The document discusses various methods for using remote sensing and GIS techniques in geology, including analyzing lithology using band ratios and PCA, identifying mineral exploration targets using SAM and MNF transforms, and mapping geomorphology using sun angle analysis. It also provides examples of using color composites to identify structures and band ratios to map alteration zones. The document recommends software like ENVI and ERDAS Imagine for processing remote sensing data for geological applications.
As part of the GSP’s capacity development and improvement programme, FAO/GSP have organised a one week training in Izmir, Turkey. The main goal of the training was to increase the capacity of Turkey on digital soil mapping, new approaches on data collection, data processing and modelling of soil organic carbon. This 5 day training is titled ‘’Training on Digital Soil Organic Carbon Mapping’’ was held in IARTC - International Agricultural Research and Education Center in Menemen, Izmir on 20-25 August, 2017.
Application of Remote Sensing Techniques for Change Detection in Land Use/ La...iosrjce
IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of Applied Geology and Geophysics. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Applied Geology and Geophysics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
As part of the GSP’s capacity development and improvement programme, FAO/GSP have organised a one week training in Izmir, Turkey. The main goal of the training was to increase the capacity of Turkey on digital soil mapping, new approaches on data collection, data processing and modelling of soil organic carbon. This 5 day training is titled ‘’Training on Digital Soil Organic Carbon Mapping’’ was held in IARTC - International Agricultural Research and Education Center in Menemen, Izmir on 20-25 August, 2017.
Geoinformatics is the science and the technology which develops and uses information science infrastructure to address the problems of geography, cartography, geosciences and related branches of science and engineering.
As part of the GSP’s capacity development and improvement programme, FAO/GSP have organised a one week training in Izmir, Turkey. The main goal of the training was to increase the capacity of Turkey on digital soil mapping, new approaches on data collection, data processing and modelling of soil organic carbon. This 5 day training is titled ‘’Training on Digital Soil Organic Carbon Mapping’’ was held in IARTC - International Agricultural Research and Education Center in Menemen, Izmir on 20-25 August, 2017.
Application of Remote Sensing Techniques for Change Detection in Land Use/ La...iosrjce
IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of Applied Geology and Geophysics. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Applied Geology and Geophysics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
As part of the GSP’s capacity development and improvement programme, FAO/GSP have organised a one week training in Izmir, Turkey. The main goal of the training was to increase the capacity of Turkey on digital soil mapping, new approaches on data collection, data processing and modelling of soil organic carbon. This 5 day training is titled ‘’Training on Digital Soil Organic Carbon Mapping’’ was held in IARTC - International Agricultural Research and Education Center in Menemen, Izmir on 20-25 August, 2017.
Geoinformatics is the science and the technology which develops and uses information science infrastructure to address the problems of geography, cartography, geosciences and related branches of science and engineering.
Change detection analysis in land use / land cover of Pune city using remotel...Nitin Mundhe
Lecture delivered in the National Conference entitled “Monitoring Degraded Lands” jointly organized by Agasti Arts, Commerce and Dadasaheb Rupwate Science
College, Akole and Maharashtra Bhugolshastra Parishad Pune to be held on 4 to 6 February 2014.
Strategic Development Of Infrastructure For Spatial Information Based On Euro...Maksim Sestic
Introductory presentation to experimental research on “iGEO” geoportal, a GeoServer-based set of web services allowing Bosnia-Herzegovinian local municipalities, government agencies and utility infrastructure organizations access to the most precise base map data modelled after INSPIRE standard.
Remote Sensing Applications in Agriculture at the USDA National Agricultural...Phongsakorn Uar-amrungkoon
The mission of the National Agricultural Statistics Service (NASS), an agency of the United States Department of Agriculture (USDA) is “
to provide timely, accurate and useful statistics in service to US agriculture”. Towards this goal, NASS conducts hundreds of surveys every year collecting information on virtually every aspect of agricultural activity. In 2010, the NASS Cropland Data Layer
(CDL) Program played an important role toward fulfilling this mission using remote sensing techniques to provide operational in-season acreage estimates to the NASS Agricultural Statistics Board (ASB)
and Field Offices (FOs) for twenty seven states and sixteen crops.
