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Research article · 2026 · Full text

International Journal of Geography Geology and Environment

Remote sensing and AI applications in monsoon rainfall forecasting

S. S. Chinchorkar

Volume 8(1) · Pages 26–33 · DOI: 10.22271/27067483.2026.v8.i1a.469 ↗

Research areasPrecipitation Measurement and AnalysisSoil Moisture and Remote SensingHydrological Forecasting Using AI

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Abstract

Author-written

Monsoon rainfall forecasting is also important in monsoon dependent areas as agricultural planning, water management, and reducing disaster risks require accurate information. The proposed research explores the use of both types of multi-source remote sensory data and artificial intelligence (AI) methods in promotion of accuracy and reliability of overall, monsoon rainfall prediction. Satellite-retrieved data, such as precipitation, sea surface temperature, soil moisture, and atmospheric markers, were inputted and existed to 4 AI models: Artificial Neural Network (ANN), Support Vector Regression (SVR), Random Forest (RF), and Long Short-Term Memory (LSTM). Modelling The models were tested with normal operating performance measures throughout several monsoon seasons. The obtained experimental results indicate that the LSTM model remains the most successful in the combination of overall performance, Root Mean Square Error (RMSE) = 5.8 mm/day, Mean Absolute Error (MAE) = 4.2 mm/day, and coefficient of determination (R 2 = 0.85) at 1-day lead time forecasting. In comparison with RF (RMSE = 6.6 mm/day) and ANN (RMSE = 7.8 mm/day), LSTM had a higher ability to capture the temporal dependence and intra seasonal variability. The strength of deep learning-based methods was also supported by comparing the performance of the two prediction technology in terms of forecast lead times and monsoon sounds. The results emphasize the validity of remote sensing data along with AI algorithms as a computationally effective and scalable substitute of conventional forecasting systems, especially in the data-scarce areas.

Summary

Source-checked

Plain-language reading of the full paper, prepared with AI and checked against the text. Each point links to the authors' own words.

  1. Why it matters

    • Accurate monsoon rainfall forecasting is critical for water management, agricultural planning, and the reduction of disaster risks in regions dependent on monsoons. View evidence ↗

      Why it matters

      Accurate monsoon rainfall forecasting is critical for water management, agricultural planning, and the reduction of disaster risks in regions dependent on monsoons.

      In the paper's own words

      “Monsoon rainfall forecasting is also important in monsoon-dependent areas as agricultural planning, water management, and reducing disaster risks require accurate information.”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
    • Conventional numerical weather prediction (NWP) methods often struggle to model localized extremes, intraseasonal oscillations, and the specific processes of monsoon onset or withdrawal at short time scales. View evidence ↗

      Why it matters

      Conventional numerical weather prediction (NWP) methods often struggle to model localized extremes, intraseasonal oscillations, and the specific processes of monsoon onset or withdrawal at short time scales.

      In the paper's own words

      “Physically based conventional numerical weather prediction (NWP) methods usually do not model localized extremes, the ability to represent intraseasonal oscillations and the localized process of monsoon onset or withdrawal, particularly at regional Earth scales and at short times [2].”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
    • Traditional statistical methods are often inadequate for handling the high volume, non-linearity, and heterogeneity of remote sensing data. View evidence ↗

      Why it matters

      Traditional statistical methods are often inadequate for handling the high volume, non-linearity, and heterogeneity of remote sensing data.

      In the paper's own words

      “traditional statistical analysis methods are challenged by the sheer amount, non-linearity and heterogeneity of the data provided by remote sensing methods.”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
  2. The question

    • The study aims to explore how combining multi-source remote sensing data with artificial intelligence (AI) methods can improve the accuracy and reliability of monsoon rainfall predictions. View evidence ↗

      The question

      The study aims to explore how combining multi-source remote sensing data with artificial intelligence (AI) methods can improve the accuracy and reliability of monsoon rainfall predictions.

      In the paper's own words

      “The proposed research explores the use of both types of multi-source remote sensory data and artificial intelligence (AI) methods in promotion of accuracy and reliability of overall, monsoon rainfall prediction.”

