15th bsrn scientific review and workshop july 16-20, 2018, … · 15th bsrn scientific review and...
TRANSCRIPT
![Page 1: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/1.jpg)
The uses of the PAL BSRN station:
research, innovation and training
Jordi Badosa,
LMD/IPSL, Ecole Polytechnique
15th BSRN Scientific Review and Workshop July 16-20, 2018, Boulder
![Page 2: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/2.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
2
Research topics
How to manage the uncertainty and variability from renewables and consumption? How to model, optimise and simulate a realistic system? What are the methods to promote green behaviour to support grid flexibility?
![Page 3: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/3.jpg)
Coté Ouest: Mâts de 10m
Vue vers l’Est
Radar UHF
Lidar profileur de vent
Images ciel météo
Mât 30m: temp. humidité, visibilité,
turbulence, Flux de chaleur
150 instruments
5 300 files/day
3 Go de data/day
Lidar nuages-aérosols Radar nuages
Radiomètre température
Plateformes photovoltaïques
Météo, visibilimètres, Microphysique aérosols
et nuages Isotopes de l’eau
sodar
Bilan radiatif, albédo
Turbulence
Temp,, humidité, vent 3D Flux sol
A multi-parameter site (www.sirta.fr)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
3
![Page 4: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/4.jpg)
Station PAL, Paris region, France
Contribution to BSRN since 2003. Current available parameters in BSRN archive : • SWDn (DIF, DIR,
GLO), LWDn • Air temperature,
RH, pressure The new installation in 2014 will become reference for the site. zone2
zone1
700m
Since 2003
Since 2014
Since 2002 zone2
40m
radflux1
radflux2
Since May 2012
zone1
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
4
![Page 5: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/5.jpg)
How to improve numerical weather predictions?
What are the cloud effects on SWdn and LWdn ?
What are the aerosols effects on solar radiation on pollution peak events ?
How accurate are SWdn and LWdn measurements ?
What is the accuracy of solar resource assessment depending on the data available ?
How radiometers of different quality compare on tilted surfaces?
How to train on SW and LW radiation ?
Questions addressed using the PAL BSRN data
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
5
Which is the gain of combining photovoltaic panels with reflectors ?
![Page 6: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/6.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
6
Water on the pyrgeometer dome creates a positive measurement offset
How accurate are SWdn and LWdn measurements ?
![Page 7: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/7.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
7
Bird sitting on the instrument domes creates large spikes in LWDn or large GLO/SUM inconsistencies
How accurate are SWdn and LWdn measurements ?
![Page 8: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/8.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
8
Situations with broken clouds, with brightness changes on the circumsolar region, might lead to GLO/SUM inconsistencies.
On this day, around 15 UTC, there was a small animal (probably a ladybug) on the window of the pyrheliometer of radflux2.
How accurate are SWdn and LWdn measurements ?
![Page 9: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/9.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
9
What are the aerosols effects on solar radiation on pollution peak events ?
![Page 10: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/10.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
10
What are the aerosols effects on solar radiation on pollution peak events ?
![Page 11: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/11.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
11
Isotropic GHI, DNI, DHI
Klucher model GHI, DNI, DHI
Helbig model GHI
BSRN measurements
Nearby station (ORLY, 10 km away)
Satellite-based CAMS product
Migan et al, 2018, to be submitted
What is the accuracy of solar resource assessment on a tilted surface depending on the data available ?
SR01
SR01
SR01 SR01 SR01
SR01
SR01
![Page 12: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/12.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
12 Migan et al, 2018, to be submitted
What is the accuracy of solar resource assessment on a tilted surface depending on the data available ?
![Page 13: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/13.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
13
How to improve numerical weather predictions?
SR01
![Page 14: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/14.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
14
How to improve numerical weather predictions?
![Page 15: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/15.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
15
How to improve numerical weather predictions?
![Page 16: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/16.jpg)
DPA053
SR01 CMP22
RG100 2
RG100 3
RG100 1 RG100 0
Quels instruments pour mesurer la ressource solaire ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
16
Radiometer comparison
How radiometers of different quality compare on tilted surfaces?
POSTER
Intercomparison of 7 solar radiometers on a tilted plane for photovoltaic applications: preliminary results
![Page 17: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/17.jpg)
Quels instruments pour mesurer la ressource solaire ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
17
Original measurements Corrected for 1) plane reprojection and 2) factor scaling
How radiometers of different quality compare on tilted surfaces?
![Page 18: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/18.jpg)
Quelles solutions pour optimiser une installation PV ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
18
Which is the gain of combining photovoltaic panels with reflectors ?
![Page 19: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/19.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
19
How to train on SW and LW radiation ?
![Page 20: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/20.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
20
How to train on SW and LW radiation ?
![Page 21: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/21.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
21
How to train on SW and LW radiation ?
![Page 22: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/22.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
22
How to train on SW and LW radiation ?
