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 Good Coordinates MUNEENDRA KUMAR, PH.D.

The most important ingredient for “Preparedness”

Unless we are “fully” prepared, we cannot have good and timely response. And, to be fully prepared with good coordinates is in the hands of geodesists, surveyors, map or chart makers, and all others, who generate data. In turn, correct and accurate “Good Coordinates” and quick and timely advice will strengthen the hands of the country’s leaders, civil and/or military. If anything is lacking in good coordinates, “We” would be failing with no room for any excuse(s).

In case of natural disasters, viz., earthquake, tsunami, and hurricanes or typhoons or cyclones, we may still be in need of more research to provide “Best Coordinates”, but that should not be taken as an excuse for lack of preparedness. The “present” good coordinates (which we already have) are still better than no coordinates and thus to be caught unprepared.

In case of Geo-Spatial Information (GSI), we have no excuse for nopreparedness. Here, we have all the researches, techniques, and technologies to be ready and fully prepared. We have the necessary capabilities to produce correct and accurate geodetic positions, maps, and charts. But, if we search why we are not getting optimum benefits from the “Good Coordinates”, which are already there or can be easily generated, we will fi nd ourselves denying them. Here are a few reasons, which impact adversely on our preparedness and thereof on our response(s):
1. Taking no advantage from or ignoring the new research,
2. Holding on to old, outdated, and obsolete algorithms and products,
3. Not correcting and improving geodetic definitions of critically important products, even when pointed, clarified, and duly explained,
4. Not taking immediate action(s) to correct the LARGE mistakes and/or blunders,
5. Allowing tampering of database by unauthorized persons, where nobody knows who did that and when was it done,
6. Continuing to use “bad” and/ or outdated software,
7. Getting software written or existing ones, which require “special” knowledge or expertise, updated by “outsiders” who do not even have basic understanding,
8. Designing and/or managing special scientific projects by those, who believe in the old routines and follow them with no innovation,
9. Assigning highly scientific projects to those who do not have the necessary and sufficient theoretical knowledge (Note: They also do not make any effort to “consult”).

Now, I will list a few specific examples, which show how we are “hurting” our “Good Coordinates”:
1. Aeronautical charts produced lacking the datum and ellipsoid information and have TWO grids in one color. Surprisingly, one or both the grids might be wrong. These non-usable charts, without being corrected, are openly available for use.
2. A blunder of 1 km, even when correction had been generated, was still there in the main database after 2 years.
3. In 1982, during the development of a 2 million dollar instrument, which required a gravitation model, the formula used was taken from a book entitled “Electricity and Magnetism”, 1919.
4. There are no nuclear physics or cardiology book(s) for a common person. But, there is one entitled “Geodesy for Laymen”.
5. In a hardbound “prestigious” volume, the geoid is defined as a “surface on which the gravity is constant”.
6. To enter government jobs, a candidate, who has not studied even one course of geodesy, can get hired as a GEODESIST, keep getting promoted, and then start making decisions on highly complex geodetic issue(s).
7. It is then not surprising that one can find: (1) standard deviation computed with “n = 1”, (2) “reobservation” made 3-5 meters from an already surveyed station, and (3) ZEROS added or deleted “freely” from constants or computed results, and surveyed positions. 8. Users are provided and/or algorithms are developed with zero longitude and “eastings and northings” coordinates at the Poles. 9. During 1992, in an international marine symposium, an Indonesian author stated in the morning session that his country has 13,000 islands. Later in the afternoon, another one raised the number by 35% to 17,000. There were a few lively questions and remarks, but it seems that such a critical issue, which can extend or decrease a country’s boundary, is still not “defined”. 10. In case of New Orleans, there was a mix up in supply of leveling data for construction of levees for flood control.

Here, a cautionary note is that the problems are deeply embedded in our products and production procedures. Strangely enough, there is also very stiff resistance to accept that the old procedures and specifi cations have outlived their time and then agree for change and improvement. Entering the 21st century, “patch up” updates, revisions, and/or routine solutions will only postpone our having the correct and accurate “Good Coordinates”. The only “remedy” is complete and thorough update(s) using latest research, techniques, and technologies. Let us remember that for smart defense, we need today’s “Smart Coordinates”, which cannot be generated from old and outdated GSI.

During my entire professional life as surveyor, mapmaker, and geodesists in the pursuit of providing good coordinates, I have witnessed the above reasons and examples, which are prevalent in almost all the countries around the world. If we keep using “Outdated Coordinates”, how can we be prepared to provide a good response, as and when need arises.

We need “Good Coordinates” to be ready and prepared for a good and timely response. There is no shortcut to this!
“Security concerns about maps”

I agree with Lt Gen Ranjit Singh that “Security concerns about maps are at times overplayed” in India (Coordinates, Vol II, Issue 1 January
2006) and commend him for his candid position. But, I may add that in India this concern is put forward all the time. With experience of working with 100+ countries around the world, I never witnessed anything like India. And, taking the recent city map of Delhi as an example, which shows airport area(s) blank, I wonder what is being protected in the days of high- resolution imagery and GPS positioning. I have seen a GPS surveying report of an airport in India with station coordinates printed in arc seconds up to three decimal places. But, the degrees and minutes omitted. If this policy is for security, it would take only a few seconds with a handheld GPS receiver to get the “omitted” information.

About 20 years back, one of my ex- SOI colleagues, who was visiting USA, told me that he would like buy a 1: 24,000 map for taking to India. I said that you do not have to buy and I can provide you as many as you want as they are openly available. These days, one can
download them from the website.

In the same context, I have been informed many times that India wants to retain the old 19th century Indian Datum, with obsolete defi nition and very poor accuracy, for security. It is surprising how SOI is overplaying the security concern and thus, trying to hide behind a “porous” geodetic legacy. This datum would only jeopardize the national interest and 21st century “Good Coordinates”.
—Muneendra Kumar, Ph.D.
 
Muneendra Kumar Ph.D.
is Chief Geodesist (Retired), U S National
Geospatial- Intelligence Agency munismk@yahoo.com
 
Feb 2006
 
Is definition of WGS 84 correct?
Muneendra Kumar and James P Reilly
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