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Using NASA satellite data, scientists have produced a first-of-its kind map that details the height of the world’s forests.


European Beech. Photo: Forestryimages.org/University of West Hungary/Norbert FrankEuropean Beech
Photo: Forestryimages.org/University of West Hungary/Norbert Frank

 Although there are other local-and regional-scale forest canopy maps, the new map is the first that spans the entire globe based on one uniform method.

The work - based on data collected by NASA's ICESat, Terra, and Aqua satellites - should help scientists build an inventory of how much carbon the world’s forests store and how fast that carbon cycles through ecosystems and back into the atmosphere. Michael Lefsky of the Colorado State University described his results in the journal Geophysical Research Letters.

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Massive land fill operation seems to be on in the Bellandur Lake bed area.

 Marking the exact location on the map.  It’s not really the lake itself, but the lake bed area on the right side of the bund/road adjoining the lake.

The agricultural land below the lake abutment forming the Bellandur Lake is being developed for residential / commercial use as the case may be. It is the present owners’ choice to convert agricultural land into residential / commercial purposes as it has now come within BBMP area. Some who may not like to convert have that choice too.

Bellandur lake, Bangalore - Landfill activity and hinterland development - Updates from Praja

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The Department of Mines and Geology, Government of Karnataka recently released a report on the hydrology and quality of groundwater in and around Bangalore city.


 A welcome and important document, it brings up-to-date our understanding of the rapidly changing groundwater situation in Bangalore.

Month New borewells added each month Borewells registered with BWSSB Monthly % growth
Jan-09   91018  
Feb-09 924 91942 1.02
Mar-09 705 92647 0.77
Apr-09 965 93612 1.04
May-09 1136 94748 1.21
Jun-09 748 95496 0.79
Jul-09 904 96400 0.95
Aug-09 868 97268 0.90
Sep-09 2062 99330 2.12
Oct-09 838 100168 0.84
Nov-09 875 101043 0.87
Dec-09 2699 103742 2.67
Jan-10 1759 105501 1.70
Total as on Jan-2010 14483 105501 15.91

Growth of bore wells during February 2009 to January 2010 in Bangalore city

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If you don’t have what you need, the only solution is to build it. The United States of America has its own National Hydrographic dataset for the complete nation.

The national hydrographic dataset can be used to delineate watersheds and mark all streams and channels that contribute to the flow at the outlets of these watersheds. Even though I was able to find out pdfs created by the National Information Center, I felt we need something better than the pdfs.

So if you don’t have what you need, the only solution is to build it. In order to make flow lines for a region all you need is the digital elevation model of the region and after following a sequence of steps, you will have your flow lines and watersheds delineated.

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Each summer, monsoon rains soak India and Bangladesh. In nearby Pakistan, the rains are usually less intense, more intermittent, and centred in the northeast.


Flooding forced millions of Pakistanis to flee their homes in July and August 2010.Flooding forced millions of Pakistanis to flee their homes in July and August 2010.

 

The summer of 2010 was different. In July and August, rain fell over most of Pakistan and persisted in some places for weeks.

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Monsoon rains fall on Pakistan every summer, but the summer of 2010 was extraordinary.

 

A combination of factors, including La Niña and a strange jet stream pattern, caused devastating floods. The Indus River rapidly rose, and a dam failure in Sindh Province sent part of the river down an alternate channel. The resulting floodwater lake lingered for months, leaving crops, roads, airports, even entire communities underwater.

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This report from Geospatial World presents an impact assessment of urbanization in the Indian city of Ranchi.

 Patterns of spatial and temporal urban changes have been analysed efficiently using spatial and temporal technologies such as Geographical Information Systems (GIS) and Remote Sensing (RS) along with collateral data such as Survey of India (SOI) maps, etc.

Ranchi

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This is a very modest first attempt by the Forum to spatially locate the important conflicts around water in India with the help of Google maps.

We are beginning this effort with the conflicts that we have already documented by the Forum. You could also contribute to this effort by sending in abstracts of conflict cases that you know. Send a write up of 250 words containing details like the location, conflicting parties, nature of the conflict and contact details of important contacts related to this conflict to Shruti Vispute at waterconflictforum@gmail.com.

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A resource database by MRSAC on 1:2,50,000 scale using GIS technique

This document by the Maharashtra Remote Sensing Applications Centre (MRSAC) presents the “Atlas on Watershed Prioritisation” using resources database on 1:2,50,000 scale adopting advanced techniques such as Remote Sensing and Geographic Information System (GIS).

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Pipal TreeOrganizer: Pipal Tree

Venue: Fireflies Inter-religious Ashram, Bangalore, India

February 16, 2011 3:00PM - February 19, 2011 3:00PM

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