Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Incorporating geostrophic wind information for improved space-time
  short-term wind speed forecasting   Accurate short-term wind speed forecasting is needed for the rapid
development and efficient operation of wind energy resources. This is, however,
a very challenging problem. Although on the large scale, the wind speed is
related to atmospheric pressure, temperature, and other meteorological
variables, no improvement in forecasting accuracy was found by incorporating
air pressure and temperature directly into an advanced space-time statistical
forecasting model, the trigonometric direction diurnal (TDD) model. This paper
proposes to incorporate the geostrophic wind as a new predictor in the TDD
model. The geostrophic wind captures the physical relationship between wind and
pressure through the observed approximate balance between the pressure gradient
force and the Coriolis acceleration due to the Earth's rotation. Based on our
numerical experiments with data from West Texas, our new method produces more
accurate forecasts than does the TDD model using air pressure and temperature
for 1- to 6-hour-ahead forecasts based on three different evaluation criteria.
Furthermore, forecasting errors can be further reduced by using moving average
hourly wind speeds to fit the diurnal pattern. For example, our new method
obtains between 13.9% and 22.4% overall mean absolute error reduction relative
to persistence in 2-hour-ahead forecasts, and between 5.3% and 8.2% reduction
relative to the best previous space-time methods in this setting.

5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat