Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial Modeling of Heavy Precipitation by Coupling Weather Station
  Recordings and Ensemble Forecasts with Max-Stable Processes   Due to complex physical phenomena, the distribution of heavy rainfall events
is difficult to model spatially. Physically based numerical models can often
provide physically coherent spatial patterns, but may miss some important
precipitation features like heavy rainfall intensities. Measurements at
ground-based weather stations, however, supply adequate rainfall intensities,
but most national weather recording networks are often spatially too sparse to
capture rainfall patterns adequately. To bring the best out of these two
sources of information, climatologists and hydrologists have been seeking
models that can efficiently merge different types of rainfall data. One
inherent difficulty is to capture the appropriate multivariate dependence
structure among rainfall maxima. For this purpose, multivariate extreme value
theory suggests the use of a max-stable process. Such a process can be
represented by a max-linear combination of independent copies of a hidden
stochastic process weighted by a Poisson point process. In practice, the choice
of this hidden process is non-trivial, especially if anisotropy,
non-stationarity and nugget effects are present in the spatial data at hand. By
coupling forecast ensemble data from the French national weather service
(M\'et\'eo-France) with local observations, we construct and compare different
types of data driven max-stable processes that are parsimonious in parameters,
easy to simulate and capable of reproducing nugget effects and spatial
non-stationarities. We also compare our new method with classical approaches
from spatial extreme value theory such as Brown-Resnick processes.

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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: eess