Wednesday, September 23, 2009

Light Pollution in Wildomar, Cornerstone Church

Topic: Local Light Pollution

(Update 1/14/10: Cornerstone Church withdraws its application. See The Californian.)

Two weeks ago I learned that a local church was making a significant expansion to their facilities, an expansion that would include night lighting. Though rushed, I submitted comments that I'm posting below. But first, I regret that I haven't directly contacted the Church. I've been asked twice by members of the community if I'm aware of Cornerstone's apparent violation of our lighting ordinance. The second time was in a public meeting attended also by a member of the church. This member spoke up, said the pastor would be receptive, and offered to talk to him. I gave this person some of my handouts, but I never followed up -- my regret.

Learning that the Planning Dept was considering the Cornerstone expansion, I realized that this hearing was my opportunity and obligation to submit comments. I also believe any well-intentioned group serving the community would use such a hearing to invite comments and concerns from their neighbors.

My comments were as follows:

I am pleased at the attention the initial study gives to lighting and will be eager to review the electrical plans described under sections V.2 and V.3. While I applaud these measures, I wish to question the scope of section V.3, which asks if the project will “create a new source of substantial light or glare that would adversely affect day or nighttime views in the area” (emphasis mine). I assert that Cornerstone’s existing lighting already violates County Ordinance 655 (and Wildomar ordinance 8.80) and is an unnecessarily substantial source of light pollution and glare. As it is common practice to correct existing code violations before issuing new permits, so I would like the City of Wildomar Planning Department to review Cornerstone’s existing impact on the night sky.



In the above photo, the white entrance lights should be fully shielded (and may exceed the lumens limit), the Cornerstone signs (one of two on the building is shown) should be backlit with low pressure sodium lights, and the up-lit cross should also use a low pressure sodium light sources.

The photos below shows Cornerstone’s existing impact on aesthetics as well as the sky:


The above photo shows Cornerstone from Grand Ave, near David A. Brown Middle School (at least 1 mile distant). The sign is prominent, and the lower lights are temporary lights supplementing their parking lot lighting.

Below, in this attempt to capture dusk on San Jacinto Mountain, the Cornerstone sign (lower right) becomes the dominant intrusion into the scene. It gets worse as one takes longer exposures to capture the night sky.


I think this photo (below) shows how the sign and façade lights overwhelm the cross. The cross would be easier to see with a darker background.



My request is as follows:
1. The City of Wildomar should use the permitting opportunity to achieve all minimal impacts possible, especially where changes to existing lighting violate County and City lighting codes.
2. Consider improvements to the lighting plans that will pre-empt a temptation to over-light the new parking lot. For example, if the parking lot has too few low pressure sodium lights, there will be a temptation to use temporary flood lighting. Well-shielded, low-profile landscape and walkway lights from the parking lot to other areas can minimize the perceived need for extra lighting. (Note added here: that with this comment, I'm trying to offer a compromise that considering the number of people served by Cornerstone and that many activities will occur at night, I'm open to variances that ensure that their visitors feel safe).
3. Set a standard that uses contrast instead of brightness to emphasize sacred and patriotic imagery. (Note added here: I'm not objecting to their uplit cross; rather, I'm offering a standard that this is the object that they should want most prominent and the best way to achieve this is to reduce the other lighting).

JG


Saturday, August 22, 2009

Striped mystery beetle


I found this bug while I was raking leaves. I put him on a desert mallow for safe keeping. I have no idea what species this is.

jg

Update: Icesign adds this link: http://en.wikipedia.org/wiki/Colorado_potato_beetle

Friday, August 21, 2009

Color on the Web

Several years ago I killed the grass and put in a native plant garden. This garden continues to surprise me. In this case, it was the color transmitted through a dry spider web that amazed me. I emphasize that there was no moisture to create the irridescent effect. I hope the photos below show on your computer the colors I saw. Click the photos to see the colors better. I made no enhancements to the photos.




And last... no butterflies were harmed in the taking of this photo:



jg

Sunday, August 9, 2009

Crepuscular and anti-crepuscular rays

Crepuscular rays are the beams of light we see near sunrise or sunset when clouds or mountaintops are well-positioned to cast shadows or provide gaps that beams of light shine through. (Note that the beam radiating from the above photo at about 1:00 shows a light ray that is then superceded by a shadow.) I have read that there are anti-crepuscular rays too. These are the rays you'd see if you looked in the opposite direction. I haven't noticed any till recently, when I saw these:

These were barely discernable, so below I enhanced the contrast to make them obvious. I made no other changes:

The illusion of separating or converging beams is a great reminder of how perspective affects perception. The rays and shadows are parallel, just as with meteors in a meteor shower, but they give the impression of radiating from a single point.
As much as a look at this crepuscular ray, I can't convince myself into seeing it as a horizontal beam:
jg




Thursday, August 6, 2009

Venn diagram, field of view











OpenMind (see blog roll) is inviting charts.

Thursday, July 23, 2009

Viewshed protections

City or county ordinances that protect viewsheds would prevent the construction of the homes shown here at the top of the valley slopes, but considering the recent fire that scorched the slopes on the left, it would be a good idea to prevent such construction. The vegetation on these slopes is collectively referred to as chaparral, which has it origin in the Spanish word chamas, for fire. Burning vegetation combined with the steep slopes creates a chimney effect, pulling hot air in, heating it, sending it upward, carrying heat and flames with it.


Chamise, a dominate plant in the chaparral is also called "greasewood" for its tendancy to burn. Fire is common. It has shaped the chaperal biome. It will continue to occur and will have to be managed. But the only way these few homes on top of slope will be safe is to eliminate the chaparral below them, which alters the view of the this slope as seen by thousands of residents in the valley. Remaking the vegetation would also displace many animals and elimate the plants that grow here and this portion of the hillside will stop serving as a corridor for the movement of species and genetic diversity between fragments of the Cleveland National Forest.




I'll be watching this hillside to see if it recovers naturally or preventative measures are taken for the sake of the few houses on the top.

jg

Tuesday, July 7, 2009

My own menagerie

Here are some of the animal photos I've taken while on local hikes:


Grey Fox: I met his creature chasing a rabbit. (He was chasing the rabbit.) Both lept out of the bushes beside me and the rabbit disappeared. The fox looked at me (posing) and lurched off into the bushes.

This is known as a Jeruselum Cricket. The inset on the left shows my foot (men's size 12) next to the cricket for size. (This is as close I as got to the creature.)



I don't know which species this hummingbird is, but I think the red marking on the throat will be obvious to those who do know. I was impressed that I could unwrap my camera and get shot in time to catch its wings in motion.


When encountering a snake on the trail, I usually scare it away with my almost involuntary foot shuffling (a natural and beneficial panic reaction that I've never cured myself of), but this rosy boa stayed put. Though rosy boas are common in our region, seeing one is rare. Since seeing this boa obstructing the trail, I've contemplated what it would be like to see the boa from 58 million years ago reported in the journal Nature. The authors describe a boa that was a meter wide, that would be like a meter wide log laying across the path.


And... according to an interpreter at the ecological reserve (where all of these photos were taken), this above insect is Manroot Borer (Melittia gloriosa). They are found from Kansas and western Texas to southern California and up through Oregon. The caterpillar bores into the wild cucumber root (Manroot) and overwinters in a silken cocoon beneath the soil. It is highly prized by collectors. Probably for its attractiveness (note the species name) but also because it's rare. They are in flight during the months of May through October and they become more active as the temperature increases.

jg