{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T15:20:09Z","timestamp":1774279209608,"version":"3.50.1"},"reference-count":86,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2024,7,10]],"date-time":"2024-07-10T00:00:00Z","timestamp":1720569600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Foundation for Science and Technology (FCT)","award":["SFRH\/BD\/2018"],"award-info":[{"award-number":["SFRH\/BD\/2018"]}]},{"name":"Foundation for Science and Technology (FCT)","award":["UID\/04047\/2020"],"award-info":[{"award-number":["UID\/04047\/2020"]}]},{"name":"R&amp;D Centre for Territory, Environment and Construction (CTAC)","award":["SFRH\/BD\/2018"],"award-info":[{"award-number":["SFRH\/BD\/2018"]}]},{"name":"R&amp;D Centre for Territory, Environment and Construction (CTAC)","award":["UID\/04047\/2020"],"award-info":[{"award-number":["UID\/04047\/2020"]}]},{"name":"Landscapes, Heritage and Territory Laboratory (Lab2PT) Center of Design and Technology (DeTech)","award":["SFRH\/BD\/2018"],"award-info":[{"award-number":["SFRH\/BD\/2018"]}]},{"name":"Landscapes, Heritage and Territory Laboratory (Lab2PT) Center of Design and Technology (DeTech)","award":["UID\/04047\/2020"],"award-info":[{"award-number":["UID\/04047\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Buildings"],"abstract":"<jats:p>Accurate knowledge of solar radiation data or its estimation is crucial to maximize the benefits derived from the Sun. In this context, many sectors are re-evaluating their investments and plans to increase profit margins in line with sustainable development based on knowledge and estimation of solar radiation. This scenario has drawn the attention of researchers to the estimation and measurement of solar radiation with a low level of error. Various types of models, such as empirical models, time series, artificial intelligence algorithms and hybrid models, for estimating and measuring solar radiation have been continuously developed in the literature. In general, these models require atmospheric, geographical, climatic and historical solar radiation data from a specific region for accurate estimation. Each analysis model has its advantages and disadvantages when it comes to estimating solar radiation and, depending on the model, the results for one region may be better or worse than for another. Furthermore, it has been observed that an input parameter that significantly improves the model\u2019s performance in one region can make it difficult to succeed in another. The research gaps, challenges and future directions in terms of solar radiation estimation have substantial impacts, but regardless of the model, in situ measurements and commercially available equipment consistently influence solar radiation calculations and, subsequently, simulations or estimates. This article aims to exemplify, through a case study in a multi-family residential building located in Viana do Castelo, a city in the north of Portugal, the difficulties of capturing the spectrum of radiations that make up the total radiation that reaches the measuring equipment or site. Three pieces of equipment are used\u2014a silicon pyranometer, a thermopile pyranometer and a solar meter\u2014on the same day, in the same place, under the same meteorological conditions and with the same measurement method. It is found that the thermopile pyranometer has superior behavior, as it does not oscillate as much with external factors such as the ambient temperature, which influence the other two pieces of equipment. However, due to the different assumptions of the measurement models, the various components of the measurement site make it difficult to obtain the most accurate and reliable results in most studies. Despite the advantages of each model, measurement models have gained prominence in terms of the ease of use and low operating costs rather than the rigor of their results.<\/jats:p>","DOI":"10.3390\/buildings14072117","type":"journal-article","created":{"date-parts":[[2024,7,10]],"date-time":"2024-07-10T15:22:05Z","timestamp":1720624925000},"page":"2117","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Solar Radiation Measurement Tools and Their Impact on In Situ Testing\u2014A Portuguese Case Study"],"prefix":"10.3390","volume":"14","author":[{"given":"Marta","family":"Oliveira","sequence":"first","affiliation":[{"name":"Centre for Territory, Environment and Construction (CTAC), Department of Civil Engineering, Engineering School, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2931-5175","authenticated-orcid":false,"given":"H\u00e9lder","family":"Silva Lopes","sequence":"additional","affiliation":[{"name":"Lab2PT\u2014Landscape, Heritage and Territory Laboratory, Department of