NDLI: Comparison of C-Band Quad-Polarization Synthetic Aperture Radar Wind Retrieval Models

Please wait, while we are loading the content...

Year: 2022, Volume: 14

Year: 2021, Volume: 14

Year: 2021, Volume: 13

Year: 2020, Volume: 13

Year: 2020, Volume: 12

Year: 2019, Volume: 12

Year: 2019, Volume: 11

Year: 2018, Volume: 11

Year: 2018, Volume: 10

An Improved Digital Elevation Model of the Lunar Mons Rümker Region Based on Multisource Altimeter Data

Land Surface Temperature and Urban Density: Multiyear Modeling and Relationship Analysis Using MODIS and Landsat Data

High-Resolution Forest Mapping from TanDEM-X Interferometric Data Exploiting Nonlocal Filtering

Forest Variable Estimation Using a High Altitude Single Photon Lidar System

Hyperspectral Target Detection via Adaptive Information—Theoretic Metric Learning with Local Constraints

Extracting Building Boundaries from High Resolution Optical Images and LiDAR Data by Integrating the Convolutional Neural Network and the Active Contour Model

Drought-Induced Reduction in Net Primary Productivity across Mainland China from 1982 to 2015

Monitoring of Thermal Activity at the Hatchobaru–Otake Geothermal Area in Japan Using Multi-Source Satellite Images—With Comparisons of Methods, and Solar and Seasonal Effects

Tracking Fine-Scale Structural Changes in Coastal Dune Morphology Using Kite Aerial Photography and Uncertainty-Assessed Structure-from-Motion Photogrammetry

Mapping High Mountain Lakes Using Space-Borne Near-Nadir SAR Observations

Improved Detection of Tiny Macroalgae Patches in Korea Bay and Gyeonggi Bay by Modification of Floating Algae Index

3D Point Cloud Semantic Modelling: Integrated Framework for Indoor Spaces and Furniture

Sensitivity of Sentinel-1 Backscatter to Vegetation Dynamics: An Austrian Case Study

Potential of Cost-Efficient Single Frequency GNSS Receivers for Water Vapor Monitoring

UAV Remote Sensing for Biodiversity Monitoring: Are Forest Canopy Gaps Good Covariates?

Effects of Spatiotemporal Filtering on the Periodic Signals and Noise in the GPS Position Time Series of the Crustal Movement Observation Network of China

Estimation of Rice Height and Biomass Using Multitemporal SAR Sentinel-1 for Camargue, Southern France

Joint SAR Image Time Series and PSInSAR Data Analytics: An LDA Based Approach

Seismological Observations of Ocean Swells Induced by Typhoon Megi Using Dispersive Microseisms Recorded in Coastal Areas

Assessing the Variability of Corn and Soybean Yields in Central Iowa Using High Spatiotemporal Resolution Multi-Satellite Imagery

3D Façade Labeling over Complex Scenarios: A Case Study Using Convolutional Neural Network and Structure-From-Motion

Comparison of C-Band Quad-Polarization Synthetic Aperture Radar Wind Retrieval Models

FVI—A Floating Vegetation Index Formed with Three Near-IR Channels in the 1.0–1.24 μm Spectral Range for the Detection of Vegetation Floating over Water Surfaces

Image Segmentation Parameter Selection and Ant Colony Optimization for Date Palm Tree Detection and Mapping from Very-High-Spatial-Resolution Aerial Imagery

Deformable Faster R-CNN with Aggregating Multi-Layer Features for Partially Occluded Object Detection in Optical Remote Sensing Images

Mapping Individual Tree Species and Vitality along Urban Road Corridors with LiDAR and Imaging Sensors: Point Density versus View Perspective

Modelling the L-Band Snow-Covered Surface Emission in a Winter Canadian Prairie Environment

Remotely Estimating Beneficial Arthropod Populations: Implications of a Low-Cost Small Unmanned Aerial System

Evaluation of Different Machine Learning Algorithms for Scalable Classification of Tree Types and Tree Species Based on Sentinel-2 Data

