The McNish and Lincoln (ML) method, introduced in 1949, was one of the first attempts to produce midterm forecasts of solar activity, up to 12 months ahead. However, it has been poorly described and evaluated in the past literature, in particular its actual operati...
Solar activity is predicted at being about 30% lower in cycle 24 than in cycle 23, synthesizing the typical predictions of solar activity, including those given by NASA and NOAA. The 24th solar cycle is sluggishly coming and it should be an opportune moment for studying solar physics and ...
activity. To test this hypothesis I checked the distribution of energetic solar eruptions within the two subcycles. This is together the involvement of a phenomenon that drives the solar wind. I chose all X-ray eruptions equal to or greater than X6, observed by satellites from 1970 to 1998[...
Forecasters must depend on past solar activity events to evaluate current or future events, and the logistic regression and recommendation algorithm can offer forecasters a choice to improve their predictions. Therefore, Shi et al. (2022) first identified and analyzed the correlation coefficients of ...
An alternative way to predict the solar activity is a regression method which produces a month-by-month esti- mate of the solar cycle's activity level21. Past predictions on earlier solar cycles have also been made by other investigators24,25. Other investigators have used the strength of ...
Finally, the WRF data were used in the proposed regression models to obtain improved prediction results that are generally better than the predictions of pure machine learning and WRF models. The prediction improvements of the average root mean square error reached up to 5.6%5.6% and in the ...
Fortunately, we usually do not focus on the small active regions in solar activity prediction. In this paper, we apply these two object detection models (one-stage algorithm of YOLO and two-stage algorithm of faster R-CNN) to solar active region detection and compare their performance. 3. ...
Indicates how much noise (in S-units) is being generated by interaction between the solar wind and the geomagnetic activity. A more active and disturbed solar wind, the greater the noise. Updated every ½ hour. MUF Maximum Usable Frequency NOAA reported value from 0 to 100MHz. Provides the...
There have been many attempts to make predictions of the solar-activity cycle, which itself tends to be quantified by either sunspot/active-region number or area. Prediction methodologies can be split into three subsets: extrapolation methods, precursor methods, and model-based predictions (Munoz-Jar...
Using midday surface temperature to estimate cooling degree-days from NOAA-AVHRR thermal infrared data: An application for Athens, Greece 机译:使用午间表面温度根据NOAA-AVHRR热红外数据估算冷却天数:希腊雅典的一项应用 Marina Stathopoulou,Constantinos Cartalis,Nektarios Chrysoulakis, Solar Energy 2006 原文传...