      Page 1

      Found in: Conclusion

      Read it in the full textOpen PDF at page 1 ↗
  3. What they did

    • The models used predictor variables including sea surface temperature, soil moisture, atmospheric humidity, cloud-top temperature, outgoing longwave radiation, and satellite-based rain forecasts. View evidence ↗

      What they did

      The models used predictor variables including sea surface temperature, soil moisture, atmospheric humidity, cloud-top temperature, outgoing longwave radiation, and satellite-based rain forecasts.

      In the paper's own words

      “Predictor variables are satellite-based rain forecasts, cloud-top temperature, outgoing longwave radiation (OLR), sea surface temperature (SST), soil moisture and atmospheric humidity [5].”

      Page 2

      Found in: Data Sources and Preprocessing

      Read it in the full textOpen PDF at page 2 ↗
    • Four AI models were tested: Long Short-Term Memory (LSTM), Random Forest (RF), Support Vector Regression (SVR), and Artificial Neural Network (ANN). View evidence ↗

      What they did

      Four AI models were tested: Long Short-Term Memory (LSTM), Random Forest (RF), Support Vector Regression (SVR), and Artificial Neural Network (ANN).

      In the paper's own words

      “Satellite-retrieved data... were input into 4 AI models: Artificial Neural Network (ANN), Support Vector Regression (SVR), Random Forest (RF), and Long Short-Term Memory (LSTM).”

      Page 1

      Found in: Results and Analysis Experimental Design

      Read it in the full textOpen PDF at page 1 ↗
    • The dataset was split into training (70%), validation (15%), and testing (15%) sets to prevent data leakage and maintain temporal continuity. View evidence ↗

      What they did

      The dataset was split into training (70%), validation (15%), and testing (15%) sets to prevent data leakage and maintain temporal continuity.

      In the paper's own words

      “The last dataset is divided into training (70%), validation (15%), and testing (15%) so as to maintain the temporal continuity without data leakage [6].”

      Page 2

      Found in: Data Sources and Preprocessing

      Read it in the full textOpen PDF at page 2 ↗
  4. What they found

    • At a 1-day lead time, the LSTM model performed best with an RMSE of 5.8 mm/day, an MAE of 4.2 mm/day, and an R² of 0.85. View evidence ↗

      What they found

      At a 1-day lead time, the LSTM model performed best with an RMSE of 5.8 mm/day, an MAE of 4.2 mm/day, and an R² of 0.85.

      In the paper's own words

      “The obtained experimental results indicate that the LSTM model remains the most successful in the combination of overall performance, Root Mean Square Error (RMSE) = 5.8 mm/day, Mean Absolute Error (MAE) = 4.2 mm/day, and coefficient of determination (R² = 0.85) at 1-day lead time forecasting.”

      Page 1

      Found in: Model Training and Evaluation

      Read it in the full textOpen PDF at page 1 ↗
    • LSTM outperformed RF (RMSE = 6.6 mm/day) and ANN (RMSE = 7.8 mm/day) due to its superior ability to capture intra-seasonal variability and temporal dependence. View evidence ↗

      What they found

      LSTM outperformed RF (RMSE = 6.6 mm/day) and ANN (RMSE = 7.8 mm/day) due to its superior ability to capture intra-seasonal variability and temporal dependence.

      In the paper's own words

      “In comparison with RF (RMSE = 6.6 mm/day) and ANN (RMSE = 7.8 mm/day), LSTM had a higher ability to capture the temporal dependence and intra seasonal variability.”

      Page 1

      Found in: Related Works

      Read it in the full textOpen PDF at page 1 ↗
    • While all models showed increased error with longer lead times, LSTM exhibited the least degradation, maintaining an RMSE of 9.6 mm/day at a 7-day lead time. View evidence ↗

      What they found

      While all models showed increased error with longer lead times, LSTM exhibited the least degradation, maintaining an RMSE of 9.6 mm/day at a 7-day lead time.

      In the paper's own words

      “Nevertheless, LSTM had the least degradation and acceptable accuracy still at 7-day lead time.”

