Comments on the mathematics: Your rho(p) is the areal density function of prominences at p. I will call this function lowercase r, and uppercase R will refer...
Hello Andrew - Numerical differentiation (by first differences) yields the same first derivative as the analytical formula I employ. Thus I stand by all of my...
Adam Helman
helman@...
May 1, 2007 8:29 pm
4214
... I just did the differentiation in Maple. Funny, it gives a result different from either of ours! It gives (using my notation): 1/r dr/dp = 1/p (a0 + 2 a1...
... Did the differentiation again by hand and got the same result as Maple, so I'm pretty confident of it. My comments on self-similarity still apply. Andrew...
Hello Andrew - I returned to my original derivation and learned that I too obtained this result : (1 / rho(p)) (d (rho (p) / dp) = - (a0 + 2 a1 log p) / p...
Adam Helman
helman@...
May 2, 2007 7:38 am
4217
... OK, we agree on the derivative. ... No, I'm quite sure it's a = 3 in your equation that gives self-similarity. Look, the number of prominencess >= p in an...
Andrew - It depends on one's interpretation of self-similar. Imagine a sea of 1,000 foot prominence peaks in a square region. Imagine the same region is...
Adam Helman
helman@...
May 2, 2007 8:59 pm
4219
Getting close to finishing up Montana to P300. Noticed this one not listed anywhere as a 2K. Goat Mountain (8,191): ...
... fraction of p ... So we agree here too. I like to think of it primariliy in terms of R (the density of prominence >= p), because we normally talk in terms...
... You refer to a cumulative prominence distribution function; as the definite integral from the lower threshold to infinity for rho(p). ... Integration of...
Adam Helman
helman@...
May 3, 2007 12:50 am
4222
(Melissa Rigg) Last weekend I did Carrizo Peak on Saturday and the two HPs outside of Sunspot on Sunday, completing the list of the 50 Finest. I did not get...
Andy - I remember Melissa Rigg from that joint assault on S. Oscura Peak last spring season. Good news from the Land of Enchantment! Adam H. ... [Non-text...
Adam Helman
helman@...
May 4, 2007 5:53 am
4224
These two charts demonstrate the correlation between island age with prominence peak density - http://www.cohp.org/temp/ISLE_unfitted_areal_density.gif and...
Adam Helman
helman@...
May 4, 2007 6:16 am
4225
Here are some notes for the archives. All these peaks are in North Park and NW Colorado. April/May are good months to visit this area. 4.19.07 - North Park ...
I recently learned of an aborted trip to Mount Fairweather, a peak featuring notoriously bad weather - indeed, the major stumbling block to its efficient...
Adam Helman
helman@...
May 8, 2007 9:04 pm
4229
(Edward - banned certyferty118) As you probably saw we just got a couple of spams from certyferty118 (Play Disk & Left Sights). According to our group...
Am forwarding these from Pete Bengtson - these are 2K peaks - Andy (Pete Bengtson) On May 8 we left Kayenta at about 6:30 AM to do Prom peaks and fire towers. ...
In separate, private messages Andy Martin and Edward Earl suggest the following modifications to this decomposition of Earth's Fifty Finest into "easy" and...
Adam Helman
helman@...
May 10, 2007 6:37 am
4232
Yes, it get subjective, doesn't it! Some become easy if you have lots of time / money. Or know the right people. Others are easy if you happen to have decent...
I think that BOTH "expedition" and "technical" categories, alone or in combination, suffices to place a mountain on the "harder" subset of Earth's Fifty Finest...
Adam Helman
helman@...
May 10, 2007 7:54 pm
4234
May 7: Got to top of Mt Sedgwick (9256, P = 1856, # 53 in NM, HP Zuni Mt area). This will eventually be a replacement for HP Mockingbird Mts in NM 50 Finest...
Kazufumi did this the hard way - details follow - Andy The 21 Japanese Ultras are listed at http://www.peaklist.org/WWlists/ultras/japan.html Per the list: ...
It is not most prophetic of prominence concept that EVERY one of the twenty-one ultra summits just-so-happens to be on this 100 mountain list? Further, this...
Adam Helman
helman@...
May 13, 2007 5:04 am
4237
Thanks to Jonathan's detailed analysis of SRTM data, we have revised some of the prominence values in the World Top 50. There are no new mountains on the...
Aaron - Is the relative ranking of any peak changed? Adam H. ... [Non-text portions of this message have been removed]...
Adam Helman
helman@...
May 16, 2007 5:40 am
4239
I answered my own question by reading the topmost paragraph - Finisterre HP goes from rank 38 to 44 (but is listed as rank 45) ?? So here is another question -...
Accidentally found another p1k in ME to go with the extra ones I've found in NY and PA Just proves that somebody else needs to go over the NE with a ...
... Jonathan touches on one reason why mountain elevations tend to be overestimated instead of underestimated: aviation maps. All elevation measurements have...
(Adam) ... One of the primary functions of the CIA is to prepare maps. The US Govt never knows where we'll be fighting the next war, so whenever it happens,...