Land Use Land Cover Change Detection of Gulbarga City Using Remote Sensing an...ijsrd.com
Land use and land cover(LULC) recently these days became a major component to handle natural resources and managing changes occurring in the environment.which is due to expansion of the urban area it has lead to critical losses of agriculture land,vegetation land and water bodies.followed by this the urban sprawl created a environmental issues. For example :decreased air quality and increase in the temperature etc. Land use and land cover change is driven by human actions and also drives changes that limit availability of products and services for human and animals, and it can undermine ecological wellbeing also. Land use and land cover is an important component in understanding various interactions of the human activities with the environment and thus it is necessary to be able to simulate changes. Therefore, this study was aimed at understanding land use and land cover change in Gulbarga city. In this work we took Gulbarga city to study the urban expansion and LULC change that took place in 2001 and 2012 to know the changes happened in the year 2012 by comparing with data of 2001.remote sensing methodology is used in this study which provides major coverage mapping & classification of land cover features such as vegetation,soil,water,forest etc. A wide range of environmental parameters can be measured including the land use, vegetation types, surface temperatures , soil types, precipitation, phytoplankton, turbidity, surface elevation and geology.satellite images of two different years i.e 2001 and 2012 are taken in to consideration.after image processing classification is done so as to classify images in to various different land use categories.
Change detection analysis in land use / land cover of Pune city using remotel...Nitin Mundhe
Lecture delivered in the National Conference entitled “Monitoring Degraded Lands” jointly organized by Agasti Arts, Commerce and Dadasaheb Rupwate Science
College, Akole and Maharashtra Bhugolshastra Parishad Pune to be held on 4 to 6 February 2014.
Strategic Development Of Infrastructure For Spatial Information Based On Euro...Maksim Sestic
Introductory presentation to experimental research on “iGEO” geoportal, a GeoServer-based set of web services allowing Bosnia-Herzegovinian local municipalities, government agencies and utility infrastructure organizations access to the most precise base map data modelled after INSPIRE standard.
Remote Sensing Applications in Agriculture at the USDA National Agricultural...Phongsakorn Uar-amrungkoon
The mission of the National Agricultural Statistics Service (NASS), an agency of the United States Department of Agriculture (USDA) is “
to provide timely, accurate and useful statistics in service to US agriculture”. Towards this goal, NASS conducts hundreds of surveys every year collecting information on virtually every aspect of agricultural activity. In 2010, the NASS Cropland Data Layer
(CDL) Program played an important role toward fulfilling this mission using remote sensing techniques to provide operational in-season acreage estimates to the NASS Agricultural Statistics Board (ASB)
and Field Offices (FOs) for twenty seven states and sixteen crops.
Land Use Land Cover Change Detection of Gulbarga City Using Remote Sensing an...ijsrd.com
Land use and land cover(LULC) recently these days became a major component to handle natural resources and managing changes occurring in the environment.which is due to expansion of the urban area it has lead to critical losses of agriculture land,vegetation land and water bodies.followed by this the urban sprawl created a environmental issues. For example :decreased air quality and increase in the temperature etc. Land use and land cover change is driven by human actions and also drives changes that limit availability of products and services for human and animals, and it can undermine ecological wellbeing also. Land use and land cover is an important component in understanding various interactions of the human activities with the environment and thus it is necessary to be able to simulate changes. Therefore, this study was aimed at understanding land use and land cover change in Gulbarga city. In this work we took Gulbarga city to study the urban expansion and LULC change that took place in 2001 and 2012 to know the changes happened in the year 2012 by comparing with data of 2001.remote sensing methodology is used in this study which provides major coverage mapping & classification of land cover features such as vegetation,soil,water,forest etc. A wide range of environmental parameters can be measured including the land use, vegetation types, surface temperatures , soil types, precipitation, phytoplankton, turbidity, surface elevation and geology.satellite images of two different years i.e 2001 and 2012 are taken in to consideration.after image processing classification is done so as to classify images in to various different land use categories.
