{ "what": "The island model (Swell, apps/swell/model/surf.js) against the Boussinesq model (frontier-apps, Celeris solver), surf-zone Hs for a 1 m swell, case by case at the beaches both cover. A COMPARISON in the grammar of design/WARRANT.md: a check of the island model's simplifications against fuller physics, neither a code verification nor a validation against the sea.", "made": "node apps/swell/sim/compare.js", "inputs": { "apps/swell/data/boussinesq/transfer-campeche.json": "a78d950b0f342fd8f401f3b66c0c842749c4efb1d06844f9b9b8748b4a480166", "apps/swell/data/boussinesq/transfer-joaquina.json": "6b178c1b0edb8b1b5e2e25066f5588f3cf5aa9ec43769fd9082b4eea0a2d17d0", "apps/swell/data/boussinesq/transfer-joaquina5.json": "04c53fafd4efac08773313e523b09462792640d60b8ca08d79c63cfe0dc45017", "apps/swell/data/boussinesq/transfer-lagoinha.json": "b81175d18ffdec0fd66dd429317ea57b12f8b81e897aa478cf44622b34e132ce", "apps/swell/data/boussinesq/transfer-santinho.json": "10e96dbc423bb954af098510e7e8508fe67e323a3751939e89596edf25e906bc", "apps/swell/data/beaches.json": "456a7fb26851ae4446386d402ffe1438fab7cea86e735316bb1e2e5d1cf8dc54", "apps/swell/model/surf.js": "5307204437c34c142acdb7e3edacf333694098c2ddf3156c2c0435dad7b9aa19" }, "pairs": 556, "beaches": 12, "readings": { "swell": { "all": { "n": 556, "r": 0.438, "bias": 0.272, "rmse": 0.508, "medianRatio": 1.617, "meanBous": 0.445, "meanIsland": 0.717 }, "longSwells": { "n": 300, "r": 0.481, "bias": 0.162, "rmse": 0.466, "medianRatio": 1.188, "meanBous": 0.623, "meanIsland": 0.785 }, "byPeriod": { "5": { "n": 14, "r": 0.769, "bias": 0.631, "rmse": 0.687, "medianRatio": 8.75, "meanBous": 0.075, "meanIsland": 0.707 }, "6": { "n": 14, "r": 0.826, "bias": 0.462, "rmse": 0.511, "medianRatio": 2.764, "meanBous": 0.245, "meanIsland": 0.707 }, "7": { "n": 114, "r": 0.266, "bias": 0.48, "rmse": 0.596, "medianRatio": 6.543, "meanBous": 0.123, "meanIsland": 0.603 }, "9": { "n": 114, "r": 0.331, "bias": 0.288, "rmse": 0.489, "medianRatio": 1.895, "meanBous": 0.367, "meanIsland": 0.655 }, "11": { "n": 100, "r": 0.444, "bias": 0.23, "rmse": 0.458, "medianRatio": 1.422, "meanBous": 0.485, "meanIsland": 0.715 }, "13": { "n": 100, "r": 0.464, "bias": 0.158, "rmse": 0.461, "medianRatio": 1.104, "meanBous": 0.629, "meanIsland": 0.787 }, "16": { "n": 100, "r": 0.499, "bias": 0.097, "rmse": 0.479, "medianRatio": 1.028, "meanBous": 0.754, "meanIsland": 0.852 } }, "byBeach": { "Armação": { "n": 55, "r": 0.563, "bias": 0.309, "rmse": 0.499, "medianRatio": 1.676, "meanBous": 0.302, "meanIsland": 0.611 }, "Campeche": { "n": 35, "r": 0.435, "bias": 0.409, "rmse": 0.556, "medianRatio": 1.753, "meanBous": 0.589, "meanIsland": 0.998 }, "Galheta": { "n": 35, "r": 0.575, "bias": 0.183, "rmse": 0.375, "medianRatio": 1.397, "meanBous": 0.59, "meanIsland": 0.774 }, "Ilha do Campeche": { "n": 35, "r": 0.097, "bias": 0.766, "rmse": 0.861, "medianRatio": 4.525, "meanBous": 