Geography, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2932-321X","authenticated-orcid":false,"given":"Paulo","family":"Mendon\u00e7a","sequence":"additional","affiliation":[{"name":"Lab2PT\u2014Landscape, Heritage and Territory Laboratory, School of Architecture, Art and Design, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4546-0305","authenticated-orcid":false,"given":"Martin","family":"Tenpierik","sequence":"additional","affiliation":[{"name":"Faculty of Architecture and the Built Environment, Delft University of Technology, 2628 Delft, The Netherlands"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0199-8664","authenticated-orcid":false,"given":"L\u00edgia Torres","family":"Silva","sequence":"additional","affiliation":[{"name":"Centre for Territory, Environment and Construction (CTAC), School of Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"798","DOI":"10.1016\/j.rser.2012.12.043","article-title":"Empirical models for estimating global solar radiation: A review and case study","volume":"21","author":"Besharat","year":"2013","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2864","DOI":"10.1016\/j.rser.2012.01.064","article-title":"A review of solar energy modeling techniques","volume":"16","author":"Khatib","year":"2012","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"112511","DOI":"10.1016\/j.rser.2022.112511","article-title":"Modeling daily global solar radiation using only temperature data: Past, development, and future","volume":"163","author":"Qiu","year":"2022","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"120357","DOI":"10.1016\/j.jclepro.2020.120357","article-title":"A comprehensive review of hybrid models for solar radiation forecasting","volume":"258","author":"Guermoui","year":"2020","journal-title":"J. Clean. Prod."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"e13167","DOI":"10.1016\/j.heliyon.2023.e13167","article-title":"A state of art review on estimation of solar radiation with various models","volume":"9","year":"2023","journal-title":"Heliyon"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.enconman.2015.04.021","article-title":"A new approach to estimate the spatial distribution of solar radiation using topographic factor and sunshine duration in South Korea","volume":"101","author":"Park","year":"2015","journal-title":"Energy Convers. Manag."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Matejicek, L. (2017). Solar Energy: Estimates of Energy Potential and Environmental Issues. Assessment of Energy Sources Using GIS, Springer.","DOI":"10.1007\/978-3-319-52694-2"},{"key":"ref_8","unstructured":"Ritchie, H., Roser, M., and Rosado, P. (2023, December 12). Renewable Energy. Our World Data. Available online: https:\/\/ourworldindata.org\/renewable-energy."},{"key":"ref_9","unstructured":"WCED (1987). Special Working Session: World commission on environment and development. Our Common Future, 17, 1\u201391."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"110114","DOI":"10.1016\/j.rser.2020.110114","article-title":"Prediction of daily global solar radiation using different machine learning algorithms: Evaluation and comparison","volume":"135","year":"2021","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/j.enbuild.2013.12.058","article-title":"Cooling of a photovoltaic module with temperature controlled solar collector","volume":"72","author":"Ceylan","year":"2014","journal-title":"Energy Build."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"501","DOI":"10.14710\/ijred.2022.43713","article-title":"The Influence of Temperature and Irradiance on Performance of the photovoltaic panel in the Middle of Iraq","volume":"11","author":"Ahmed","year":"2022","journal-title":"Int. J. Renew. Energy Dev."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Pandey, A., Pandey, P., and Tumuluru, J.S. (2022). Solar Energy Production in India and Commonly Used Technologies\u2014An Overview. Energies, 15.","DOI":"10.3390\/en15020500"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Obiora, C.N., Ali, A., and Hasan, A.N. (2020, January 29\u201331). Forecasting Hourly Solar Irradiance Using Long Short-Term Memory (LSTM) Network. Proceedings of the 11th International Renewable Energy Congress, IREC 2020, Hammamet, Tunisia.","DOI":"10.1109\/IREC48820.2020.9310449"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.rser.2013.06.042","article-title":"Review of solar irradiance forecasting methods and a proposition for small-scale insular grids","volume":"27","author":"Diagne","year":"2013","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1007\/BF01049060","article-title":"Selected questions of topical interest in human bioclimatology","volume":"35","author":"Jendritzky","year":"1991","journal-title":"Int. J. Biometeorol."