山あいの集落に、四十年間、毎朝欠かさず雪の深さを測り続けてきた男がいる。In a village among the mountains lives a man who has measured the depth of the snow every single morning for forty years.元小学校教師の岡部さんである。He is Mr Okabe, a former primary school teacher.気象台から委託された観測で、手当はごくわずかだ。The observations are carried out on behalf of the meteorological office, and the allowance is tiny.それでも岡部さんは、吹雪をものともせず、午前九時きっかりに庭の雪尺の前に立つ。Even so, undaunted by blizzards, Mr Okabe stands in front of the snow gauge in his garden at nine o'clock sharp.
その記録に目をつけたのは、大学で気候変動を研究する若い研究者、三浦だった。The one who took notice of his records was Miura, a young university researcher studying climate change.衛星のデータは広い範囲を捉えられるが、谷ひとつひとつの細かな変化までは分からない。Satellite data can cover a wide area, but it can't pick up the fine changes in each individual valley.地上で長年続けられた記録は、それだけで貴重な資料になる。Records kept on the ground over many years are valuable material in their own right.だが、そうした記録を続けられる人は、年々減っている。But the number of people able to keep such records going is falling year by year.
三浦が訪ねた日は、あいにくの大雪だった。Unfortunately, the day Miura visited, there was heavy snow.麓に車を置き、膝まで埋まる雪をものともせず坂を上ると、岡部さんが玄関先で待っていた。He left his car at the foot of the hill and, undeterred by snow up to his knees, climbed the slope to find Mr Okabe waiting at his front door.「この雪の中、よく来ましたね。」"Well done for making it in this snow."八十を過ぎているとは思えない、張りのある声だった。His voice was so strong it was hard to believe he was past eighty.
居間の棚には、黄ばんだ観測ノートがずらりと並んでいた。On the shelves in the living room stood row upon row of yellowed observation notebooks.一冊ずつめくっていくと、数字の横に、ときどき短い書き込みがある。Leafing through them one by one, he found short notes written here and there beside the figures.「長女誕生」「屋根の雪下ろし、腰を痛める」「妻、入院」。"Eldest daughter born." "Clearing snow off the roof, hurt my back." "Wife admitted to hospital."三浦は思わず手を止めた。Miura stopped turning the pages without meaning to.入院の日の欄にも、数字はきちんと記されていたのだ。Even on the day of the hospital admission, the figure had been properly recorded.
「こんな日まで、測られたんですか。」"You took a measurement even on a day like this?"「病院へ行く前に測りました。一日抜けると、そこだけ穴が開くでしょう。」"I measured it before going to the hospital. If you miss a day, it leaves a hole, doesn't it?"岡部さんは事もなげに言った。Mr Okabe said it as if it were nothing.数字の一つ一つの向こうに、こうした朝が積み重なっていることを、三浦はこれまで考えたこともなかった。Miura had never before considered that behind every single figure lay a whole accumulation of mornings like these.
三浦はデータを持ち帰り、ほかの地点の記録と照らし合わせた。Miura took the data back and compared it with records from other locations.予想どおり、この四十年で積雪の量ははっきりと減っていた。As he had expected, the amount of snow had clearly fallen over those forty years.論文は専門誌に採用され、ささやかながら話題にもなった。His paper was accepted by a specialist journal and even attracted some modest attention.
春になって、三浦は論文の抜き刷りを持って再び集落を訪ねた。When spring came, Miura visited the village again, bringing an offprint of the paper.雪解け水が、集落の水路を勢いよく流れていた。Meltwater was rushing through the village channels.岡部さんは老眼鏡をかけ、グラフをしばらく眺めていた。Mr Okabe put on his reading glasses and studied the graph for a while.やがて顔を上げると、少し寂しそうに笑った。Eventually he looked up and smiled a little wistfully.「私は毎朝雪を測っていただけですが、そのあいだに、雪のほうが減っていったんですね。」"All I did was measure the snow every morning, but all the while, the snow itself was dwindling."
帰り際、三浦は庭の雪尺に目をやった。As he was leaving, Miura glanced at the snow gauge in the garden.目盛りの下のほう、ちょうど子どもの背丈ほどの高さに、小さな刻み目がいくつも並んでいた。Low down on the scale, at about the height of a child, was a row of small notches.孫たちの背を測った跡だと、岡部さんは照れくさそうに教えてくれた。They were where he had measured his grandchildren's heights, Mr Okabe told him, looking a little embarrassed.