A suntracker at La Réunion Island (20.8°S; 55.5°E) …...A suntracker at La Réunion Island for...
Transcript of A suntracker at La Réunion Island (20.8°S; 55.5°E) …...A suntracker at La Réunion Island for...
A suntracker at La Réunion Island for
monitoring surface solar radiation under
tropical maritime climate conditions:
towards a new BSRN site?
B. MOREL, P. JEANTY, A. HEINTZ, M. BESSAFI
C. BROUAT, Y. HOARAU, L. ODDOZ
14th BSRN Workshop, 26-29 April 2016, Canberra, Australia
A Research Unit of the University of Reunion Island
• Permanent Staff: 12,5 12 (Pr. + Ass. Pr.) + 2.5 (Admin. + Eng. + Tech. Ass.)
• Non Permanent Staff (2015): 32 18 (PhD Students) + 2 (Post-Doc) + 12 (Admin. + Eng. + Tech. Ass.)
Introduction
2
Introduction
3
60 km
Piton des Neiges
3070 m
Piton de La
Fournaise
2632 m
60
km
REUNION
MAURITIUS
GOB
DAA
COC
HAN
SYO
MADAGASCAR
Introduction
4
53%
12%
15%
18%
2%
Fossil fuel
Biomass
Hydropower
Solar PV
Wind power
Electricity distribution grid over Reunion
Energy mix
Smart management of solar energy
Topic 1 – Solar resource variability
Topic 2 – Energy conversion and storage
Topic 3 – Energy optimization
Introduction
WSN
radiative assessment fuel cell hybrid system
5
Introduction
6
Long-term
variations
RCM
(RegCM, WRF)
Hourly-to-
daily forecast
Cloudiness variability: SWIO
– Seasonal: fluctuations of
the location and intensity of
the ITCZ and the trade winds
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Coppola et al. 2012
MH
Morel et al. 2014
Cloudiness variability: SWIO
– Seasonal: fluctuations of
the location and intensity of
the ITCZ and the trade winds
– Synoptic: tropical cyclone,
tropical temperate trough
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Macron et al. 2014
Cloudiness variability: SWIO
– Seasonal: fluctuations of
the location and intensity of
the ITCZ and the trade winds
– Synoptic: tropical cyclone,
tropical temperate trough
– Intraseasonal: MJO
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MJO animation from Adrian Matthews
Cloudiness variability: SWIO
– Seasonal: fluctuations of
the location and intensity of
the ITCZ and the trade winds
– Synoptic: tropical cyclone,
tropical temperate trough
– Intraseasonal: MJO
– Interannual: ENSO
10
Faucherau et al. 2009
Cloudiness variability: Reunion
– meteorology driven by a
combination of large/meso-
scale and local-scale
processes (land-sea
breezes, slope winds, …)
3 typical weather situations
1. dry trade-wind regime
http://www.meteofrance.re/climat/pedagogie/situations
11
Cloudiness variability: Reunion
– meteorology driven by a
combination of large/meso-
scale and local-scale
processes (land-sea
breezes, slope winds, …)
3 typical weather situations
1. dry trade-wind regime
2. humid trade-wind regime
http://www.meteofrance.re/climat/pedagogie/situations
12
Cloudiness variability: Reunion
– meteorology driven by a
combination of large/meso-
scale and local-scale
processes (land-sea
breezes, slope winds, …)
3 typical weather situations
1. dry trade-wind regime
2. humid trade-wind regime
3. convection over the
topography
http://www.meteofrance.re/climat/pedagogie/situations
13
Surface radiative fluxes observations
(a) Temperature
(b) Solar irradiation
(c) Precipitation
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GEBA and BSRN observation sites (Wild et al. 2013)
Météo France network
14
LE2P radiometric network
A typical station
Indoor c
alib
ratio
n
Ou
tdoor c
alib
ratio
n
9060/9846/9847/17025
Quality Control
Calibration
DWH
17
New BSRN site proposal
Airport
Campus
New BSRN site proposal
New BSRN site proposal
CM SAF annual mean irradiance (W/m2 from
hourly mean values) for 2009-2013
Very first measurements…
21
GH
I (W
/m2)
April 11, 2016
0 1 2 3 4 5 6 7 8 9 1011121314151617 181920212223240
200400600800
100012001400
CMP22
SPN1
MF
DH
I (W
/m2)
0 1 2 3 4 5 6 7 8 9 1011121314151617 181920212223240
200400600800
100012001400
CMP22
SPN1
Time (hours)
DN
I (W
/m2)
0 1 2 3 4 5 6 7 8 9 1011121314151617 181920212223240
200400600800
100012001400
CHP1
mean bias = –3.6%
mean bias = +5.2%
Conclusion and perspectives
• Proposed measurement site at (21°8S;55.5°E) in a
climatic zone not covered by existing operational
sites
• Proposed measurement site collocated with
routine upper-air soundings and basic
meteorological instrumentation (OPAR – Météo
France)
• Very first measurements performed that need to
be carried on; installation of CGR4
• Extension of the station? European Regional
Development Fund project BSRN@Reunion
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RUN?
GOB
DAA
COC
HAN
SYO