Surface Water

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January 2, 2023 अनुपम मिश्र या हम सबके प्रिय पमपम पर पाँच साल पहले लिखा गया श्रवण गर्ग का यहआलेख है। अनुपम भी उनके द्वारा तलाशे गए तालाबों की तरह से ही खरे थे। अनुपम ने तो तालाबों को उनके दूर होते हुए भी खोज लिया । हम उन्हें अपने इतने नज़दीक होते हुए भी खोज नहीं पाए। 19 दिसम्बर को अनुपम की पुण्यतिथि थी।
अनुपम मिश्र, गांधी शांति प्रतिष्ठान में। फोटो - सिविल सोसाइटी, लक्ष्मण आनंद
January 1, 2023 Results show the impacts of agricultural productivity boosts in India can be highly heterogeneous
Buckingham canal near Kasturba Nagar, Adyar (Image: India Water Portal)
December 25, 2022 A study develops a prototype method by employing the remote sensing-based ecological index
rigorous post-implementation monitoring and impact assessment of assets is needed (Image: UN Women)
October 6, 2022 In an effort to inform the general public, especially citizen activists, policymakers, researchers, and students, about the current status of the Vrishabhavathi river, Paani.Earth has created the necessary maps, data, analysis, and information to drive conservation awareness and action around the river.
Vrishabhavathi river (Image Source: Paani.Earth)
August 9, 2022 Ensuring irrigation through farm ponds in tribal Chhattisgarh
Many tribal farmers opted for individual farm ponds under MGNREGA ensuring protective irrigation. (Image: Meenakshi Singh)
November 8, 2020 The National Hydrology Project has created a national platform for water data and is working to enhance the technical capacities of agencies dealing with water resources management.
Breakthrough cloud computing facilities and remote sensing applications have helped showthe filling pattern of a water body (tank or reservoir) through freely available satellite imagery at an interval of five days.  (Image: Maithan dam, Wikimedia Commons)
Calibration of a catchment model using Shuffled Complex Evolution Algorithm (SCE-UA) - A research report by National Institute of Hydrology
The study attempts to apply the Shuffled Complex Evolution Algorithm (SCE-UA) of Duan et al for the calibration of a Conceptual Rainfall Runoff (CRR) model. Posted on 29 Jun, 2010 12:17 AM

The study attempts to apply the Shuffled Complex Evolution Algorithm (SCE-UA) of Duan et al for the calibration of a Conceptual Rainfall Runoff (CRR) model. CRR modeling lies intermediate between physically based models and black box models. 

Development of data simulation model and irrigation schedules for Eastern Godavari delta (Andhra Pradesh) - A research report by National Institute of Hydrology
The study has been conducted to develop a data simulation model and irrigation schedules for the eastern Godavari delta irrigation system, Andhra Pradesh. Posted on 28 Jun, 2010 11:45 PM

The study has been conducted to develop a data simulation model and irrigation schedules for the eastern Godavari delta irrigation system, Andhra Pradesh. It aims at analysis of various factors that influence the irrigation operations and development of appropriate mathematical models and associated computer programs.

Modeling at Vasishta-Godavari river mouth using FESWMS – A research report by National Institute of Hydrology
The study attempts to undertake surface modeling to simulate the water levels in the mouth portion of Vasishta-Godavari by taking the tidal effect during a flood season using FESMWS. Posted on 28 Jun, 2010 10:54 PM

The study attempts to undertake surface modeling to simulate the water levels in the mouth portion of Vasishta-Godavari by taking the tidal effect during a flood season, by using the Finite Element Surface Water Modeling System (FESMWS) developed by United States Geological Survey (USGS) to model the reach. The objective is to simulate the surface water flow for a flood discharge of 2.35 lakh cusecs, under the effect of diurnal tide at the bay end.

The surface water levels of a river, especially at the mouth are required for planning and managing flood alleviation schemes and river engineering works. In the lower reaches of many rivers, flood plain inundation may result from very high tide or a very high flood or a combination of both. Also the extent of landward intrusion of saline water into a river at mouth varies with the relative strength of freshwater discharge and the co-oscillating tidal flow resulting from the dynamical interaction of the adjacent coastal waters.