Evaluation of Semi-Analytical Algorithms to Retrieve Particulate and Dissolved Absorption Coefficients in Gulf of California Optically Complex Waters

DEM Generation from Multi Satellite PlanetScope Imagery

Imaging Simulation for Synthetic Aperture Radar: A Full-Wave Approach

Observing Water Vapour in the Planetary Boundary Layer from the Short-Wave Infrared

Reducing the Uncertainty of Lidar Measurements in Complex Terrain Using a Linear Model Approach

Detecting Building Edges from High Spatial Resolution Remote Sensing Imagery Using Richer Convolution Features Network

Can Multispectral Information Improve Remotely Sensed Estimates of Total Suspended Solids? A Statistical Study in Chesapeake Bay

Improving Data Quality for the Australian High Frequency Ocean Radar Network through Real-Time and Delayed-Mode Quality-Control Procedures

Investigation of the Fetch Effect Using Onshore and Offshore Vertical LiDAR Devices

Mapping Mangrove Extent and Change: A Globally Applicable Approach

Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States

Underground Object Classification for Urban Roads Using Instantaneous Phase Analysis of Ground-Penetrating Radar (GPR) Data

Long-Term Changes in Water Clarity in Lake Liangzi Determined by Remote Sensing

Evaluating the Performance of Sentinel-2, Landsat 8 and Pléiades-1 in Mapping Mangrove Extent and Species

MiRTaW: An Algorithm for Atmospheric Temperature and Water Vapor Profile Estimation from ATMS Measurements Using a Random Forests Technique

Applications of DINEOF to Satellite-Derived Chlorophyll-a from a Productive Coastal Region

Method Combining Probability Integration Model and a Small Baseline Subset for Time Series Monitoring of Mining Subsidence

Using APAR to Predict Aboveground Plant Productivity in Semi-Aid Rangelands: Spatial and Temporal Relationships Differ

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

Irrigation Mapping Using Sentinel-1 Time Series at Field Scale

Deep Convolutional Neural Networks for Automated Characterization of Arctic Ice-Wedge Polygons in Very High Spatial Resolution Aerial Imagery

Mesoscale Resolution Radar Data Assimilation Experiments with the Harmonie Model

WeedMap: A Large-Scale Semantic Weed Mapping Framework Using Aerial Multispectral Imaging and Deep Neural Network for Precision Farming

Assessment of Forest above Ground Biomass Estimation Using Multi-Temporal C-band Sentinel-1 and Polarimetric L-band PALSAR-2 Data

Remote Sensing of Antarctic Glacier and Ice-Shelf Front Dynamics—A Review

Component Analysis of Errors in Four GPM-Based Precipitation Estimations over Mainland China

Surface Moisture and Vegetation Cover Analysis for Drought Monitoring in the Southern Kruger National Park Using Sentinel-1, Sentinel-2, and Landsat-8

A 55-Year Time Series Station for Primary Production in the Adriatic Sea: Data Correction, Extraction of Photosynthesis Parameters and Regime Shifts

Source Model and Stress Disturbance of the 2017 Jiuzhaigou Mw 6.5 Earthquake Constrained by InSAR and GPS Measurements

Validation of Aerosol Products from AATSR and MERIS/AATSR Synergy Algorithms—Part 1: Global Evaluation

Wind Direction Inversion from Narrow-Beam HF Radar Backscatter Signals in Low and High Wind Conditions at Different Radar Frequencies

Scale Matters: Spatially Partitioned Unsupervised Segmentation Parameter Optimization for Large and Heterogeneous Satellite Images

Deep&Dense Convolutional Neural Network for Hyperspectral Image Classification

A Microwave Tomography Strategy for Underwater Imaging via Ground Penetrating Radar

Capturing the Diurnal Cycle of Land Surface Temperature Using an Unmanned Aerial Vehicle

Development of Raman Lidar for Remote Sensing of CO2 Leakage at an Artificial Carbon Capture and Storage Site

Satellite-Based Water Consumption Dynamics Monitoring in an Extremely Arid Area

Comment on Tompalski et al. Combining Multi-Date Airborne Laser Scanning and Digital Aerial Photogrammetric Data for Forest Growth and Yield Modelling. Remote Sens. 2018, 10, 347

