We can easily identify the towns in this subscene because of their prominent rectangular street patterns (towns labeled in yellow). The light tones emanating from the streets indicate that most are concrete rather than asphalt. Typical stores and residences in downtown Morro Bay appear below.

Taking a close look in the image (at t), we see a row of two light dots and then three more to the north. A glance at the aerial oblique photo quickly reveals their identity. The stacks are not clearly resolvable in the image but the large central power plant just behind them does show as a dark-toned rectangle (it has a flat-topped roof coated with a material such as asphalt).

Several small, very bright-toned patches appear in Los Osos (as at u) and elsewhere. Some of these are borrow pits where sand and gravel deposited during earlier ocean floods is extracted for construction and other purposes.

1-6: Look for the five oil storage tanks in each of the seven TM images. Can you find them. Explain. ANSWER

At this point we close our first look at the Morro Bay subscene. We will trace the expression of the labeled features described above in other bands and call attention to several additional features that stand out better in one or more of those bands. Now, rather than proceed to the next band, TM 2, we investigate the subscene presented in band 4, which is optimal for highlighting actively growing vegetation as bright tones.

Here is TM band 4.

A first reaction may be that much of the land now displays in brighter tones and the ocean is almost uniformly dark (except where heavy silt still shows at the mouth of the river crossing the wetlands delta). Of course, much of this brightness comes from vegetation. Some of the dark fields (r) [missing-dk] are now quite bright. Similar rectangles in Morro Bay and Los Osos are city parks and meadows.