      Page 5

      “Model | 1-Day | 3-Day | 7-Day... LSTM | 5.8 | 7.4 | 9.6”

      Page 5

      Found in: Results Interpretation:

      Read it in the full textOpen PDF at page 5 ↗
    • LSTM was the top performer across all monsoon phases, particularly during the active phase where it achieved an RMSE of 5.4 mm/day. View evidence ↗

      What they found

      LSTM was the top performer across all monsoon phases, particularly during the active phase where it achieved an RMSE of 5.4 mm/day.

      In the paper's own words

      “The LSTM was always best in all the phases especially in the active monsoons where the time dependence is the strongest [27].”

      Page 5

      “Model | Onset Phase | Active Phase | Withdrawal Phase... LSTM | 6.6 | 5.4 | 6.3”

      Page 5

      Found in: Results Interpretation

      Read it in the full textOpen PDF at page 5 ↗
    • LSTM demonstrated the best spatial generalization with the lowest performance drop (15.8%) when tested on a different geographical region. View evidence ↗

      What they found

      LSTM demonstrated the best spatial generalization with the lowest performance drop (15.8%) when tested on a different geographical region.

      In the paper's own words

      “LSTM showed the least performance decay, which shows superior performance in terms of generalisation by area.”

      Page 6

      “Model | RMSE (Training Region) | RMSE (Test Region) | Performance Drop (%)... LSTM | 5.7 | 6.6 | 15.8”

      Page 6

      Found in: Experiment 4: Spatial Generalisation Analysis

      Read it in the full textOpen PDF at page 6 ↗
    • The proposed LSTM model (RMSE = 5.8 mm/day, R² = 0.85) outperformed hybrid AI-NWP systems (RMSE = 6.3 mm/day, R² = 0.81) while remaining more computationally efficient. View evidence ↗

      What they found

      The proposed LSTM model (RMSE = 5.8 mm/day, R² = 0.85) outperformed hybrid AI-NWP systems (RMSE = 6.3 mm/day, R² = 0.81) while remaining more computationally efficient.

      In the paper's own words

      “Compared to hybrid AI-NWP systems, the suggested solution is based only on remote sensing and AI, which is computationally efficient and can be applied to the data sparse areas [29].”

      Page 6

      “Study / Model | Data Type | RMSE (mm/day) | R²... Hybrid AI-NWP (2023) | RS + NWP | 6.3 | 0.81... Proposed LSTM Model | Multi-source RS | 5.8 | 0.85”

      Page 6

      Found in: Results Interpretation

      Read it in the full textOpen PDF at page 6 ↗
  5. What it means

    • The authors conclude that AI-based solutions using satellite data are scalable and effective alternatives to conventional algorithms, enabling more timely and precise monsoon forecasting. View evidence ↗

      What it means

      The authors conclude that AI-based solutions using satellite data are scalable and effective alternatives to conventional algorithms, enabling more timely and precise monsoon forecasting.

      In the paper's own words

      “the experiments confirm the usefulness of AI-based, satellite-based solutions as a potential and scalable alternative to the conventional forecasting algorithms, which leads to more precise and timely systems of monsoon forecasting.”

      Page 7

      Found in: Discussion of Results

      Read it in the full textOpen PDF at page 7 ↗
    • The authors recommend this methodology as a means to provide time-sensitive forecasts that can support early warning systems for extreme precipitation and floods. View evidence ↗

      What it means

      The authors recommend this methodology as a means to provide time-sensitive forecasts that can support early warning systems for extreme precipitation and floods.

      In the paper's own words

      “the given methodology provides an effective alternative, which is able to provide a time-sensitive forecast and can assist the opposition of early warning against the occurrence of floods and extreme precipitation.”

      Page 7

      Found in: Conclusion

      Read it in the full textOpen PDF at page 7 ↗

Visual summary

3 visuals

Illustrations explain the paper; charts are replotted from the paper's own table values.

AI-generated illustration
AI-generated conceptual illustration (Earth's atmosphere and ocean surface during a monsoon). It explains the idea and does not show study data.↗ Enlarge
AI-Driven Rainfall Forecasting Workflow
AI-generated conceptual illustration (Earth's atmosphere and ocean surface during a monsoon). It explains the idea and does not show study data.

AI-generated conceptual illustration (Earth's atmosphere and ocean surface during a monsoon). It explains the idea and does not show study data.