0.255, "meanIsland": 1.021 }, "Ingleses": { "n": 35, "r": 0.515, "bias": -0.084, "rmse": 0.438, "medianRatio": 0.931, "meanBous": 0.635, "meanIsland": 0.551 }, "Joaquina": { "n": 63, "r": 0.345, "bias": 0.274, "rmse": 0.519, "medianRatio": 1.648, "meanBous": 0.535, "meanIsland": 0.809 }, "Lagoinha do Leste": { "n": 55, "r": 0.671, "bias": 0.514, "rmse": 0.629, "medianRatio": 2.526, "meanBous": 0.299, "meanIsland": 0.813 }, "Matadeiro": { "n": 55, "r": 0.758, "bias": 0.173, "rmse": 0.348, "medianRatio": 1.258, "meanBous": 0.357, "meanIsland": 0.53 }, "Mole": { "n": 63, "r": 0.551, "bias": 0.375, "rmse": 0.473, "medianRatio": 1.971, "meanBous": 0.432, "meanIsland": 0.807 }, "Morro das Pedras": { "n": 35, "r": 0.355, "bias": 0.122, "rmse": 0.456, "medianRatio": 1.165, "meanBous": 0.706, "meanIsland": 0.828 }, "Pântano do Sul": { "n": 55, "r": 0.159, "bias": -0.109, "rmse": 0.324, "medianRatio": 0.479, "meanBous": 0.301, "meanIsland": 0.192 }, "Santinho": { "n": 35, "r": 0.478, "bias": 0.369, "rmse": 0.497, "medianRatio": 1.692, "meanBous": 0.568, "meanIsland": 0.938 } }, "byBeachLong": { "Armação": { "n": 33, "r": 0.601, "bias": 0.261, "rmse": 0.471, "medianRatio": 1.414, "meanBous": 0.421, "meanIsland": 0.683 }, "Campeche": { "n": 21, "r": 0.29, "bias": 0.315, "rmse": 0.491, "medianRatio": 1.511, "meanBous": 0.803, "meanIsland": 1.118 }, "Galheta": { "n": 21, "r": 0.345, "bias": 0.007, "rmse": 0.282, "medianRatio": 0.992, "meanBous": 0.842, "meanIsland": 0.849 }, "Ilha do Campeche": { "n": 21, "r": -0.202, "bias": 0.749, "rmse": 0.88, "medianRatio": 3.337, "meanBous": 0.357, "meanIsland": 1.106 }, "Ingleses": { "n": 21, "r": 0.723, "bias": -0.266, "rmse": 0.444, "medianRatio": 0.43, "meanBous": 0.846, "meanIsland": 0.58 }, "Joaquina": { "n": 21, "r": 0.269, "bias": 0.049, "rmse": 0.434, "medianRatio": 1.078, "meanBous": 0.858, "meanIsland": 0.907 }, "Lagoinha do Leste": { "n": 33, "r": 0.779, "bias": 0.495, "rmse": 0.608, "medianRatio": 1.984, "meanBous": 0.436, "meanIsland": 0.931 }, "Matadeiro": { "n": 33, "r": 0.888, "bias": 0.083, "rmse": 0.252, "medianRatio": 1.08, "meanBous": 0.5, "meanIsland": 0.583 }, "Mole": { "n": 21, "r": 0.554, "bias": 0.29, "rmse": 0.402, "medianRatio": 1.554, "meanBous": 0.68, "meanIsland": 0.97 }, "Morro das Pedras": { "n": 21, "r": 0.496, "bias": -0.08, "rmse": 0.351, "medianRatio": 1.016, "meanBous": 0.959, "meanIsland": 0.879 }, "Pântano do Sul": { "n": 33, "r": 0.309, "bias": -0.194, "rmse": 0.341, "medianRatio": 0.388, "meanBous": 0.394, "meanIsland": 0.201 }, "Santinho": { "n": 21, "r": 0.463, "bias": 0.233, "rmse": 0.354, "medianRatio": 1.216, "meanBous": 0.799, "meanIsland": 1.032 } } } }, "note": "Swells of 11 s and longer are where both models resolve the waves: the 10 m Boussinesq grids drop components under about 6.8 s, so its short-period cases read low (frontier README). bias = island minus Boussinesq; medianRatio = island / max(Boussinesq, 0.05)." }