Quantitative Responses of Satellite-Derived Nighttime Lighting Signals to Anthropogenic Land-Use and Land-Cover Changes across China

Thermal Imaging for the Archaeological Investigation of Historic Buildings

Mapping Inter-Annual Land Cover Variations Automatically Based on a Novel Sample Transfer Method

Economic Assessment of Fire Damage to Urban Forest in the Wildland–Urban Interface Using Planet Satellites Constellation Images

Recent Progress and Developments in Imaging Spectroscopy

Time-Varying SAR Interference Suppression Based on Delay-Doppler Iterative Decomposition Algorithm

Investigation of Ground Deformation in Taiyuan Basin, China from 2003 to 2010, with Atmosphere-Corrected Time Series InSAR

Supervised Classification of Multisensor Remotely Sensed Images Using a Deep Learning Framework

Reply to Vauhkonen: Comment on Tompalski et al. Combining Multi-Date Airborne Laser Scanning and Digital Aerial Photogrammetric Data for Forest Growth and Yield Modelling. Remote Sens. 2018, 10, 347

Monitoring and Analysis of Surface Deformation in Mining Area Based on InSAR and GRACE

Determining Subarctic Peatland Vegetation Using an Unmanned Aerial System (UAS)

Hyperspectral Image Classification Based on Parameter-Optimized 3D-CNNs Combined with Transfer Learning and Virtual Samples

Mapping Maize Evapotranspiration at Field Scale Using SEBAL: A Comparison with the FAO Method and Soil-Plant Model Simulations

Comparison of Three Methods for Estimating Land Surface Temperature from Landsat 8-TIRS Sensor Data

Recovery Rates of Wetland Vegetation Greenness in Severely Burned Ecosystems of Alaska Derived from Satellite Image Analysis

Recent Progress in Quantitative Land Remote Sensing in China

Assessing L-Band GNSS-Reflectometry and Imaging Radar for Detecting Sub-Canopy Inundation Dynamics in a Tropical Wetlands Complex

Dynamics of Permafrost Coasts of Baydaratskaya Bay (Kara Sea) Based on Multi-Temporal Remote Sensing Data

Monitoring the Impact of Land Cover Change on Surface Urban Heat Island through Google Earth Engine: Proposal of a Global Methodology, First Applications and Problems

Potential of Red Edge Spectral Bands in Future Landsat Satellites on Agroecosystem Canopy Green Leaf Area Index Retrieval

Monitoring Retreat of Coastal Sandy Systems Using Geomatics Techniques: Somo Beach (Cantabrian Coast, Spain, 1875–2017)

Estimation of Methane Emissions from Rice Paddies in the Mekong Delta Based on Land Surface Dynamics Characterization with Remote Sensing

Investigations on the Coregistration of Sentinel-1 TOPS with the Conventional Cross-Correlation Technique

Analyzing the Effect of Fluorescence Characteristics on Leaf Nitrogen Concentration Estimation

Zero Deforestation Agreement Assessment at Farm Level in Colombia Using ALOS PALSAR

In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)

The Potential of Spectral Indices in Detecting Various Stages of Afforestation over the Loess Plateau Region of China

Harnessing the Temporal Dimension to Improve Object-Based Image Analysis Classification of Wetlands

BULC-U: Sharpening Resolution and Improving Accuracy of Land-Use/Land-Cover Classifications in Google Earth Engine

Evaluating a Static Multibeam Sonar Scanner for 3D Surveys in Confined Underwater Environments

A Geographically Weighted Regression Analysis of the Underlying Factors Related to the Surface Urban Heat Island Phenomenon

Multi-Stream Convolutional Neural Network for SAR Automatic Target Recognition

Remote Sensing of Leaf and Canopy Nitrogen Status in Winter Wheat (Triticum aestivum L.) Based on N-PROSAIL Model

Combining UAV-Based Vegetation Indices and Image Classification to Estimate Flower Number in Oilseed Rape

