خیلی عالی حقیقتش من ده بیست تا فیلم دیدم اما هنوزم فرق بین سفته و چک رو نمیفهمم😑 سفته با عقلم جور در نمیاد،غیر منطقیه که بگیم یه کاغذ میدیم به طرف اما هیچ عواقب قضایی واسه ما نداره،چه پاس بشه چه نشه اگه اینجوره اصلا چرا سفته میدن،همینطور شفاهی قول بده و تموم؟؟
سلام یک نفر بایت بدهی به پدرم سفته داده ۱۳۷۰ ولی پدرم اقداماتی انجام نداده و برگشت نزده مبلغ سفته ده هزار تومن من بردم وکیل نشان دادم گفتند چون برگشت نخورده و شکایت نکردند الان ارزش همان ده هزار تومن هستش درسته؟
sir, i am trying to draw taylor diagram for simualted model data vs. observed data but was unable to understand the diagram once generated , unable to understand the details in diagram, it would be helpful to me if you could explain
Hi, Thank you for your comment. This document provides a good explanation of the Taylor Diagram. pcmdi.llnl.gov/staff/taylor/CV/Taylor_diagram_primer.pdf
Its extremely helpful! I would like to request more videos in English. When you explain in relation to research paper, its easy to understand and grasp the point extremely well. Thank you for your time!
Hello. We've used the "taylor.diagram" function in R programming language. If you're familiar with R, you can implement this function by reading its manual.
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-k3QWRPNB_pg.html. Hello Sir just have a look at this video, in this video, they are suggesting that it is not correct to evaluate the historical data simulated by GCMs with the observed historical data and not the correct way to identify the ideal GCM model.
Hello, Thanks for watching our video. Please note that the video you mentioned doesn't state that you cannot compare the simulations of GCMs with observations. It suggests that, in contrast to weather forecast models, GCMs are not expected to forecast EXACT weather conditions over a specific region at a specific time. In fact, GCMs are designed to simulate the long-term TREND and VARIABILITY of climate. In this study, we have studied how well GCMs can represent the long-term trend and variability of precipitation and temperature over Iran using seven different performance criteria. If you're interested in this topic, you can read [at least] the Introduction section of our article to learn more about evaluating the performance of GCMs. Good luck.
@@WaterTalks Thank you sir for your reply. Can I ask you one more doubt. First of all sorry for asking these small doubts. You have used seven performance indicators like RMSE, mean bias, etc to rank the GCM models. Sir, these performance indicators like RMSE, mean bias, etc are measuring the error between the observed and simulated values, so are these contradictory to that what they are saying in that video?
@@deepthibhadran4181 Hello, As mentioned in our video, the performance of any model, including GCMs, should be evaluated before using the model for predicting future. Performance evaluation is a study in which you examine how well a model can represent the real-world. And the real-world is quantified based on observations. If you do not use observations, how would you be able to evaluate the performance of models? Observations provide a reference for model evaluation. Please see our video once again, and read the Introduction section of the article if you would like to learn more.