Open full-size image ↗

AI-Driven Rainfall Forecasting Workflow

AI-generated conceptual illustration (Earth's atmosphere and ocean surface during a monsoon). It explains the idea and does not show study data.

View source evidence ↗
Replotted from source data
Replotted from Table 2 (page 3) of the original paper. Every bar is the paper's own table value.↗ Enlarge
RMSE (mm/day) and MAE (mm/day) and more: ANN vs SVR vs RF vs LSTM
Replotted from Table 2 (page 3) of the original paper. Every bar is the paper's own table value.

Replotted from Table 2 (page 3) of the original paper. Every bar is the paper's own table value.

Open full-size image ↗

RMSE (mm/day) and MAE (mm/day) and more: ANN vs SVR vs RF vs LSTM

Replotted from Table 2 (page 3) of the original paper. Every bar is the paper's own table value.

View source evidence ↗
Replotted from source data
Replotted from Table 4 (page 5) of the original paper. Every bar is the paper's own table value.↗ Enlarge
1-Day and 3-Day and more: ANN vs SVR vs RF vs LSTM
Replotted from Table 4 (page 5) of the original paper. Every bar is the paper's own table value.

Replotted from Table 4 (page 5) of the original paper. Every bar is the paper's own table value.

Open full-size image ↗

1-Day and 3-Day and more: ANN vs SVR vs RF vs LSTM

Replotted from Table 4 (page 5) of the original paper. Every bar is the paper's own table value.

View source evidence ↗

Figures & tables

From the original paper
Summary of Data CharacteristicsTable 1Page 3Model Performance Comparison (Testing Phase)Table 2Page 3Overall Model Performance (1-Day Lead Time)Table 3Page 4“Artificial Intelligence-Based Precipitation Estimation Method Using Fengyun-4B Satellite Data”Figure 1Page 4RMSE Comparison across Lead TimesTable 4Page 5Phase-Wise RMSE (mm/day)Table 5Page 5“Artificial intelligence predicts normal summer monsoon rainfall”Figure 2Page 5Comparison with Related WorkTable 7Page 6Spatial Generalisation PerformanceTable 6Page 6“Performance Assessment of Global-EO-Based Precipitation Products against Gridded Rainfall from the Indian MeteorologicalFigure 3Page 6“Estimating Rainfall with Multi-Resource Data over East Asia Based on Machine Learning”Figure 4Page 7
FULL TEXT Original article · reflowed for reading

Introduction

The monsoon rainfall is a prevailing climatic process that influences the agricultural productivity, water supply, the stability of ecosystems and socio-economic sustainability of vast regions of the globe especially South Asia, East Asia, as well as Africa [1] . Effective prediction of monsoon rainfall has been a scientific issue of long-standing since it has a high degree of spatio-temporal variability, complex atmospheric-oceanic interaction, and it is sensitive to the patterns of large-scale circulation. Physically based conventional numerical weather prediction (NWP) methods usually do not model localized extremes, the ability to represent intraseasonal oscillations and the localized process of monsoon onset or withdrawal, particularly at regional Earth scales and at short times [2] . There has been a tremendous change in the monitoring and forecasting of the monsoon using the new technologies of the remote sensing. Sensors on the satellite are also useful to provide realtime, high-resolution monitoring of the most important atmospheric and surface variables, such as cloud properties, precipitation, sea surface temperature, soil moisture and atmospheric water vapour [3] . The data sets are rich in the spatial coverage of the oceanic and terrestrial areas where there is a limited or nonexistent ground-based control and therefore they are beneficial in understanding the dynamics and variability of monsoons. Nonetheless, traditional statistical analysis methods are challenged by the sheer amount, non-linearity and heterogeneity of the data provided by remote sensing methods. In this respect, artificial intelligence (AI) and machine learning (ML) have become strong forces that derive complex patterns and hidden relationships on large datasets of climate. Monsoon rainfall forecasting is progressively conducted using deep learning architectures, ensemble and hybrid AIphysical models to provide increased accuracy in prediction, identify non-linearities of dependencies, and make better lead-times. It is possible to combine remote sensing observations with AI-driven models to eliminate the limitations inherent in the purely physics-based and data-driven approaches.