![Page 23: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/23.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
23
How to train on SW and LW radiation ?
![Page 24: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/24.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
24
Clear-sky fluxes from Long et al, 2000, 2006, 2008
What are the cloud effects on SWdn and LWdn ?
![Page 25: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/25.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
25
Clear-sky fluxes from Long et al, 2000, 2006, 2008
What are the cloud effects on SWdn and LWdn ? CRELW=LWDn-LWDn_cs
Chiriaco, M., Dupont, J. C., Bastin, S., Badosa, J., Lopez, J., Haeffelin, M., ... & Guzman, R. (2018). ReOBS: a new approach to synthesize long-term multi-variable dataset and application to the SIRTA supersite. Earth System Science Data, 10(2), 919.
http://sirta.ipsl.fr/reobs.html
![Page 26: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/26.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
26
What are the cloud effects on SWdn and LWdn ? CRELW=LWDn-LWDn_cs
Chiriaco, M., Dupont, J. C., Bastin, S., Badosa, J., Lopez, J., Haeffelin, M., ... & Guzman, R. (2018). ReOBS: a new approach to synthesize long-term multi-variable dataset and application to the SIRTA supersite. Earth System Science Data, 10(2), 919.
![Page 27: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/27.jpg)
How to improve numerical weather predictions?
What are the cloud effects on SWdn and LWdn ?
What are the aerosols effects on solar radiation on pollution peak events ?
How accurate are SWdn and LWdn measurements ?
What is the accuracy of solar resource assessment depending on the data available ?
How radiometers of different quality compare on tilted surfaces?
Thanks for your attention!
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
27
Which is the gain of combining photovoltaic panels with reflectors ?
How to train on SW and LW radiation ?
![Page 28: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/28.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
28
Extra slides
![Page 29: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/29.jpg)
70m
10m
620m
GLO1
GLO2
GLO3
Downwelling SW irradiance comparison (2015)
1 minute
GLO2 vs GLO1
GLO2 vs GLO3
GLO1 80m distance
620m distance
![Page 30: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/30.jpg)
70m
10m
620m
Downwelling SW irradiance comparison (2015)
10 minutes
GLO2 vs GLO1 80m distance
GLO2 vs GLO3 620m distance
GLO1
GLO2
GLO3
![Page 31: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/31.jpg)
70m
10m
620m
GLO1
GLO2
GLO3
Downwelling SW irradiance comparison (2015)
1 minute
GLO2 vs SPN1
GLO2 vs SPLITE
GLO1 10m distance
10m distance
![Page 32: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/32.jpg)
70m
10m
620m
Downwelling SW irradiance comparison (2015)
10 minutes GLO1
GLO2
GLO3
GLO2 vs SPN1
GLO2 vs SPLITE
10m distance
10m distance
![Page 33: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/33.jpg)
70m
10m
620m
Downwelling SW irradiance comparison (2015, SZA<85º)
10
min
1 d
ay
1 m
on
th
Mean absolute difference with respect to CMP22 2
CMP22 1
CMP22 2
CMP22 3
![Page 34: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/34.jpg)
70m
10m
620m 10
min
1 d
ay
1 m
on
th
P10 and P90 of differences with respect to CMP22 2
Downwelling SW irradiance comparison (2015, SZA<85º) CMP22 1
CMP22 2
CMP22 3
![Page 35: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/35.jpg)
Global, diffuse, Direct
irradiance
Irradiance on the plane of the panel Temperature
of the Panel
Photovoltaic power
Step 2 Step 3 Step 4
Air temp., wind speed
Global, horiz.
irradiance
Step 1
Combien vont produire mes panneaux PV ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
35
![Page 36: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/36.jpg)
C-Si Pmpp = 250 W = 15% 1st generation
HIT Pmax = 240 W = 19% Best PV efficiency
µc-Si/a-Si tandem Pmpp = 128 W = 9,5% Thin film technology
CIS Pmpp = 150 W = 12,2% Thin film technology
CdTe Pmpp = 82,5 W = 11,4% Thin film technology
a-Si triple junction Pmpp = 144 W = 6,7% Thin film technology
Quel panneau PV choisir ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
36
![Page 37: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/37.jpg)
kWh Sharp kWh FranceWatts kWh SolaFrontier kWh Panasonic kWh FirstSolar
Quel panneau PV choisir ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
37
![Page 38: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/38.jpg)
kWh Sharp kWh FranceWatts kWh SolaFrontier kWh Panasonic kWh FirstSolar
Quel panneau PV choisir ?
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
38
![Page 39: 15th BSRN Scientific Review and Workshop July 16-20, 2018, … · 15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder 11 Isotropic GHI, DNI, DHI Klucher model GHI,](https://reader033.vdocuments.us/reader033/viewer/2022042917/5f59ab4914f383099f620ab6/html5/thumbnails/39.jpg)
15th BSRN Scientific Review and Workshop, July 16-20, 2018, Boulder
39