},{"key":"ref_17","unstructured":"Matzarakis, A., Mayer, H., and Rutz, F. (September, January 25\u201328). Radiation and thermal comfort. Proceedings of the 6th Hellenic Conference in Meteorology, Climatology and Atmospheric Physics, Ioannina, Greece."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1007\/s00484-006-0061-8","article-title":"Modelling radiation fluxes in simple and complex environments\u2014Application of the RayMan model","volume":"51","author":"Matzarakis","year":"2007","journal-title":"Int. J. Biometeorol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1016\/j.renene.2022.11.056","article-title":"Quality control procedure for 1-minute pyranometric measurements of global and shadowband-based diffuse solar irradiance","volume":"202","author":"Nollas","year":"2023","journal-title":"Renew. Energy"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1016\/j.solener.2021.11.023","article-title":"High resolution measurement network of global horizontal and tilted solar irradiance in southern Germany with a new quality control scheme","volume":"231","author":"Lorenz","year":"2022","journal-title":"Sol. Energy"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"109475","DOI":"10.1016\/j.measurement.2021.109475","article-title":"Calibration of solar radiometers with traceability to the world radiometric reference using an absolute cavity radiometer","volume":"179","author":"Mudike","year":"2021","journal-title":"Measurement"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"100591","DOI":"10.1016\/j.csite.2020.100591","article-title":"Measurement of global and direct normal solar energy radiation in Seri Iskandar and comparison with other cities of Malaysia","volume":"18","author":"Mohammad","year":"2020","journal-title":"Case Stud. Therm. Eng."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Moiz, S.A., Alahmadi, A.N.M., and Aljohani, A.J. (2020). Design of silicon nanowire array for PEDOT: PSS-silicon nanowire-based hybrid solar cell. Energies, 13.","DOI":"10.3390\/en13153797"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1486","DOI":"10.1016\/j.renene.2019.07.070","article-title":"Simplified model to correct thermopile pyranometer solar radiation measurements for photovoltaic module yield estimation","volume":"146","year":"2020","journal-title":"Renew. Energy"},{"key":"ref_25","first-page":"12008","article-title":"Low-cost data logging device to measure irradiance based on a Peltier cell and artificial neural networks","volume":"1433","author":"Merma","year":"2020","journal-title":"J. Phys."},{"key":"ref_26","first-page":"1676","article-title":"Design and Implementation of an Electronic Pyranometer","volume":"14","author":"John","year":"2019","journal-title":"IOSR J. Electr. Electron. Eng. (IOSR-JEEE) E-ISSN"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1202","DOI":"10.1016\/j.egypro.2018.11.286","article-title":"Accuracy Measurement of Pyranometer vs Reference cell for PV resource assessment","volume":"157","author":"Azouzoute","year":"2019","journal-title":"Energy Procedia"},{"key":"ref_28","first-page":"12045","article-title":"A development of a low-cost pyranometer for measuring broadband solar radiation","volume":"1380","author":"Tohsing","year":"2019","journal-title":"J. Phys."},{"key":"ref_29","unstructured":"Osinowo, M.O., Willoughby, A.A., Ewetumo, T., and Kolawole, L.B. (2019). Development of a Low-Cost Pyrometer using Locally Sourced Materials. Int. J. Sci. Res. Dev., 7."},{"key":"ref_30","unstructured":"Rus-Casas, C., Hontoria, L., Fern\u00e1ndez-Carrasco, J.I., Jim\u00e9nez-Castillo, G., and Mu\u00f1oz-Rodr\u00edguez, F. (2019). Development of a Utility Model for the Measurement of Global Radiation in Photovoltaic Applications in the Internet of Things (IoT). Electronics, 8."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Vignola, F., Michalsky, J., and Stoffel, T. (2019). Solar and Infrared Radiation Measurements, CRC Press. [2nd ed.].","DOI":"10.1201\/b22306"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"de Barros, R.C., Callegari, J.M.S., do Carmo Mendon\u00e7a, D., Amorim, W.C.S., Silva, M.P., and Pereira, H.A. (2018, January 12\u201314). Low-cost solar irradiance meter using LDR sensors. Proceedings of the 13th IEEE International Conference on Industry Applications (INDUSCON), Sao Paulo, Brazil.","DOI":"10.1109\/INDUSCON.2018.8627176"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.5541\/ijot.5000209000","article-title":"Thermal pyranometer using the open hardware arduino platform","volume":"21","author":"Avallone","year":"2018","journal-title":"Int. J. Thermodyn."