A Super-Resolution and Fusion Approach to Enhancing Hyperspectral Images

Road Extraction from High-Resolution Remote Sensing Imagery Using Deep Learning

Exploring the Inclusion of Small Regenerating Trees to Improve Above-Ground Forest Biomass Estimation Using Geospatial Data

Mapping Population Distribution from High Resolution Remotely Sensed Imagery in a Data Poor Setting

Sea Surface Temperature (SST) Variability of the Eastern Coastal Zone of the Gulf of California

JAXA High-Resolution Land Use/Land Cover Map for Central Vietnam in 2007 and 2017

Remote Sensing Approach to Detect Burn Severity Risk Zones in Palo Verde National Park, Costa Rica

Evaluation of the Stability of the Darbandikhan Dam after the 12 November 2017 Mw 7.3 Sarpol-e Zahab (Iran–Iraq Border) Earthquake

Impact of Radiance Data Assimilation on the Prediction of Heavy Rainfall in RMAPS: A Case Study

Cross-Pol Transponder with Frequency Shifter for Bistatic Ground-Based Synthetic Aperture Radar

Contribution of Land Surface Temperature (TCI) to Vegetation Health Index: A Comparative Study Using Clear Sky and All-Weather Climate Data Records

Hurricane Maria in the U.S. Caribbean: Disturbance Forces, Variation of Effects, and Implications for Future Storms

In-Situ and Remote Sensing Platforms for Mapping Fine-Fuels and Fuel-Types in Sonoran Semi-Desert Grasslands

Evaluation of PROBA-V Collection 1: Refined Radiometry, Geometry, and Cloud Screening

Simulation of Bidirectional Reflectance in Broken Clouds: From Individual Realization to Averaging over an Ensemble of Cloud Fields

Validation of CryoSat-2 SARIn Data over Austfonna Ice Cap Using Airborne Laser Scanner Measurements

Comparing the Performance of Neural Network and Deep Convolutional Neural Network in Estimating Soil Moisture from Satellite Observations

Using SAR-Derived Vegetation Descriptors in a Water Cloud Model to Improve Soil Moisture Retrieval

Integration of Terrestrial and Drone-Borne Hyperspectral and Photogrammetric Sensing Methods for Exploration Mapping and Mining Monitoring

An Evaluation of MODIS-Retrieved Aerosol Optical Depth over AERONET Sites in Alaska

Mapping Mangrove Forests Based on Multi-Tidal High-Resolution Satellite Imagery

On the Very High-Resolution Radar Image Statistics of the Exponentially Correlated Rough Surface: Experimental and Numerical Studies

Unsupervised Change Detection Using Fast Fuzzy Clustering for Landslide Mapping from Very High-Resolution Images

Framework for Mapping Integrated Crop-Livestock Systems in Mato Grosso, Brazil

Benefits of the Successive GPM Based Satellite Precipitation Estimates IMERG–V03, –V04, –V05 and GSMaP–V06, –V07 Over Diverse Geomorphic and Meteorological Regions of Pakistan

An Empirical Algorithm to Retrieve Significant Wave Height from Sentinel-1 Synthetic Aperture Radar Imagery Collected under Cyclonic Conditions

A Forest Attribute Mapping Framework: A Pilot Study in a Northern Boreal Forest, Northwest Territories, Canada

A Speckle Filtering Method Based on Hypothesis Testing for Time-Series SAR Images

Analysis Ready Data: Enabling Analysis of the Landsat Archive

Assessment of Aquarius Sea Surface Salinity

Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR's Experimental TET-1 Satellite

Remote Sensing Derived Built-Up Area and Population Density to Quantify Global Exposure to Five Natural Hazards over Time

A Prediction Smooth Method for Blending Landsat and Moderate Resolution Imagine Spectroradiometer Images

Development of Shoreline Extraction Method Based on Spatial Pattern Analysis of Satellite SAR Images

Improved MODIS-Aqua Chlorophyll-a Retrievals in the Turbid Semi-Enclosed Ariake Bay, Japan

Numerical Analysis of Microwave Scattering from Layered Sea Ice Based on the Finite Element Method