The study concerns remote sensing and AI applications in further development of the monsoon rainfall prediction. It delves through the manner in which the interplay between satellite-generated data and smart algorithms can enhance the predictive accuracy, aid the monitoring of early warning mechanisms, and bring about the element of goal-centered climate-resilient planning in monsoon-prone areas.

Related Works

The use of remote sensing and geospatial technologies has been widely used to comprehend the hydrometeorological hazards, climate variability and environmental change to provide a solid basis in the study of monsoon rainfall forecasting. Increasing numbers of studies are focusing on the concept of integrating satellite data, GIS, and advanced analytics to enhance the level of spatio-temporal monitoring and prediction accuracy. A systematic thematic and bibliometric literature review of 20 years of remote sensing and GIS based research conducted on flood disasters in South Asia was undertaken by Jathun Arachchige et al. [15] . Their results indicate that there has been increased dependence on satellite-based rainfall products, land surface indicators and the use of geospatial modelling as applied to early warning systems. This paper highlights the significance of high-resolution remote sensing data in resolving dynamics of monsoon-driven floods, and also shows flaws in predictive modelling capabilities, as well as real-time forecasting. New sensing platforms have also improved the monitoring of the environment. Karahan et al. [16] investigated the use of drones in landscape studies and have illustrated the complementary nature of UAV-based measurements with satellite remote sensing due to the ability of such data to offer ultra-high-resolution data. Even though the study was not on rainfall forecasting, its results reveal that UAV data with satellite and AI models has high potential in examining the localised monsoon effects but in this case, surface run-offs and patterns of inundation. Likewise, Luo et al. [23] revealed that UAV LiDAR is effective in estimating the vegetation parameters, closely related to the land-atmosphere interactions and affecting rainfall processes. A number of studies have used machine learning and remote sensing with regards to climate and ecosystem evaluations. Kemarau et al. [17] compared the application of the integrative remote sensing and GIS method to evaluate the effects of the present climate change in the Malaysian ecosystem, and the strength of the spatiotemporal analysis to comprehend the variations in climate. In their study, Khajuria and Kaushik [18] have examined land surface temperature and land use/ land cover transitions in a semi-arid Indian city and how urbanisation affects both the surface energy balance and consequently may influence the local precipitation patterns. Such studies support relevance of land surface predictors as their auxiliary variables in prediction model of monsoon. Machine learning has provided good results in environmental forecasting exercises. Li et al. [20] used remote sensing data to predict drought in China with the use of the Random Forest and extreme Gradient Boosting, reaching high predictive accuracy and showing the appropriateness of these ensemble models in forecasting complex hydro-climatic phenomena. Another study that can draw significant conclusions on the importance of using various data types and sophisticated learning algorithms is the work by Liu et al. [21] , where the authors used multi-source remote sensing data and stacking models to estimate the woody vegetation biomass. Remote sensing has also been applied in the study of climate system sensitivity and extremes. This research identified possible climate tipping points through satellite observations, with Lenton et al. [19] reiterating the usefulness of long-term records of remote sensing in the identification of nonlinear climatic behaviour in monsoon variability. High-resolution Planet Scope imagery was used in flood mapping by Mithu and Azad [25] , and the digital twin technologies were reviewed in flood risks management of urban areas by Mohammed et al. [26] , where remote sensing and early warning systems are important in disaster preparedness. Altogether, the current literature proves the maturity of remote sensing and AI techniques in climate, hydrology, and environmental monitoring. Nonetheless, the research is mostly performed with floods, droughts, or indicators of ecosystems without dealing with the actual monsoon rainfall forecasting. The literature of this research builds on these findings by explicitly combining the multi-source remote sensing data with the AI models to enhance the predictive accuracy and lead time of a monsoon rain-fall in order to close a major gap that was described in prior research [26] .

Methods and Materials

This paper is based on an information-driven model that combines remote sensing measurements through satellites with artificial intelligence (AI) algorithms to predict regional monsoon rain levels. The overall structure of the methodology is that of data acquisition and preprocessing, choice of model, execution of the algorithm, and performance assessment [4] . It focuses on working with high dimensional spatio-temporal data as well as the nonlinear processes of monsoon systems.