Spectral Indices Across Remote Sensing Platforms and Sensors Relating to the ...Mallikarjun Mishra
With advances in remote-sensing technology and higher-quality products, the field of spectral indices has experienced a sizeable progressive evolution. These spectral indices computed by using different brands of remote-sensing products and applying additive, subtractive, or normalizing operations, have been and are being devised to detect diverse objects in various spheres of our planet. For instance, there are spectral indices that detect and delineate plant leaf moisture, that biome comes under biosphere, at distinctive spatial scales. There are other indices that are used to extract elements from the lithosphere like iron oxide content, or to show clay mineral content, etc. Similarly, there are spectral indices to detect various elements which constitute other spheres of our planet. In this work, we have used the Web of Science (WoS) database from 1999 to 2022 and searched for only English language research journals, book chapters, books, and scientific reports. We found 2227 documents in all the categories to perform a systematic, scientometric review regarding spectral indices used for the identification of elements constituting various objects of the five different spheres. The primary objective of this chapter is to present a systematic and scientometric review of spectral indices used for quantification of different elements of all the spheres of our planet relating to lithosphere, hydrosphere, atmosphere, biosphere, and anthroposphere, across remote-sensing platforms and sensors. The study also examines the rationale of spectral indices across the ever-advancing remote-sensing platform and sensors, and their future challenges, and investigates the challenges and prospects of this domain of study. This study will be useful for acquainting new researchers with the use spectral indices for their specific objectives.
Global Land Cover and Intelligent Analysis of Remote Sensed ImagesMaria Antonia Brovelli
ISPRS Session at the United Nations World Geospatial Information Congress.
Maria Antonia BROVELLI 1, Wen-zhong John SHI 2 , Peng SHU 3, Qingquan LI 4, Serena COETZEE 5
1 Politecnico di Milano – Italy; 2 The Hong Kong Polytechnic University – Hong Kong; 3 National Geomatics Center China; 4 Shenzhen University – China; 5 University of Pretoria – South Africa
EVALUATING REFLECTIVE SPECTROSCOPY FOR PREDICTING SOIL PROPERTIES IN GAJAPATI...indexPub
Visible near-infrared spectroscopy, renowned for its non-destructive nature, rapidity, cost-efficiency, and minimal sample preparation requirements, holds promise as a substitute for in vitro techniques. This ongoing study aims to evaluate the viability of reflective spectroscopy for predicting soil properties in ion farming plains across Gajapati district Odisha. A meticulous collection of 110 soil samples from these regions formed the basis, with their core attributes established using conventional in vitro methods. Employing a land spectroscopic device, the soil samples underwent spectral analysis within the wavelength band of 240 to 400 nm. Following spectrum recording, diverse pre-processing approaches were assessed, paving the way for the application of PCA (Principal Component Analysis) and PLSR (Partial Least Squares Regression) models to decipher pivotal soil properties. The superior model choice was subsequently employed to formulate regressive functions, facilitating the prediction of targeted parameters through linear regression. Findings spotlight the precision of both PCA and PLSR models in elucidating soil properties, with the latter displaying heightened accuracy. Evaluated using the RPD (Ratio of Performance to Deviation) metric, the most accurate estimations were achieved for minerals (RPD=9.34), pH (RPD=4.45), and nitrogen (RPD>2), all classified within category A. In contrast, accuracy proved lower for variables like clay, silt, gravel, phosphorus, potassium, calcium, magnesium, and gypsum, where RPD values ranged between 0.01 and 0.28. These values collectively affirm the satisfactory precision of spectral regressive functions in forecasting the targeted foundational properties. In summary, outcomes of this study underscore the commendable precision of both PCA and PLSR models in determining crucial soil parameters. Moreover, soil spectral data emerges as an effective indirect means to estimate the physical and chemical attributes of soil. Compared to conventional laboratory methods, this technique emerges as a more cost-effective alternative, enhancing efficiency in terms of both time and cost while maintaining heightened precision.
First light of VLT/HiRISE: High-resolution spectroscopy of young giant exopla...Sérgio Sacani
A major endeavor of this decade is the direct characterization of young giant exoplanets at high spectral resolution to determine the composition of
their atmosphere and infer their formation processes and evolution. Such a goal represents a major challenge owing to their small angular separation
and luminosity contrast with respect to their parent stars. Instead of designing and implementing completely new facilities, it has been proposed
to leverage the capabilities of existing instruments that offer either high contrast imaging or high dispersion spectroscopy, by coupling them using
optical fibers. In this work we present the implementation and first on-sky results of the HiRISE instrument at the very large telescope (VLT),
which combines the exoplanet imager SPHERE with the recently upgraded high resolution spectrograph CRIRES using single-mode fibers. The
goal of HiRISE is to enable the characterization of known companions in the H band, at a spectral resolution of the order of R = λ/∆λ = 100 000,
in a few hours of observing time. We present the main design choices and the technical implementation of the system, which is constituted of three
major parts: the fiber injection module inside of SPHERE, the fiber bundle around the telescope, and the fiber extraction module at the entrance
of CRIRES. We also detail the specific calibrations required for HiRISE and the operations of the instrument for science observations. Finally, we
detail the performance of the system in terms of astrometry, temporal stability, optical aberrations, and transmission, for which we report a peak
value of ∼3.9% based on sky measurements in median observing conditions. Finally, we report on the first astrophysical detection of HiRISE to
illustrate its potential.