Integrated Analyses of PALSAR and Landsat Imagery Reveal More Agroforests in a Typical Agricultural Production Region, North China Plain

Effects of Forest Canopy Vertical Stratification on the Estimation of Gross Primary Production by Remote Sensing

An Analysis of Factors Influencing the Relationship between Satellite-Derived AOD and Ground-Level PM10

A Multiple-Feature Reuse Network to Extract Buildings from Remote Sensing Imagery

Assessing the Resilience of Coastal Wetlands to Extreme Hydrologic Events Using Vegetation Indices: A Review

Land-Use Carbon Emissions Estimation for the Yangtze River Delta Urban Agglomeration Using 1994–2016 Landsat Image Data

“Regression-then-Fusion” or “Fusion-then-Regression”? A Theoretical Analysis for Generating High Spatiotemporal Resolution Land Surface Temperatures

Airborne and Terrestrial Laser Scanning Data for the Assessment of Standing and Lying Deadwood: Current Situation and New Perspectives

Estimation of River Discharge Solely from Remote-Sensing Derived Data: An Initial Study Over the Yangtze River

Noise Removal Based on Tensor Modelling for Hyperspectral Image Classification

The Offset-Compensated Nonlocal Filtering of Interferometric Phase

Sentinel-1 SAR Interferometry for Surface Deformation Monitoring in Low-Land Permafrost Areas

Analysis of Landsat-8 OLI Imagery for Estimating Exposed Bedrock Fractions in Typical Karst Regions of Southwest China Using a Karst Bare-Rock Index

Antarctic Snowmelt Detected by Diurnal Variations of AMSR-E Brightness Temperature

How Long should the MISR Record Be when Evaluating Aerosol Optical Depth Climatology in Climate Models?

Multifrequency and Full-Polarimetric SAR Assessment for Estimating Above Ground Biomass and Leaf Area Index in the Amazon Várzea Wetlands

ERN: Edge Loss Reinforced Semantic Segmentation Network for Remote Sensing Images

An Improved Method for Impervious Surface Mapping Incorporating LiDAR Data and High-Resolution Imagery at Different Acquisition Times

Integration of Low-Resolution ALS and Ground-Based SfM Photogrammetry Data. A Cost-Effective Approach Providing an 'Enhanced 3D Model' of the Hound Tor Archaeological Landscapes (Dartmoor, South-West England)

Statistical Machine Learning Methods and Remote Sensing for Sustainable Development Goals: A Review

Evaluating the Potential of ALS Data to Increase the Efficiency of Aboveground Biomass Estimates in Tropical Peat–Swamp Forests

A Hierarchical Association Framework for Multi-Object Tracking in Airborne Videos

Transferability and Upscaling of Fuzzy Classification for Shoreline Change over 30 Years

Estimating Fire Background Temperature at a Geostationary Scale—An Evaluation of Contextual Methods for AHI-8

Assessment of MODIS, OMI, MISR and CALIOP Aerosol Products for Estimating Surface Visual Range: A Mathematical Model for Hong Kong

Toward Long-Term Aquatic Science Products from Heritage Landsat Missions

Estimation of Terrestrial Global Gross Primary Production (GPP) with Satellite Data-Driven Models and Eddy Covariance Flux Data

HIRS Outgoing Longwave Radiation—Daily Climate Data Record: Application toward Identifying Tropical Subseasonal Variability

Merging Unmanned Aerial Systems (UAS) Imagery and Echo Soundings with an Adaptive Sampling Technique for Bathymetric Surveys

An Improved Spatial and Temporal Reflectance Unmixing Model to Synthesize Time Series of Landsat-Like Images

Variation of Net Primary Production and Its Correlation with Climate Change and Anthropogenic Activities over the Tibetan Plateau

Mapping and Classification of Ecologically Sensitive Marine Habitats Using Unmanned Aerial Vehicle (UAV) Imagery and Object-Based Image Analysis (OBIA)

Co-Seismic and Postseismic Fault Models of the 2018 Mw 6.4 Hualien Earthquake Occurred in the Junction of Collision and Subduction Boundaries Offshore Eastern Taiwan