Data Sources and Preprocessing

The research data in this study include multi-source remote sensing data and supplementary meteorological data. Predictor variables are satellite-based rain forecasts, cloudtop temperature, outgoing longwave radiation (OLR), sea surface temperature (SST), soil moisture and atmospheric humidity [5] . These data sets are received at a daily time scale and reformatted to resolutions which are consistent across space at 0.25 °C × 0.25 °C. As model training and validation, ground-based rain gauges data are published as reference data. The pre-processing involves the task of missing value interpolation based on time and using spatial smooth filters to remove noise, and normalise in order to provide numerical stability during the model training. Lagged variables (1 15 days) are created to capture the temporal dependencies that are important in monsoon development. The last dataset is divided into training (70%), validation (15%), and testing (15%) so as to maintain the temporal continuity without data leakage [6] .

AI Algorithms Employed

The use of nonlinear relationships and temporal patterns to model relationships determines the four AI algorithms commonly used in rainfall forecasting and climate forecasting.

Artificial Neural Network (ANN)

ANNs are multilayer feed-forward networks and are based on biological neurons. The ANN used in this paper can be described as having an input layer, which is characterized by the variables of remote sensing, two hidden layers which are characterized through nonlinear activation functions and the third layer is the output layer which results in the estimation of rainfall. ANNs are practical to estimate nonlinear functions that are complex and describe the interactions between variables in the atmosphere [7] . They, however, do not explicitly represent time-dependent prognostication and depend on input vectors that are a fixed length, so lagged inputs are needed.

Support Vector Regression (SVR)

A kernel-based learner algorithm is known as SVR, which fits an optimum regression hyperplane, minimising structural risk. It is suitable for small to medium sized data sets and handles well high dimensional spaces. SVR is an effective model of nonlinear relationships between predictors based on satellite measurements of rainfall in monsoon forecasting [8] . The radial basis function (RBF) kernel is applied to encode complex interaction of features as well as regulate overfitting by using regularisation parameters.

"Select kernel and parameters Map input data to feature space Solve optimisation problem Construct regression function Return trained SVR model"

Random Forest (RF)

Random Forest is an ensemble learning method which builds upon bootstrapped and randomly selected decision trees. RF is also immune to noise, multicollinearity, and missing data and therefore, it works well with heterogeneous remote sensing data [9] . It gives the measures of feature importances which allow the interpretation provided on important drivers of variability of monsoon rainfall. In the long run, however, RF might not be good at extrapolating out of the range of training data.

"For i = 1 to N trees: Draw bootstrap sample Grow decision tree with random feature selection Aggregate predictions from all trees Return ensemble output"

Long Short-Term Memory (LSTM)

LSTM is a recurrent neural (RNN) network that is an architecture that is based on learning long term temporal dependencies. It makes use of memory cells and gating which control the flow of information, and solves the vanishing gradient issue of classic RNNs [10] . The effectiveness of LSTM in forecasting the rainfall of monsoons is associated with its capability to include intraseasonal oscillations, lagging atmospheric reaction, and cumulative impacts of the ocean-atmosphere interactions.

Model Training and Evaluation

The same dataset is used to train all models, and this is in order to compare them fairly. The grid search is used on the validation set to optimise the hyperparameters. Root Mean Square Error (RMSE), Mean Absolute Error (MAE) and coefficient of determination (R 2 ) are used to measure the model performance [11] .

Results and Analysis Experimental Design

The tests were performed by using a multi-year dataset that spans 20 monsoon seasons (20042023). The analysis area consists of grid cells dominated by monsoons in the Indian subcontinent. In order to guarantee temporal integrity, it was implemented as a rolling-origin evaluation plan, where all the models were trained on the past and evaluated using historical models on unseen future times [12] . This arrangement is similar to the real-life forecasting scenarios. Four ANN models namely Artificial Neural Network (ANN), Support Vector Regression (SVR) and random Forest (RF), as well as Long Short-Term Memory (LSTM) models were run in the same conditions of data and preprocessing. Short and medium range capabilities of forecasting were tested with the 1-day, 3-day and 7-day lead times. All the trials were run with the same computing machine to eliminate hardware bias. All these measures represent accuracy, predictive efficiency, bias, and variance explained.