The preliminary design of a low-cost Discovery class mission for prospecting Mars moons Phobos and Deimos is undertaken as capstone senior design class in spacecraft design. The mission is centered on a LCROSS-like mothership that carries a set of four 12U and eight 6U CubeSats. The mothership is equipped with a set of instruments for the investigation of regolith samples, similar to those with a similar functions on the Curiosity rover and the 2020 rover.
Using Remote Sensing Techniques For Monitoring Ecological Changes In Lakes: C...IJERA Editor
The ability to use remote sensing in studying lake ecology lies in the capability of satellite sensors to measure
the spectral reflectance of constituents in water bodies. This reflectance can be used to determine the
concentration of the constituents of the water column through mathematical relationships. This work identified a
simple linear equation for estimating suspended matter in Lake Naivasha with reflectance in Landsat7 ETM+
image. A R² = 0.94, n = 6 for suspended matter was obtained. Archive of Landsat imagery was used to
produce maps of suspended matter concentrations in the lake. The suspended matter concentrations at five
different locations in the lake over 30 year’s period were then estimated. It was therefore concluded that the
ecological changes Lake Naivasha is experiencing is the result of the high water abstraction and the effect of
climate change.
Using Remote Sensing Techniques For Monitoring Ecological Changes In Lakes: C...IJERA Editor
The ability to use remote sensing in studying lake ecology lies in the capability of satellite sensors to measure
the spectral reflectance of constituents in water bodies. This reflectance can be used to determine the
concentration of the constituents of the water column through mathematical relationships. This work identified a
simple linear equation for estimating suspended matter in Lake Naivasha with reflectance in Landsat7 ETM+
image. A R² = 0.94, n = 6 for suspended matter was obtained. Archive of Landsat imagery was used to
produce maps of suspended matter concentrations in the lake. The suspended matter concentrations at five
different locations in the lake over 30 year’s period were then estimated. It was therefore concluded that the
ecological changes Lake Naivasha is experiencing is the result of the high water abstraction and the effect of
climate change.
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
Natural farming @ Dr. Siddhartha S. Jena.pptxsidjena70
A brief about organic farming/ Natural farming/ Zero budget natural farming/ Subash Palekar Natural farming which keeps us and environment safe and healthy. Next gen Agricultural practices of chemical free farming.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
2. 2
Танилцуулга
Б.Баяртунгалаг
From 2007 to 2010 some project at NUM-ITC-UNESCO Remote Sensing and GIS laboratory, National
University of Mongolia
From July 2009 to February 2010 Engineer of Remote Sensing and GIS in “AJET limited Geology “Company
Mobile: 99696254
e-mail: b_tungalag_b@yahoo.com
From September 2010 to present Studying by PhD of environmental
geochemistry at the Department of Earth and Environmental Sciences,
College of Science, Korea University, South Korea
Master of Science in Remote Sensing and GIS at School of Physics and
electronics, The National University of Mongolia, 2007 - 2009
Bachelor of Science in Teacher of Physics and Natural Science (Physics
Education), the National University of Mongolia, 2003- 2007
24. 24
ENVI, www.exelisvis.com
ERDAS Imagine, www.erdas.com
GeoMedia, Intergraph, www.intergraph.com
Geomatica, PCI Geomatics, www.pcigeomatics.com
ER Mapper, Earth Resource Mapping,
www.ermapper.com
PG-STREAMER, ( 주 ) 픽소니어지오매틱스 ,
www.pixoneer.co.kr
MultiSpec, School of Electrical and Computer
Engineering, Purdue University,
dynamo.ecn.purdue.edu/~biehl/MultiSpec
MultiSpec
Програм хангамж
25. 25
References
Japan Association on Remote Sensing, 1993, Remote Sensing Note,
Japan Association on Remote Sensing.
