Coral Cover: Alor 2026

Shaded value = in the CV mean (shade deepens with cover) Gray italic = shown for comparison but left out of the CV mean: the gold standard (the reference value) and the manually annotated in CoralNet CoralNet benchmark annotations (reference values, not models), Coralscapes (not trusted), and any value that reuses the reference's own data n = frames behind the value — = not run or not applicable (see each region's notes) Site names and method names link out (new tab)

Coral Cover: Alor 2026

16 sites · 2,723 photos

No gold standard.

Site	Date	Headline (site page)	Claude	DINOv3	Coralscapes v1	Coralscapes v2	CoralSCOP unedited	CoralSCOP edited	Mean ± SD of CV	Range
Goat Fence	2026-07-28	11%Claude	11^a,in=72	19^a,bn=72	50^a,cn=72	50^a,cn=72	—	29^a,d,hn=72	20 ± 9.4	11–29
Pasir Merah (Red Sand)	2026-07-29	16%Claude	16^a,fn=174	26^a,bn=174	39^a,cn=174	43^a,cn=174	16^a,dn=174	—^e	19 ± 5.6	16–26
Bakalang Jetty	2026-07-29	7.6%Claude	7.6^a,fn=51	16^a,bn=51	25^a,cn=51	26^a,cn=51	18^a,dn=51	—^e	14 ± 5.5	7.6–18
Bama Wall	2026-07-29	11%Claude	11^a,fn=233	27^a,bn=233	24^a,cn=233	27^a,cn=233	9.0^a,dn=233	—^e	16 ± 10.1	9.0–27
Beang Abang (Baeng Beach / Baeng Jetty)	2026-07-30–31	—	3.5^a,f,gn=26	12^a,bn=26	14^a,cn=26	19^a,cn=26	11^a,dn=26	—^e	—	—
Goa Wolang (Walang Cave)	2026-07-30	7.7%Claude	7.7^a,fn=28	19^a,bn=28	15^a,cn=28	18^a,cn=28	8.8^a,dn=28	—^e	12 ± 6.3	7.7–19
Clown Valley	2026-07-30	41%Claude	41^a,fn=209	32^a,bn=209	57^a,cn=209	59^a,cn=209	22^a,dn=209	—^e	32 ± 9.3	22–41
Motonglang (Cathedral)	2026-07-30	5.8%Claude	5.8^a,fn=132	28^a,bn=132	20^a,cn=132	25^a,cn=132	7.6^a,dn=132	—^e	14 ± 12.2	5.8–28
Limarahing (Black Sands)	2026-07-31	29%Claude	29^a,fn=162	32^a,bn=162	49^a,cn=162	51^a,cn=162	18^a,dn=162	—^e	26 ± 7.1	18–32
Apuri Bay	2026-07-31	29%Claude	29^a,fn=208	28^a,bn=208	48^a,cn=208	50^a,cn=207	20^a,dn=208	—^e	26 ± 4.8	20–29
Monaseli (Munaseli)	2026-08-01	20%Claude	20^a,fn=178	21^a,bn=178	38^a,cn=178	39^a,cn=178	16^a,dn=178	—^e	19 ± 2.7	16–21
Babylon	2026-08-01–02	30%Claude	30^a,fn=415	30^a,bn=415	52^a,cn=415	55^a,cn=415	21^a,dn=415	—^e	27 ± 5.6	21–30
The Arch	2026-08-02	23%Claude	23^a,fn=155	23^a,bn=155	49^a,cn=155	51^a,cn=155	19^a,dn=155	—^e	22 ± 2.4	19–23
Umapura	2026-08-02	18%Claude	18^a,fn=197	29^a,bn=197	41^a,cn=186	48^a,cn=184	18^a,dn=197	—^e	21 ± 6.4	18–29
Harilolong (School's Out)	2026-08-03	36%Claude	36^a,fn=275	31^a,bn=275	52^a,cn=275	54^a,cn=275	21^a,dn=275	—^e	29 ± 7.7	21–36
Sulambali Wall	2026-08-03	22%Claude	22^a,fn=208	25^a,bn=208	44^a,cn=208	48^a,cn=208	16^a,dn=208	—^e	21 ± 4.5	16–25
All sites (unweighted mean)		—	20	26	40	43	—	—	23 ± 3.8	20–26

Notes for Alor 2026 (13)

[a] Value from the map's computer-vision method tables (denominator and photo set as on the site's page).
[b] DINOv3 (in-house, frozen Alor/Indonesia model) = mean hard-coral probability over 20 synthesized points per photo, NO water/fish class, so not a benthic denominator (from the map's site cover table).
[c] Coralscapes (v1 EPFL-ECEO/coralscapes-vit-b-dpt; v2 coralscapesv2-dinov3-vitb-lora-dpt) is not considered reliable for these photos: shown, never averaged. Area fraction, not a point count.
[d] CoralSCOP = per-frame sum of colony-mask area fractions (zero-filled; overlapping masks double-count), averaged over frames with an ok row. Area index, not a point count: denominator differs from any point-count reference. It is also unstable frame to frame (the same subject has scored 94.1% in one photo and 23.3% in another), and the mask sum overstates cover most on the healthiest reefs.
[e] Not run: this site's photos are unedited (Goat Fence alone was scored on edited photos).
[f] Claude = blind 7-call point count on the UNEDITED photos, 20 points per photo, (HC+BL)/(20 − WATER − FISH − OBST), unknown points kept in the denominator; mean across photos.
[g] No coral-cover estimate for this site: its photographs show no reef habitat (muck dive), so these values are a comparison only, left out of the row mean and the All-sites row.
[h] CoralSCOP here = the site page's frame-matched row: run on exactly the photos behind the Claude cell (per-frame values joined by file; capped at 100% per photo; zero-filled). Comparison only.
[i] Claude = blind 7-call point count on the EDITED photos, 20 points per photo, (HC+BL)/(20 − WATER − FISH − OBST), unknown points kept in the denominator; mean across photos.
Mean/Range: Mean ± SD and Range are over the CV cells that enter the mean (CoralNet where independent, DINOv3, CoralSCOP unedited/edited, Claude). Gold standard, frames manually annotated in CoralNet, Coralscapes and same-measurement cells are shown in gray italic but never averaged.
Headline (site page): the coral-cover figure the site's page, report card and map pop-up print, with its method; it is never averaged into the CV mean.
Methods: Claude (Anthropic); DINOv3 (Meta; paper; used here as the frozen backbone of the in-house classifier); Coralscapes v1 and v2 (EPFL-ECEO; dataset paper, code); CoralSCOP (Zheng et al., CVPR 2024); CoralNet.
Sites: names drop the region prefix (hover for the full name) and link to the site's CRD page, or to the regional summary page where the site has none. Date = survey date from the map pins (first–last visit); sites are listed earliest first, undated sites last.

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