Consistent Calibration of VIRR Reflective Solar Channels Onboard FY-3A, FY-3B, and FY-3C Using a Multisite Calibration Method

Visualizing the Spatiotemporal Trends of Thermal Characteristics in a Peatland Plantation Forest in Indonesia: Pilot Test Using Unmanned Aerial Systems (UASs)

Estimation of Size-Fractionated Primary Production from Satellite Ocean Colour in UK Shelf Seas

Quality Improvement of Satellite Soil Moisture Products by Fusing with In-Situ Measurements and GNSS-R Estimates in the Western Continental U.S.

A Review of Ten-Year Advances of Multi-Baseline SAR Interferometry Using TerraSAR-X Data

RDCRMG: A Raster Dataset Clean & Reconstitution Multi-Grid Architecture for Remote Sensing Monitoring of Vegetation Dryness

Observations and Recommendations for the Calibration of Landsat 8 OLI and Sentinel 2 MSI for Improved Data Interoperability

Determination of Soil Salt Content Using a Probability Neural Network Model Based on Particle Swarm Optimization in Areas Affected and Non-Affected by Human Activities

Temporal Means and Variability of Arctic Sea Ice Melt and Freeze Season Climate Indicators Using a Satellite Climate Data Record

Year: 2017, Volume: 10

Year: 2017, Volume: 9

Year: 2016, Volume: 9

Year: 2016, Volume: 8

Year: 2015, Volume: 8

Year: 2015, Volume: 7

Year: 2014, Volume: 7

Year: 2014, Volume: 6

Year: 2013, Volume: 6

Year: 2013, Volume: 5

Comparison of C-Band Quad-Polarization Synthetic Aperture Radar Wind Retrieval Models

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Jingsong Yang Yijun He He Fang Tao Xie William Perrie Guosheng Zhang
Abstract	This work discusses the accuracy of C-2PO (C-band cross-polarized ocean backscatter) and CMOD4 (C-band model) geophysical model functions (GMF) for sea surface wind speed retrieval from satellite-born Synthetic Aperture Radar (SAR) images over in the Northwest Pacific off the coast of China. In situ observations are used for comparison of the retrieved wind speed using two established wind retrieval models: C-2PO model and CMOD4 GMF. Using 439 samples from 92 RADARSAT-2 fine quad-polarization SAR images and corresponding reference winds, we created two subset wind speed databases: the training and testing subsets. From the training data subset, we retrieve ocean surface wind speeds (OSWSs) from different models at each polarization and compare with reference wind speeds. The RMSEs of SAR-retrieved wind speeds are: 2.5 m/s: 2.11 m/s (VH-polarized), 2.13 m/s (HV-polarized), 1.86 m/s (VV-polarized) and 2.26 m/s (HH-polarized) and the correlation coefficients are 0.86 (VH-polarized), 0.85(HV-polarized), 0.87(VV-polarized) and 0.83 (HH-polarized), which are statistically significant at the 99.9% significance level. Moreover, we found that OSWSs retrieved using C-2PO model at VH-polarized are most suitable for moderate-to-high winds while CMOD4 GMF at VV-polarized tend to be best for low-to-moderate winds. A hybrid wind retrieval model is put forward composed of the two models, C-2PO and CMOD4 and sets of SAR test data are used in order to establish an appropriate wind speed threshold, to differentiate the wind speed range appropriate for one model from that of the other. The results show that the OSWSs retrieved using our hybrid method has RMSE of 1.66 m/s and the correlation coefficient are 0.9, thereby significantly outperforming both the C-2PO and CMOD4 models.
e-ISSN	20724292
DOI	10.3390/rs10091448
Journal	Remote Sensing
Issue Number	9
Volume Number	10
Language	English
Publisher	MDPI AG
Publisher Date	2018-09-01
Publisher Place	Switzerland
Access Restriction	Open
Subject Keyword	Science Ocean Surface Wind Speed Retrieval Synthetic Aperture Radar (sar) Quad-polarized Sar
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in