Monday, March 27, 2023

Geomatics: An Intro


Geomatics: An Intro


Geomatics is an interdisciplinary field that combines the principles of surveying, mapping, remote sensing, and Geographic Information Systems (GIS) to study, measure, and manage spatial data. Geomatics is a rapidly growing field that has revolutionized the way we understand and interact with our environment. In this article, we will provide an introduction to Geomatics and discuss its importance in various industries.

Geomatics has been around for centuries, with early forms of surveying and mapping dating back to ancient times. However, the last 30 years have seen significant advancements in technology, which have led to the development of new tools and techniques that have transformed the field. The widespread use of computers, satellites, and advanced sensors has made it possible to collect and analyze vast amounts of spatial data, which has led to a deeper understanding of the Earth's surface and its natural resources.

One of the most important applications of geomatics is in the field of urban planning. The use of GIS and remote sensing tools has made it possible to create detailed maps and models of cities, which can be used to plan and manage urban infrastructure, transportation networks, and environmental resources. Geomatics has also played a critical role in disaster management and response, allowing emergency responders to quickly assess the extent of damage caused by natural disasters and develop effective relief strategies.

Another area where geomatics has had a significant impact is in the field of agriculture. Farmers can now use precision agriculture techniques, which involve the use of sensors and GPS technology to monitor crop growth, soil moisture levels, and nutrient content. This has led to more efficient use of resources, reduced environmental impact, and increased crop yields.

In the mining industry, geomatics is used to map and analyze mineral deposits, helping companies to identify areas with high mineral potential and plan mining operations more effectively. In the energy industry, geomatics is used to map and monitor pipelines, power transmission lines, and renewable energy resources such as wind and solar power.

Geomatics has also transformed the way we study the environment, with the ability to collect and analyze large amounts of data on everything from climate patterns to wildlife populations. This data can be used to create models and simulations that help us understand the impact of human activity on the environment and develop effective strategies to mitigate the effects of climate change.

In conclusion, Geomatics is a rapidly evolving field that has revolutionized the way we understand and interact with our environment. It is a multidisciplinary field that combines the principles of surveying, mapping, remote sensing, and GIS to study, measure, and manage spatial data. Over the last 30 years, advancements in technology have led to the development of new tools and techniques, which have transformed the field and allowed us to collect and analyze vast amounts of spatial data. Geomatics has important applications in various industries, including urban planning, agriculture, mining, energy, and environmental management. With continued advancements in technology, the field of Geomatics is expected to grow and have an even greater impact on society in the coming years.

Geomatics is the study of the measurement, analysis, and management of spatial data, while geospatial technology is the field that involves the use of various tools and techniques to collect, analyze, and manage spatial data.

GIS (Geographic Information System) is a computer-based tool that allows users to analyze and manipulate spatial data, while Remote Sensing involves the use of sensors to collect data about the Earth's surface from a distance.

#GeomaticsExplained #SpatialDataAnalysis #GISMapping #RemoteSensingTechnology #PrecisionAgriculture #UrbanPlanningTools #EnvironmentalManagement #DisasterResponse #MiningOperations #EnergyIndustry #ClimateChangeMitigation #NaturalResourceManagement #GeospatialTechnology #SpatialDataCollection #AdvancedSensors #SatelliteTechnology #GeographicInformationSystems #SpatialDataVisualization #EnvironmentalModeling #SustainableDevelopmentGoals 

Declaimer: This article was generated by ChatGPT, a large language model from OpenAI. The information in this article is for general informational purposes only and should not be considered to be a substitute for professional advice.

I, Tri Dev Acharya, do not make any representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the information. Any reliance you place on this information is strictly at your own risk. I will not be liable for any loss or damage arising from the use of this article or any links provided.


Wednesday, December 27, 2017

Nepal Census Data 2001

The census data presented here were extracted from the National Census of Nepal 2001 CD which was produced by the Central Bureau of Statistics of His Majesty's Government of Nepal. The Digital Himalaya team used Microsoft Excel to sort census data for Nepal's 75 districts down to the Village Development Committee (VDC) level, of which they are over 3,900. Through the simple interface provided below, the findings of the 2001 Census of Nepal can be searched and downloaded in one of four standard formats. 
Download Census Data of NEPAL 2001
Using this 3-step tool you can select a data set from the 2001 Census of Nepal of a number of different classes (e.g. marital status, economic activity, literacy, etc.) for each of Nepal's Village Development Committees and download the results in one of four standard formats (Excel, PDF, Text, HTML).

Tuesday, August 19, 2014

Sunkoshi Landslide from Satellites

Map of Sunkoshi landslide dammed lake prepared using GeoEye of as of August 5, 2014

Map of Sunkoshi landslide dammed lake prepared using Landsat 7 of as of August 9, 2014

Thursday, August 18, 2011

List of Free Downloadable Dataset !!!

ORNL DAAC OGC Standards-based Geospatial Data Visualization/Download

Website:
Category:
Biogeochemical dynamics
Coverage:
Global
Comment:
The ORNL DAAC provides access to various geospatial data, including ORNL DAAC archived data through Open Geospatial Consortium (OGC) standards-based Web Services (Web Map Service and Web Coverage Service). OGC services allow users to select the spatial extent, format, projection and resolution of the data to be previewed and/or downloaded.

