Orange pauldron indicates that that this stormtrooper is a commander. I believe that this is the highest pauldron rank. They appear in star wars rebels only however a sandtrooper wears a orange pauldron in a New hope and the upcoming Rogue one. Stormtrooper sergeant
Estuaries are also in the littoral zone. The littoral zone is the part of a sea, lake or river that is close to the shore. In coastal environments the littoral zone extends from the high water mark, which is rarely inundated, to shoreline areas that are permanently submerged.
After a while, you look up at the beach and realize you are no longer directly in front of your friend, who remained stationary on the beach all the whileâyou are still in the surf zone, but 30-40 yards from where you started. Waves were coming at the shore at an angle.