A new algorithm was developed to estimate leaf area and sunlight absorption in plants using data from MODIS and MISR instruments. By breaking down the complex process of how plants absorb light, the algorithm combines information from both instruments to create accurate estimates. This algorithm is based on advanced physics techniques and simplifies the calculations into two separate parts, making it easier to analyze. The goal is to improve our understanding of how plants interact with sunlight, which can help in studying global vegetation patterns.