High Resolution Gridded Datasets 10' resolution (~18km)
Mean precipiation, mean temperature, wet days, relative humidity, 10m wind speed, sunshine hours, elevation
Website:
Category:
Climate
Coverage:
Global
Comment:


IWMI-CPWF have released an on-line data and information portal that provides access to water, agriculture and environment scientific data
The portal name is IDIS - Integrated Database Information System. It allows you to query, download, plot, graph shared data and access its metadata (in GeoNetwork of course – quite a few CGIAR centers have tried to build a similar multi-domain data sharing portal but none succeeded so far – this is a CGIAR breakthrough.
Website:
Category:
Climate
Coverage:

Comment:


The Global River Discharge Database (RivDIS):
Yearly time series with monthly data of discharge (m3/s) for about 1000 sites.
Website:
Category:
Water Resources
Coverage:
Global
Comment:
Each data entry provides textual information, tabular data, and graphs

Global Land Cover Characterization
Land cover with different legends available
Website:
Category:
Land Cover & Vegetation
Coverage:
Global & Continental
Comment:
All continental databases share the same map projections (Interrupted Goode Homolosine and Lambert Azimuthal Equal Area), have 1-km nominal spatial resolution, and are based on 1- km Advanced Very High Resolution Radiometer (AVHRR) data spanning April 1992 through March 1993.

Satellite imagery
Products from divers sensors, e.g Landsat, MODIS, ASTER, Quickbird, AVHRR
Website:
Category:
Land Cover & Vegetation
Coverage:
Global & regional
Comment:


NO-CHARGE IMAGERY FOR EVERYONE!
The USGS has released a technical announcement outlining the plan for the release of no-charge Landsat data.
Website:
Category:
Land Cover & Vegetation
Coverage:

Comment:


Global Forest Resources Assessment (FRA 2000)
State and conditions of forest resources for the year 2000, and their changes over the last 20 years
Website:
Category:
Land Cover & Vegetation
Coverage:
Global
Comment:
produced from the Global Land Cover Characteristics (GLCC) Database

Global Biodiversity Information
The convention on biological diversity:
Website:
Category:
Protected Areas & Biodiversity
Coverage:

Comment:


Digital charts of the world:

Website:
Category:
Protected Areas & Biodiversity
Coverage:

Comment:


Odden’s bookmarks a link library to maplibraries:

Website:
Category:
Protected Areas & Biodiversity
Coverage:

Comment:


Soil Map of the World and Derived Soil Properties
Soil data and derived properties
Website:
Category:
Soils & Snow Cover
Coverage:
Global
Comment:
Original scale 1 : 5 000 000

WFP Snow cover
Vector file; the aim of this project is to provide daily updated information on snow covered areas as a support to WFP Logistics.
Website:
Category:
Soils & Snow Cover
Coverage:
Nepal and Pakistan
Comment:


GIS Climate Change Scenarios
Climate scenarios (e.g. air and surface pressure & temperature, precipitation flux, incoming and outcoming radiation, etc)
Website:
Category:
Climate Change
Coverage:
Global
Comment:
Users must first register to view and/or download data. Data downloadable in ESRI Shape format

SALB: Second Level Administrative Boundaries
administrative boundaries down to the second sub-national level
Website:
Category:
General Map Data
Coverage:
Global
Comment:
Project finished on end of 2006
Recommended not to use the data at a scale below 1:1 000 000
Vector data

Global Map
Boundaries, Drainage, Transportation, Population Centers, Elevatic, Land Cover, Land Use, and Vegetation
Website:
Category:
General Map Data
Coverage:
Global
Comment:
ISGM aims to complete the development of the Global Map for the whole land area of the globe by 2007. After the completion, the data are to be updated at intervals of approximately five years.
  • To download Global Map data, user registration is required
  • Raster and Vector data

United Nations Environmental Programme (UNEP) – GEO Data Portal
The GEO Data Portal is the authoritative source for data sets used by UNEP and its partners in the Global Environment Outlook (GEO) report and other integrated environment assessments. Its online database holds more than 450 different variables, as national, subregional, regional and global statistics or as geospatial data sets (maps), covering themes like Freshwater, Population, Forests, Emissions, Climate, Disasters, Health and GDP. Display them on-the-fly as maps, graphs, data tables or download the data in different formats.
Website:
Category:
Others
Coverage:

Comment:


Group on Earth Observation
The GEOportal provides an entry point to access Earth Observationinforma tion and services. It will connect to a system of existing portals, addressing the GEO Societal Benefit Areas globally and provide national to regional perspective to achieve synergy and leverage.
Website:
Category:
Others
Coverage:

Comment:


Global Land Cover Facility
Contain whole range of imagery and products.
Website:
Category:
Others
Coverage:

Comment:

Website:
Category:
Others
Coverage:

Comment:


Website:
Category:
Others
Coverage:

Comment:

Website:
Category:
Others
Coverage:

Comment:


Copyright Mountain GeoPortal