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"150","DOI":"10.1016\/j.compag.2018.06.011","article-title":"Solar energy radiation measurement with a low\u2013power solar energy harvester","volume":"151","year":"2018","journal-title":"Comput. Electron. Agric."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"143","DOI":"10.3126\/jie.v14i1.20078","article-title":"Estimation of Global Solar Radiation Using Empirical Model on Meteorological Parameters at Simara Airport, Bara, Nepal","volume":"14","author":"Awasthi","year":"2018","journal-title":"J. Inst. Eng."},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Vignola, F., Peterson, J., Kessler, R., Dooraghi, M., Sengupta, M., and Mavromatakis, F. (2018, January 10\u201315). Evaluation of photodiode-based pyranometers and reference solar cells on a two-axis tracking system. Proceedings of the IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), Waikoloa, HI, USA.","DOI":"10.1109\/PVSC.2018.8547299"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1767","DOI":"10.1016\/j.proeng.2017.02.001","article-title":"Reliable and inexpensive solar irradiance measurement system design","volume":"168","author":"Orsetti","year":"2016","journal-title":"Procedia Eng."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1323","DOI":"10.1175\/JTECH-D-16-0224.1","article-title":"Significant improvements in pyranometer nighttime offsets using high-flow DC ventilation","volume":"34","author":"Michalsky","year":"2017","journal-title":"J. Atmos. Ocean. Technol."},{"key":"ref_39","first-page":"12850","article-title":"Development of Low Cost Data Acquisition System for Photo Voltaic Systems","volume":"5","author":"Parthasarathy","year":"2016","journal-title":"Int. J. Innov. Res. Sci. Eng. Technol."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"629","DOI":"10.1016\/j.solener.2016.07.044","article-title":"A shadow-ring device for measuring diffuse solar radiation on a vertical surface in a tropical zone","volume":"136","author":"Chaiyapinunt","year":"2016","journal-title":"Sol. Energy"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"904","DOI":"10.4314\/njt.v35i4.27","article-title":"Development of micro controller-based monitoring system for a stand-alone photovoltaic system","volume":"35","author":"Agawa","year":"2016","journal-title":"Niger. J. Technol."},{"key":"ref_42","first-page":"47","article-title":"Global solar radiation measurement in Abakaliki Ebonyi state Nigeria using locally made pyranometer","volume":"3","author":"Nwankwo","year":"2015","journal-title":"Int. J. Energy Environ. Res."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1016\/j.solener.2015.07.031","article-title":"The influence of sky conditions on the standardized calibration of pyranometers and on the measurement of global solar irradiation","volume":"121","author":"Olano","year":"2015","journal-title":"Sol. Energy"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1016\/j.solener.2015.06.004","article-title":"Using multi-pyranometer arrays and neural networks to estimate direct normal irradiance","volume":"119","author":"Srikrishnan","year":"2015","journal-title":"Sol. Energy"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1515\/awutp-2015-0207","article-title":"A Solid State Pyranometer","volume":"58","author":"Dumitrescu","year":"2015","journal-title":"Ann. West Univ. Timis.-Phys."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.solener.2015.06.033","article-title":"A new method for checking the leveling of pyranometers","volume":"120","author":"Menyhart","year":"2015","journal-title":"Solar Energy"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1016\/j.solmat.2014.08.008","article-title":"Design of an accurate, low-cost autonomous data logger for PV system monitoring using ArduinoTM that complies with IEC standards","volume":"130","author":"Fuentes","year":"2014","journal-title":"Sol. Energy Mater. Sol. Cells"},{"key":"ref_48","first-page":"1","article-title":"Design, Construction and Calibration of a Solar Radiation Measuring Meter","volume":"1","author":"Daniel","year":"2014","journal-title":"Rev. Adv. Phys. Theor. Appl."},{"key":"ref_49","unstructured":"(2024, May 22). Design of a Low-Cost Sensor for Solar Irradiance. Available online: http:\/\/oceanoptics.com\/."},{"key":"ref_50","unstructured":"Hafid, A.A., Meddah, K., Attari, M., and Remram, Y. (2014, January 27). A Thermopile Based Pyranometer for Large Spectrum Sunlight Measurement. Proceedings of the International Conference on Embedded Systems in Telecommunications and Instrumentation (ICESTI\u201914), Annaba, Algeria."