Geomorphological study of Myntdu river basin – A research report by National Institute of Hydrology
In the study, the hydrogeomorphological parameters of Myntdu basin, Meghalaya, have been estimated from a digitized basin map. Posted on 28 Jun, 2010 09:38 PM

In the study, the hydrogeomorphological parameters of Myntdu basin have been estimated from a digitized basin map where basic map data could be retrieved and manipulated quickly and accurately. The estimated geomorphological parameters of the basin covering linear, areal and relief aspects will be helpful in estimating and modeling the flow process in the basin.

Application of TOPMODEL to Malaprabha catchment – A research report by National Institute of Hydrology
The study applies TOPMODEL (Topography Model) to the Malaprabha catchment of Krishna river basin in Karnataka to simulate the daily flows at Khanapur site. Posted on 28 Jun, 2010 09:18 PM

The study applies TOPMODEL (Topography Model) to the Malaprabha catchment of Krishna river basin in Karnataka to simulate the daily flows at Khanapur site. The catchment area of Malaprabha up to discharge measuring site Khanapur is 520 sqkm. The model uses topographic index for the formation of runoff through development of a Digital Elevation Model (DEM) by interpolating the contours in the basin at 300 m grid size.

Arsenic pollution in groundwater in West Bengal – A research report by National Institute of Hydrology
The report describes the results of the study of arsenic pollution in groundwater in Nadia as well as the hydro-chemical study of the river Hoogly in West Bengal. Posted on 28 Jun, 2010 09:08 PM

The report describes the results of the study of arsenic pollution in groundwater in Nadia as well as the hydro-chemical study of the river Hoogly in West Bengal. The alluvial tract along the river Hoogly covering a stretch of around 470 km encompassing eight districts is affected by arsenic pollution of ground water, the source being geogenic.

Software for reservoir analysis – A research report by National Institute of Hydrology
The report describes a software developed by NIH for reservoir analysis in view of the operational problem and the non-availability of generalized software for reservoir analysis. Posted on 28 Jun, 2010 05:14 PM

The report describes a software developed by the National Institute of Hydrology (NIH) for reservoir analysis in view of the importance of reservoir operation problem in the Indian context and the non-availability of generalized software for reservoir analysis.

Study of recharge to groundwater due to monsoon rains using Tritium tagging in parts of Narsinghpur – A research report by National Institute of Hydrology
The study attempts to estimate the recharge to groundwater due to rainfall and irrigation using tritium tagging techniques in parts of the Narmada catchment in Madhya Pradesh. Posted on 28 Jun, 2010 04:48 PM

The study attempts to estimate the recharge to groundwater due to rainfall and irrigation using tritium tagging techniques in parts of Narsinghpur district under the Narmada catchment in Madhya Pradesh. The estimation of recharge to groundwater is crucial to better water resources management, particularly in arid and semi-arid regions.

Single column hydrologic simulation using SHE models - A research report by National Institute of Hydrology
The article is about the European Hydrological System which is physically based distributed model and helps in understanding the importance of evaporation data and soil parameters. Posted on 27 Jun, 2010 10:31 PM

The Systems Hydrologique European – European Hydrological System (SHE) is a physically based distributed model and it provides a useful setup for understanding the importance of evaporation data and soil parameters. 

In this study, single column hydrologic simulations have been carried out for examining the sensitivity of this model to pan evaporation data of the various stations as well as the increase in conductivity of the unsaturated zone. Furthermore, the reduction in the value of exponent appearing in the Averjanov’s formula and reduction in the values of moisture content at wilting point and residual water content has been studied for a single grid of 2 km X 2 km size of the Narmada river.

Effect of channel characteristics on flood wave propagation - A research report by National Institute of Hydrology
This study attempts to explain flood wave propagation in natural and artificial channels within the perspective of site-specific rating curve. Posted on 27 Jun, 2010 08:06 PM

The study attempts to explain flood wave propagation in natural and artificial channels within the perspective of site-specific rating curve. The study looks at the impacts of channel characteristics – bed slope, flood plains, channel shape, expansion-contraction combination, inactive storage, Manning’s roughness, expansion and contraction on flood wave propagation.

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