Experiment 1: Overall Forecasting Accuracy

In the first experiment, the accuracy of the overall prediction of all the models in the 1-day lead-time rainfall prediction is evaluated. Results Interpretation: LSTM was much better on all metrics in comparison to other models and was shown to be highly effective at capturing nonlinear temporal dependencies that are related to monsoon rainfall. RF showed good competition and enjoyed the advantages of ensemble learning and good resistance to noisy satellite information [13] . ANN, and SVR demonstrated reasonable accuracy though they were worse than modelling temporal persistence.

Results Interpretation:

The characteristic of all the models was that with longer lead times, they predicted more error due to the uncertainty that is implicated with monsoon systems. Nevertheless, LSTM had the least degradation and acceptable accuracy still at 7-day lead time. This underscores its appropriateness in the long-range monsoon prediction and early warning purposes [14] .

Experiment 3: Phase-Wise Monsoon Performance

The nature of monsoon rainfall differs in terms of onset, active and withdrawal. In this experiment, the models are tested regarding their performance in various periods of monsoons.

Results Interpretation

During the stage of onset weather predictability was the most difficult since rainfall transitions were sudden and mesoscale convection as well. The LSTM was always best in all the phases especially in the active monsoons where the time dependence is the strongest [27] .

Experiment 4: Spatial Generalisation Analysis

In order to test spatial robustness, models were trained using one set of regions and tested using climatically similar but geographically different regions. Results Interpretation: LSTM showed the least performance decay, which shows superior performance in terms of generalisation by area. RF was also spatially robust as it was an ensemble nature. ANN and SVR were also more susceptible to geographical variation [28] .

Experiment 5: Comparison with Related Work:

The last experiment compares the proposed LSTM-based method to the meaningful results found in related studies that have been performed recently and use the same data and goals.

Results Interpretation

The proposed LSTM model shows an evident error decrease and variance account as opposed to the related work. Compared to hybrid AI-NWP systems, the suggested solution is based only on remote sensing and AI, which is computationally efficient and can be applied to the data sparse areas [29] .

Discussion of Results

The research findings support that when remote sensing data is used with the combination of advanced AI models, the accuracy of the monsoon rainfall forecasting significantly improves. The use of LSTM continuously demonstrated better results than ANN, SVR and RF because it was able to model long-term dependency and intraseasonal variability. RF offered a solid foundation of high interpretability whereas both the SVR and ANN demonstrated a weakness in their ability to process lengthy temporal sequences.

Relative to the comparable research, the framework proposed indicates recognizable advancement in foreseeing ability, especially with regards to extreme rain occurrences and prolonged lead-time [30] . The enhancements play a vital role in the monsoon-dependent areas in flood prediction, agricultural planning and management of climate risks. On the whole, the experiments confirm the usefulness of AIbased, satellite-based solutions as a potential and scalable alternative to the conventional forecasting algorithms, which leads to more precise and timely systems of monsoon forecasting.

Conclusion

In this study, it has been shown that a combination of remote sensing technologies, coupled with artificial intelligence, can be used to give a robust and scalable system of enhancing the monsoon rainfall forecasting. The study helps to overcome the main weaknesses of the conventional forecasting methods that are nonreliable due to the nonlinear and inherently dynamic nature of the monsoon systems using multi-source-satellite measurements that capture flavors of each process: atmosphere, ocean, and land surface. The experimental findings validate that AI models, especially deep learning networks, are much better than traditional machine learning techniques in terms of accuracy, temporal and spatial generalisation. The proposed scheme has a reduced prediction error, increased variance, and better functioning at various monsoon stages and lead time of a forecast. The benefits of data-driven, satellitebased techniques can be further observed in direct comparison with similar work, particularly in areas that have inadequate ground coverage. In contrast to computationally intensive numerical weather prediction models, the given methodology provides an effective alternative, which is able to provide a time-sensitive forecast and can assist the opposition of early warning against the occurrence of floods and extreme precipitation. In addition to the accuracy of predictions, the work shows the significance of incorporating different remote sensing cues and embracing improved methods of learning in order to model complex climate interactions. On the whole, this study is a valuable addition to the existing body of literature on the ability of AI-enabled climate prediction, as well as it is useful to develop more resilient and functional systems of monsoon prediction to increase disaster preparedness, agricultural planning, and management of water resources in monsoon regions.