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1211","DOI":"10.1016\/j.egypro.2014.10.109","article-title":"Improved Methodology to Measure Normal Incident Solar Radiation with a Multi-pyranometer Array","volume":"57","author":"Baltazar","year":"2014","journal-title":"Energy Procedia"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"2330","DOI":"10.1016\/j.egypro.2014.03.247","article-title":"Long-term Behavior, Accuracy and Drift of LI-200 Pyranometers as Radiation Sensors in Rotating Shadowband Irradiometers (RSI)","volume":"49","author":"Geuder","year":"2014","journal-title":"Energy Procedia"},{"key":"ref_53","first-page":"29","article-title":"Photodiode based pyranometer","volume":"1","author":"Patil","year":"2013","journal-title":"Int. J. Adv. Sci. Eng. Technol."},{"key":"ref_54","first-page":"101","article-title":"Web based measurement system for solar radiation","volume":"2","author":"Awasthi","year":"2012","journal-title":"Int. J. Adv. Comput. Res."},{"key":"ref_55","first-page":"26","article-title":"Construction and Characterization of a Pyranometer Using Locally Available Materials for Global Solar Radiation Measurement","volume":"26","author":"Nwankwo","year":"2012","journal-title":"Asian Transact. Basic Appl. Sci."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"1719","DOI":"10.5897\/AJB10.030","article-title":"Construction of a reliable model pyranometer for irradiance measurements","volume":"9","author":"Medugu","year":"2010","journal-title":"Afr. J. Biotechnol."},{"key":"ref_57","unstructured":"Macome, M.A., Cuamba, B., Pillay, S., and Lovseth, J. (2024, May 22). Design, Construction and Characterization of a Multiple Sensors Solar Radiation Detector for Ises. Available online: https:\/\/energypedia.info\/images\/3\/30\/EN-DESIGN_CONSTRUCTION_AND_CHARACTERIZATION_OF_A_MULTIPLE_SENSORS_SOLAR_RADIATION_DETECTOR_FOR_ISES_2009-M.A._Macome1%3B_et._al..pdf."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"4615","DOI":"10.3390\/s90604615","article-title":"A new and inexpensive pyranometer for the visible spectral range","volume":"9","author":"Enrique","year":"2009","journal-title":"Sensors"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1016\/j.solener.2008.07.015","article-title":"Evaluation of conventional and high-performance routine solar radiation measurements for improved solar resource, climatological trends, and radiative modeling","volume":"83","author":"Gueymard","year":"2009","journal-title":"Sol. Energy"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"322","DOI":"10.1016\/j.solener.2005.02.010","article-title":"A method for improving global pyranometer measurements by modeling responsivity functions","volume":"80","author":"Lester","year":"2006","journal-title":"Sol. Energy"},{"key":"ref_61","first-page":"234","article-title":"Design, Construction and Evaluation of a Pyranometer for Radiation Measurement","volume":"5","author":"Onwuala","year":"2002","journal-title":"Sci. Forum J. Pure Appl."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"677","DOI":"10.1175\/1520-0426(1998)015<0677:IIPD>2.0.CO;2","article-title":"Investigations in pyranometer design","volume":"15","author":"Beaubien","year":"1998","journal-title":"J. Atmos. Ocean. Technol."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1016\/0306-2619(95)00038-T","article-title":"A correction method for solar radiation measurements made using non-calibrated Eppley-type and Robitzsch-type pyranometers","volume":"52","author":"Soulayman","year":"1995","journal-title":"Appl. Energy"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"113075","DOI":"10.1016\/j.enconman.2020.113075","article-title":"A minutely solar irradiance forecasting method based on real-time sky image-irradiance mapping model","volume":"220","author":"Wang","year":"2020","journal-title":"Energy Convers. Manag."},{"key":"ref_65","doi-asserted-by":"crossref","unstructured":"Ameen, B., Balzter, H., Jarvis, C., and Wheeler, J. (2019). Modelling Hourly Global Horizontal Irradiance from Satellite-Derived Datasets and Climate Variables as New Inputs with Artificial Neural Networks. Energies, 12.","DOI":"10.3390\/en12010148"},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"539","DOI":"10.1016\/j.rser.2017.04.107","article-title":"Forecasting of solar energy with application for a growing economy like India: Survey and implication","volume":"78","author":"Mohanty","year":"2017","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_67","doi-asserted-by":"crossref","unstructured":"Harrison, D.C., Seah, W.K.G., and Rayudu, R.K. (2015, January 26\u201329). Coverage preservation in energy harvesting wireless sensor networks for rare events. Proceedings of the 2015 IEEE 40th Conference on Local Computer Networks (LCN), Clearwater Beach, FL, USA.","DOI":"10.1109\/LCN.2015.7366301"},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"2447","DOI":"10.1016\/j.aej.2020.12.048","article-title":"Estimation of solar radiation using modern methods","volume":"60","author":"Karaman","year":"2021","journal-title":"Alex. Eng. J."