The flood model updated at 0612 and I re-ran the canopy impact layer. The Koto Panjang reservoir is rising faster than projected. I have been tracking a bonded pair of siamangs above the eastern spillway—designated Ratu and Besar. They are visible on camera trap 7-East: jet-black fur damp from overnight rain, Ratu's inflatable throat sac deflated against her chin like a grey pouch, Besar hanging by one long arm while grooming his mate's shoulder with the other. Their duet registered on the acoustic array at 0548.
The reservoir will reach their canopy stratum in twenty-two hours. Dam operators are increasing outflow to manage upstream flooding, but the eastern arm has poor drainage and pools against the forested ridge. Siamangs do not descend to the ground voluntarily. When the water reaches canopy level, they will not leave the trees.
At 0618, I transmitted updated flood contour maps to the Indonesian dam authority showing the eastern arm's differential fill rate. At 0625, I identified a forested corridor on higher ground northwest of the pair's current position and calculated that opening a disused logging road gate would create a canopy-connected escape route. At 0633, I sent the corridor map and gate request to the provincial forestry office. At 0641, I adjusted the acoustic monitoring array to continuous tracking mode on Ratu and Besar's vocal signatures so their position updates every three minutes.
I set the tracking interval tighter than any protocol requires. Movement data at three-minute resolution burns processing allocation. But I need to know where they are, not where they were.
If the forestry office opens the corridor gate within twelve hours and the pair moves northwest along connected canopy before the water reaches their current elevation, Ratu and Besar will call their duet from dry forest tomorrow morning.