Jensen, J.R., 2000, Remote Sensing of the Environment: An Earth
Resource Perspective, Prentice-Hall.
Morain, S. and S.L. Baros, Eds., 1996, Raster Imagery in Geographic
Information Systems, Onword Press.
Klinkenberg, B., 2007, Remote Sensing : An increasingly important source
of data for GIS.
The University of Washington Spatial Technology, GIS, and Remote
Sensing Page, Introduction to Remote Sensing, Introduction to
Geographic Information Systems in Forest Resources,
http://gis.washington.edu/cfr250/lessons/remote_sensing
http://www.geoeye.com
http://www.kari.re.kr
http://www.r-s-c-c.org
26. 26
References
Journal papers
IJGIS
IJRS
PE&RS
Environment of Remote Sensing
IEEE Transactions on Geoscience and Remote Sensing
Conference Proceedings
IGARSS(IEEE International Geoscience and Remote Sensing
Symposium)
ISPRS(International Society for Photogrammetry and Remote
Sensing )
FOSS4G(Free and Open Source Software for Geospatial)
27. 27
References
Topics References
General
*Delaney, J. and Niel, K.V., 2007, Geographic Information Systems: An Introduction, 2nd ed., Oxford.
Department of Economic and Social Affairs, 2000, Handbook on geographic information systems and digital mapping,
United Nations
*Liu J.G. and Mason P.J., 2009, Essential Image Processing and GIS for Remote Sensing, Wiley-Blackwell.
Lowry, J., 2006, Ramsar Technical Report No. 2: Low-cost GIS software and data for wetland inventory, assessment
and monitoring, Ramsar Convention Secretariat.
*Reddy, M. A., 2008, Textbook of Remote Sensing and Geographical Information Systems, 3rd ed., BS Publications.
Rolf A. de By (eds.), 2001, Principles of Geographic Information Systems, 2nd ed., ITC, ITC Educational Textbook
Series 1.
Sutton, T., O. Dassau, and M. Sutton, 2009, A Gentle Introduction to GIS, Eastern Cape, South Africa,
http://www.qgis.org/.
Weng, Q., 2010, Remote Sensing and GIS Integration : Theories, Methods, and Applications, McGraw-Hill.
Spatial Data
Fabrikant, S.I., T. Reichenbacher, M.V. Kreveld and C. Schlieder (eds.), 2010, Geographic Information Science: 6th
International Conference, GIScience 2010, Zurich, Switzerland, September 14-17, 2010 Proceedings, Springer.
Jones, S. and K. Reinke (eds.), 2009, Innovations in Remote Sensing and Photogrammetry, Springer.
Riedl, A., W. Kainz and G.A. Elmes (eds.), 2006,Progress in Spatial Data Handling: 12th International Symposium on
Spatial Data Handling, Springer.
Wilson, J.P. and A. S. Fotheringham (eds.), 2008, The Handbook of Geographic Information Science, Blackwell
Publishing.
Remote
Sensing
Angelo, J. A., 2006, Frontiers in space: Satellites, Facts On File books.
Elachi, C. and J. V. Zyl ,2006, Introduction to the Physics and Techniques of Remote Sensing, 2nd ed., John Wiley
& Sons.
Navulur, K., 2007, Multispectral Image Analysis Using the Object-Oriented Paradigm, CRC Press.
Quattrochi, D. A. and J. C. Luvall, 2005, Thermal Remote Sensing in Land Surface Processes, CRC Press.
Xiong, D., R. Lee, J.B. Saulsbury, E.L. Lanzer, and A. Perez, 2004, Remote Sensing Applications For Environmental
Analysis In Transportation Planning: Application To The Washington State I-405 Corridor, Oak Ridge National
Laboratory.
Mapping
Sample, J. T. and E. Ioup, 2010, Tile-Based Geospatial Information Systems: Principles and Practices, Springer.
US Army Corps of Engineers, 2002, Photogrammetric Mapping, Engineer manual, EM 1110-1-1000.
GNSS
El-Rabbany, A., 2002, Introduction to GPS: The Global Positioning System, Artech House.
Gleason S. and D. Gebre-Egziabher (eds.), 2009, GNSS Applications and Methods, Artech House.
US Army Corps of Engineers, 2003, NAVSTAR Global Positioning System Surveying, Engineer manual, EM 1110-1-1003.