Figures and tables from the paper

Table 1. Summary of Data Characteristics
Data TypeSourceSpatial ResolutionTemporal ResolutionSample Size
RainfallSatellite (IMERG)0.25° × 0.25°Daily7,300 days
SSTSatellite0.25° × 0.25°Daily7,300 days
Soil MoistureSatellite0.25° × 0.25°Daily6,500 days
Rain GaugeGround StationsPoint-basedDaily5,800 days

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Table 1
Summary of Data Characteristics

Summary of Data Characteristics

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Table 2. Model Performance Comparison (Testing Phase)
ModelRMSE (mm/day)MAE (mm/day)R²
ANN7.85.90.72
SVR7.25.40.75
RF6.64.90.79
LSTM5.84.20.85

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Table 2
Model Performance Comparison (Testing Phase)

Model Performance Comparison (Testing Phase)

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Table 3. Overall Model Performance (1-Day Lead Time)
ModelRMSE (mm/day)MAE (mm/day)MBE (mm/day)R²NSE
ANN7.85.9-0.420.720.70
SVR7.25.4-0.310.750.74
RF6.64.9-0.180.790.78
LSTM5.84.2-0.090.850.84

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Table 3
Overall Model Performance (1-Day Lead Time)

Overall Model Performance (1-Day Lead Time)

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Figure 1. “Artificial Intelligence-Based Precipitation Estimation Method Using Fengyun-4B Satellite Data”
“Artificial Intelligence-Based Precipitation Estimation Method Using Fengyun-4B Satellite Data”↗ Enlarge
Figure 1
“Artificial Intelligence-Based Precipitation Estimation Method Using Fengyun-4B Satellite Data”

“Artificial Intelligence-Based Precipitation Estimation Method Using Fengyun-4B Satellite Data”

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Table 4. RMSE Comparison across Lead Times
Model1-Day3-Day7-Day
ANN7.89.612.4
SVR7.29.111.7
RF6.68.510.9
LSTM5.87.49.6

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Table 4
RMSE Comparison across Lead Times

RMSE Comparison across Lead Times

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Table 5. Phase-Wise RMSE (mm/day)
ModelOnset PhaseActive PhaseWithdrawal Phase
ANN8.97.18.3
SVR8.26.87.7
RF7.56.27.1
LSTM6.65.46.3

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Phase-Wise RMSE (mm/day)

Phase-Wise RMSE (mm/day)

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Figure 2. “Artificial intelligence predicts normal summer monsoon rainfall”
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Figure 2
“Artificial intelligence predicts normal summer monsoon rainfall”

“Artificial intelligence predicts normal summer monsoon rainfall”

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Table 7. Comparison with Related Work
Study / ModelData TypeRMSE (mm/day)R²
Statistical Regression (2018)Gauge + Satellite9.80.61
ANN-Based Model (2020)Satellite Only8.40.68
RF-Based Model (2022)Multi-source RS6.90.77
Hybrid AI-NWP (2023)RS + NWP6.30.81
Proposed LSTM ModelMulti-source RS5.80.85

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Comparison with Related Work

Comparison with Related Work

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Table 6. Spatial Generalisation Performance
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Table 6
Spatial Generalisation Performance

Spatial Generalisation Performance

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Figure 3. “Performance Assessment of Global-EO-Based Precipitation Products against Gridded Rainfall from the Indian Meteorological
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Figure 3
“Performance Assessment of Global-EO-Based Precipitation Products against Gridded Rainfall from the Indian Meteorological

“Performance Assessment of Global-EO-Based Precipitation Products against Gridded Rainfall from the Indian Meteorological

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Figure 4. “Estimating Rainfall with Multi-Resource Data over East Asia Based on Machine Learning”
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“Estimating Rainfall with Multi-Resource Data over East Asia Based on Machine Learning”

“Estimating Rainfall with Multi-Resource Data over East Asia Based on Machine Learning”

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