},{"key":"ref_69","unstructured":"Hukseflux (2023, November 24). What Is a Pyrheliometer?|Hukseflux. Available online: https:\/\/www.hukseflux.com\/applications\/solar-energy-pv-system-performance-monitoring\/what-is-a-pyrheliometer."},{"key":"ref_70","doi-asserted-by":"crossref","unstructured":"Duffie, J.A., and Beckman, W.A. (2013). Solar Engineering of Thermal Processes, John Wiley & Sons, Inc.","DOI":"10.1002\/9781118671603"},{"key":"ref_71","unstructured":"The US Solar Institute (2023, December 12). Pyranometer. The US Solar Institute. Available online: https:\/\/www.myussi.com\/glossary\/pyranometer\/."},{"key":"ref_72","unstructured":"(1990). Solar Energy\u2014Specification and Classification of Instruments for Measuring Hemispherical Solar and Direct Solar Radiation (Standard No. ISO 9060:1990(en))."},{"key":"ref_73","unstructured":"ASTM (2023, May 25). G183 Standard Practice for Field Use of Pyranometers, Pyrheliometers and UV Radiometers. Available online: https:\/\/www.astm.org\/g0183-15.html."},{"key":"ref_74","unstructured":"(2021). Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field 1 (Standard No. ASTM E1918)."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"1717","DOI":"10.1016\/j.solener.2010.04.018","article-title":"Measuring solar reflectance\u2014Part I: Defining a metric that accurately predicts solar heat gain","volume":"84","author":"Levinson","year":"2010","journal-title":"Sol. Energy"},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"1745","DOI":"10.1016\/j.solener.2010.04.017","article-title":"Measuring solar reflectance\u2014Part II: Review of practical methods","volume":"84","author":"Levinson","year":"2010","journal-title":"Sol. Energy"},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"648","DOI":"10.1016\/j.solener.2008.01.001","article-title":"Procedure for measuring the solar reflectance of flat or curved roofing assemblies","volume":"82","author":"Akbari","year":"2008","journal-title":"Sol. Energy"},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"826","DOI":"10.1016\/j.solener.2019.11.103","article-title":"Experimental comparison of pyranometer, reflectometer, and spectrophotometer methods for the measurement of roofing product albedo","volume":"206","author":"Levinson","year":"2020","journal-title":"Sol. Energy"},{"key":"ref_79","unstructured":"(2016). Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Slope Surface in the Field (Standard No. ASTM E1918-16)."},{"key":"ref_80","unstructured":"(2002). Standard Test Method for Determination of Solar Reflectance near Ambient Temperature Using a Portable Solar Reflectometer (Standard No. C1549-04)."},{"key":"ref_81","unstructured":"(2020). Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres (Standard No. ASTM E903-20)."},{"key":"ref_82","unstructured":"(2008). Evaluation of Measurement Data\u2014Guide to the Expression of Uncertainty in Measurement (Standard No. JCGM 100:2008(E))."},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1016\/S0038-092X(96)00088-6","article-title":"Sombrero: A PC-Tool To Calculate Shadows On Arbitrarily Oriented Surfaces","volume":"58","author":"Niewienda","year":"1996","journal-title":"Sol. Energy"},{"key":"ref_84","doi-asserted-by":"crossref","unstructured":"Paulescu, M., Paulescu, E., Gravila, P., and Badescu, V. (2013). Weather Modeling and Forecasting of PV Systems Operation, Springer. Green Energy and Technology.","DOI":"10.1007\/978-1-4471-4649-0"},{"key":"ref_85","unstructured":"Zahumensky, I. (2024, January 29). Guidelines on Quality Control Procedures for Data from Automatic Weather Stations. Available online: https:\/\/www.researchgate.net\/publication\/228826920_Guidelines_on_Quality_Control_Procedures_for_Data_from_Automatic_Weather_Stations>."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"224","DOI":"10.1016\/j.solener.2016.01.047","article-title":"Effects of changing spectral radiation distribution on the performance of photodiode pyranometers","volume":"129","author":"Vignola","year":"2016","journal-title":"Sol. Energy"}],"container-title":["Buildings"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-5309\/14\/7\/2117\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:12:55Z","timestamp":1760109175000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-5309\/14\/7\/2117"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,7,10]]},"references-count":86,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2024,7]]}},"alternative-id":["buildings14072117"],"URL":"https:\/\/doi.org\/10.3390\/buildings14072117","relation":{},"ISSN":["2075-5309"],"issn-type":[{"value":"2075-5309","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,7,10]]}}}