal to -600min I need to ...
Konrad's user avatar
  • 101
1 vote
1 answer
4k views

Drought index calculation

I am calculating a drought index and I have a set of values. The next step in the procedure is to standardize the values to compare across regions and time scales. The paper that establishes this ...
Jed's user avatar
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